[보고서]원자력용 나노산화물분산강화합금 개발

김성수

보고서 정보

주관연구기관

한국원자력연구원

연구책임자

김성수

참여연구자

장진성 , 김우곤 , 김성호 , 김태규 , 정충환 , 류호진 , 김상현 , 한창희

보고서유형

2단계보고서

발행국가

대한민국

언어

한국어

발행년월

2012-04

과제시작연도

2011

주관부처

교육과학기술부

사업 관리 기관

한국연구재단

등록번호

TRKO201300019600

과제고유번호

1345157285

DB 구축일자

2013-09-14

키워드

나노산화물,기계적 합금,분산강화,크리프,조사저항성,파괴인성,충격에너지nano-oxide,mechanical alloying,dispersion strengthening,creep,irradiation resistance,fracture toughness,impact energy

표 Summary of specification of impact tester for KLST specimen in MA 316 ODS and Wet 316 ODS.
표 Summary of Hv variation across the thickness of SPS in MA 316 ODS and Wet 316 ODS specimens.
표 Summary of impact energy in KLST specimen in MA 316 ODS and Wet 316 ODS.
표 Fig. 2.1.1. Fabrication process of the MA 316 ODS steel.
표 Fig. 2.1.2. Fabrication process of the Wet 316 ODS steels.
표 Fig. 2.1.3. Optical microstructure of SPS sintered at 850℃ in MA 316 ODSsteels
표 Fig. 2.1.4. Optical microstructure of SPS sintered at 904℃ in MA 316 ODSsteels
표 Fig. 2.1.5. Optical microstructure of SPS sintered at 950℃ in MA 316 ODSsteels
표 Fig. 2.1.6. Optical microstructure of SPS sintered at 1050℃ in MA 316 ODSsteels
표 Fig. 2.1.7. Optical microstructure of SPS sintered at 896℃ in Wet 316 ODSsteels.
표 Fig. 2.1.8. Optical microstructure of SPS sintered at 950℃ in Wet 316 ODSsteels.
표 Fig. 2.1.9. Hardness profile across the thickness in in MA 316 ODS and Wet316 ODS
표 Fig. 2.1.10. Microstructure and indentation mark across the thickness in MA316 ODS and in Wet 316 ODS in SPS state.
표 Fig. 2.1.11. Dimension and configuration of KLST impact specimens.
표 Fig. 2.1.12. Impact energy in MA 316 ODS and Wet 316 ODS.
표 Chemical composition of 316 ODS and FMS ODS alloys.
표 Result of chemical composition analysis for 316L ODS and FMS ODS alloys [wt.%].
표 Summary of impact test results in 316 and FMS ODS Alloys.
표 Chemical composition of austenitic ODS alloys after degassing.
표 Fig. 2.2.1. Photographs of sintered 316 and FMS ODS alloys after HIPtreatment.
표 Fig. 2.2.2. Photographs of hot rolled 316 and FMS ODS alloys at 1250℃.
표 Fig. 2.2.3. Microstructure of hot rolled and annealed MA 316L, Wet 316Land FMS ODS alloys at 1250℃.
표 Fig. 2.2.5. TEM micrograph showing grain shape in MA 12Cr ODS alloy.
표 Fig. 2.2.4. TEM micrograph showing grain shape in MA 9Cr ODS alloy.
표 Fig. 2.2.6. TEM micrograph showing oxide dispersion in MA 316L ODSalloy.
표 Fig. 2.2.7. Distribution of oxide particles in MA 316L, Wet 316L, FMS ODSalloys.
$Fig. 2.2.8. Photographs of fractured shape of impact specimens after impacttests in 316 and FMS ODS alloys.$ 표 Fig. 2.2.8. Photographs of fractured shape of impact specimens after impacttests in 316 and FMS ODS alloys.
표 Fig. 2.2.9. Impact energy by KLST specimen at RT in 316 and FMS ODSAlloys.
표 Fig. 2.2.10. Comparison of strain-stress curves in MA 316L, Wet 316L andFMS ODS alloys at RT.
표 Fig. 2.2.11. Microstructures of two austenitic ODS steels after heattreatment at 1150℃ for 1 hr treated by: (a) M1: mechanical milling and (b)W2: wet mixing
표 Fig. 2.2.12. Oxide particle in austenitic ODS steel
표 Fig. 2.2.13. Size distribution of oxide particles in the matrix of austeniticODS steels
표 Fig. 2.2.14. Tensile properties of austenitic ODS steels
표 Fig. 2.2.15. Oxide particles in an austenitic ODS steel without silicon
표 Fig. 2.2.16. Size distribution of oxide particles in the matrix of an austeniticODS steel without silicon.
표 Fig. 2.2.17. Tensile properties of three austenitic ODS steels at 700℃.
표 Summary of tensile results in austenite ODS alloys.
표 Fig. 2.3.2. Comparison of strain-stress curves in MA 316 ODS alloy hotrolled at 1250℃ into 6 mm thickness.
표 Fig. 2.3.1. Dimension of tensile specimen.
표 Fig. 2.3.3. Comparison of strain-stress curves in MA 316 ODS alloy hotrolled at 1250℃ into 6 mm thickness
표 Fig. 2.3.4. Comparison of strain-stress curves in 9Cr FMS ODS alloy hotrolled at 1250℃ into 12 mm thickness.
표 Fig. 2.3.5. Comparison of strain-stress curves in 12Cr FMS ODS alloy hotrolled at 1250℃ into 12 mm thickness.
표 Fig. 2.3.6. Comparison of strain-stress curves tested at RT in 316 ODS andFMS ODS alloy hot rolled at 1250℃.
표 Fig. 2.3.8. Comparison of strain-stress curves tested at 700℃ in 316 ODSand FMS ODS alloy hot rolled at 1250℃.
표 Fig. 2.3.9. Yield and tensile stress with temperature in MA 316 ODS andWet 316 ODS alloys hot rolled at 1250℃ into 6mm thickness.
표 Fig. 2.3.10. Yield and tensile stress with temperature in 9Cr and 12Cr FMSODS alloys hot rolled at 1250℃ into 6mm thickness.
표 Fig. 2.3.11. Comparison of strain-stress curves in the longitudinal directionin MA 316 ODS alloy hot rolled at 1250℃ into 2mm thickness.
표 Fig. 2.3.12. Comparison of strain-stress curves in the longitudinal directionin Wet 316 ODS alloy hot rolled at 1250℃ into 2mm thickness.
표 Fig. 2.3.13. Comparison of strain-stress curves in longitudinal andtransverse direction in Wet 316 ODS alloy, showing isotropic tensilebehavior.
표 Fig. 2.3.14. Yield and tensile stress with temperature in MA 316 ODS andWet 316 ODS alloys hot rolled at 1250℃ into 2mm thickness.
표 Fig. 2.3.15. Yield and tensile stress with temperature in MA 316 ODS andWet 316 ODS alloys hot rolled at 1250℃ into 2mm thickness.
표 Fig. 2.3.16. Comparison of yield strength in SS 316 LN, Wet 316, and MA316 ODS alloys.
표 Fig. 2.3.17. Comparison of tensile strength in SS 316 LN, Wet 316, and MA316 ODS alloys.
표 Fig. 2.3.18. Comparison of yield strength in 9Cr FMS, 9Cr FMS ODS and12Cr FMS ODS alloy.
표 Fig. 2.3.19. Comparison of tensile strength in 9Cr FMS, 9Cr FMS ODS and12Cr FMS ODS alloy.
표 Fig. 2.3.20. Comparison of strain-stress curves tested at 700℃ in austenite316 ODS alloy.
표 Chemical composition of MA 9Cr FMS ODS alloy for creep test.
표 Summary of creep test results for MA 9Cr FMS ODS.
표 Fig. 2.4.1. Optical microstructure of the MA 9Cr FMS ODS alloy.
표 Fig. 2.4.2. Photographs of the crept MA 9Cr FMS ODS alloy specimens.
표 Fig. 2.4.3. SEM microstructure of the MA 9Cr FMS ODS specimen crept at700℃ under 160 MPa..
표 Fig. 2.4.4. SEM microstructure of the MA 9Cr FMS ODS specimen crept at700℃ under 140 MPa.
표 Fig. 2.4.5. SEM microstructure of the MA 9Cr FMS ODS specimen rept at700℃ under 120 Mpa
표 Fig. 2.4.6. SEM microstructure of the MA 9Cr FMS ODS specimen crept at700℃ under 100 MPa.
표 Fig. 2.4.7. Optical microstructure of the MA 9Cr FMS ODS specimen creptat 700℃ under 100 MPa.
표 Fig. 2.4.8. Creep strain with time at 700℃ in MA 9Cr FMS ODS under 70and 80 MPa.
표 Fig. 2.4.9. Prediction of creep rupture strength in 10,000 hours at 700℃ inMA 9Cr FMS ODS.
표 Fig. 2.4.10. Fitting of steady state creep rate for prediction of creep rupturetime in MA 9Cr FMS ODS.
표 Fig. 2.4.10. Geometry and dimensions of creep specimen
표 Fig. 2.4.11. Creep strength and creep rupture time of 12Cr ODS alloy specimen
표 Fig. 2.4.12. Creep curves of three 12Cr ODS alloy specimen; 70 and 80 MPa at 700oC
표 Fig. 2.4.13. Creep strength and creep rupture time of 9Cr ODS alloy specimen
표 Fig. 2.4.14. Variation of n value along with the applied stress on 12Cr ODS specimen
표 Fig. 2.4.15. Variation of n value along with the applied stress on 9Cr ODS specimen
표 Fig. 2.4.16. Monkman-Grant relationship of 12Cr ODS alloy specimen
표 Fig. 2.4.17. Monkman-Grant relationship of 9Cr ODS alloy specimen
표 Fig. 2.4.18. Creep rupture elongation of 9Cr ODS alloy specimen
표 Fig. 2.4.19. Lattice variation in ferritic martensite during creep tests inFe-11Cr ODS.
표 Fig. 2.4.20. variation of lattice strain in ferritic martensite during creep testsin Fe-11Cr ODS.
표 Fig. 2.4.21. Lattice variation with stress in ferritic martensite during creeptests in Fe-11Cr ODS.
표 Chemical composition of alloys for ion irradiation.
표 Summary of conditions of Fe4+ ion irradiation in MA 316L ODS.
표 Summary of the conditions of 122MeV 20Ne7+ ion irradiation.
표 Summary of the effects of Fe4+ ion irradiation in MA 316L ODS.
표 Fig. 2.5.1. TEM micrographs showing grain and twinning in MA 316L ODS.
표 Fig. 2.5.2. TEM micrographs showing oxide particles in MA 316L ODS.
표 Fig. 2.5.3. Hardness variation and TEM microstructure after Fe ionirradiation in MA 316 ODS.
표 Fig. 2.5.4. Hardness variation and TEM microstructure after Fe ionirradiation in WET 316 ODS.
표 Fig. 2.5.5. Hardness variation and TEM microstructure after Fe ionirradiation in commercial 316 stainless steel.
표 Fig. 2.5.6. Hardness variation by Fe ion irradiation in MA 316 ODS, Wet316 ODS, and commercial 316 stainless steel.
표 Fig. 2.5.7. Comparison of TEM microstructure before and after ionirradiation in MA 956, Inconel 800H, FMS T92b Alloys.
표 Fig. 2.5.8. Comparison of TEM microstructure before and after ionirradiation in MA 956 Alloy.
표 Fig. 2.5.9. Comparison of TEM microstructure before and after ionirradiation in Inconel 800H Alloy.
표 Fig. 2.5.10. Comparison of TEM microstructure before and after ionirradiation in FMS T92b Alloy
표 Fig. 2.5.12. Typical morphology of cavities in the peak damaged region inMA 956 ODS alloy, a) 5 dpa at 440℃, b) 10 dpa at 440℃, c) 5 dpa at 570℃, and d) 10dpa at 570℃.
표 Fig. 2.5.13. Comparison of swelling damage and the number of cavity by Neion irradiation in grade 92 and MA 956 ODS alloy.
표 Fig. 2.6.1. Pressure variation of SPS chamber with applied load into mold inFe-11Cr-2Nb-1.1W ODS alloy during SPS process.
표 Fig. 2.6.2. Pressure variation of SPS chamber with applied load into mold inFe-11Cr-1.1W ODS and Fe-11Cr-2Nb-1.1W ODS alloy during SPS process
표 Fig. 2.6.3. Pressure variation of SPS chamber with applied load into mold inFe-11Cr-2Nb-1.1W ODS alloy during SPS process
표 Fig. 2.6.4. Standard free energy of formation of some oxides as a functionof temperature.
표 Fig. 2.6.5. Binary phase diagram in Fe-Nb system.
표 Fig. 2.6.6. Binary phase diagram in Fe-Nb system.
표 Fig. 2.6.7. Fabrication diagram to optimize manufacturing route ofFe-11Cr-2Nb-1.1W ODS alloy.
표 Fig. 2.6.8. Photograph of SPS sintered (a) Fe-11Cr-1.1W and (b)Fe-11Cr-2Nb-1.1W ODS alloy specimens.
표 Fig. 2.6.9. Photograph of forged (a) Fe-11Cr-1.1W and (b)Fe-11Cr-2Nb-1.1W ODS alloy specimens.
표 Fig. 2.6.10. Dimension of a) KLST impact specimen and b) pin type tensilespecimen.
표 Mechanical properties with temperature in 0% Nb ODS.
표 Mechanical properties with temperature in 2% Nb ODS.
표 Summary of mechanical properties in 0% Nb and 2% Nb ODS alloys.
표 Improvement ratio with 2% Nb addition in Fe-12Cr ODS.
표 Fig. 2.6.11. Stress-strain curves of 0Nb ODS alloy with 6.7x10-4 sec-1 strain rate atroom temperature, 600, 700 and 800oC.
표 Fig. 2.6.12. Stress-strain curves of 2Nb ODS alloy with 6.7x10-4 sec-1 strain rate atroom temperature, 600, 700 and 800oC.
표 Fig. 2.6.13. Comparison of stress-strain curves of 0Nb and 2Nb ODS alloyspecimens at 600, 700, 800℃ with 6.7x10-4 sec-1 strain rate.
표 Fig. 2.6.14. Comparison of stress-strain curves of 0Nb ODS alloy withdifferent strain rates at 700℃.
표 Fig. 2.6.15. Comparison of stress-strain curves of 2Nb ODS alloy withdifferent strain rates at 700℃.
표 Fig. 2.6.16. Comparison of yield strength of 0Nb and 2Nb ODS alloys withdifferent strain rates.
표 Fig. 2.6.17. Comparison of tensile strength of 0Nb and 2Nb ODS alloys withdifferent strain rates.
표 Fig. 2.6.18. Comparison of yield strength of 0Nb and 2Nb ODS alloys with6.7x10-4 sec-1 strain rate along with test temperature.
표 Fig. 2.6.19. Comparison of tensile strength of 0Nb and 2Nb ODS alloys with6.7x10-4 sec-1 strain rate along with test temperature
표 Fig. 2.6.19. Comparison of (100), (110), and (111) direct pole figures in 0Nband 2Nb ODS alloy.
표 Fig. 2.6.20. Comparison of (100), (110), and (111) inverse pole figures in0Nb and 2Nb ODS alloy.
표 Fig. 2.6.21. Comparison of distribution of Schmid factor in 0Nb and 2NbODS alloy.
표 Fig. 2.7.1. STEM micrographs of MA 316L ODS alloy specimens showing (a)BF(Bright Field) image and (b) HAADF (High Angle Angular Dark Field) imageshowing the atomic number contrast of the second phase
표 Fig. 2.7.2. Fig. 4.2. HRTEM micrographs of MA 316L ODS alloy specimenshowing the lattice image of Y oxide particle with about 50 nm in diameter.
표 Fig. 2.7.3. HR TEM micrographs of MA 316L ODS alloy specimens showing(a) (b) grain structure, and (c) (d) fine oxide dispersion within grains
표 STEM/EDS spot analysis results of MA 316L ODS alloy specimen in
표 Fig. 2.7.4. Comparison of strain-stress curves tested at 700℃ in 316 ODSand FMS ODS alloy hot rolled at 1250℃.
표 Fig. 2.7.5. Yield and tensile stress with temperature in MA 316 ODS andWet 316 ODS alloys hot rolled at 1250℃ into 6mm thickness.
표 Fig. 2.7.6. Comparison of strain-stress curves in the longitudinal direction inMA 316 ODS alloy hot rolled at 1250℃ into 2mm thickness
표 Fig. 2.7.7. Comparison of yield strength in SS 316 LN and MA 316 ODSalloy.
표 Fig. 2.7.8. Comparison of tensile strength in SS 316 LN and MA 316 ODSalloy.
표 Chemical composition of 9Cr and 12Cr FMS ODS alloys
표 Fig. 2.8.1. TEM micrographs of 12 Cr Fe-bas ODS alloy specimens showing (a) grain structure withdislocation and (b), (c) and (d) fine oxide dispersion within grains
표 Fig. 2.8.2. TEM micrographs of 9 Cr Fe-base ODS alloy specimens showing (a), (b) grain structure, and (c), (d) fine oxide dispersion within grain.
표 Orientation relationships of fine YTaO4 particles with the matrix
표 Fig. 2.8.4. TEM Image of the oxide particles taken by carbon extraction replica sampleand SAD patterns from YCrO3andCr2O3particles
표 Fig. 2.8.3. Typical BF TEM image of the 12Cr ODS steel sample.
표 Fig. 2.8.5. Size distribution of the oxide particles in 12Cr ODS steel specimens,analyzed by SANS
$Fig. 2.8.6. BF TEM image taken with the incident electron beam parallel to the[ 111] zone axis of the matrix; the corresponding SAD pattern shows superimposedpattern of hexagonal pattern from the matrix and weak pattern from oxide particles; DFTEM was taken from the [121] diffraction beam of the YTaO4 particles.$ 표 Fig. 2.8.6. BF TEM image taken with the incident electron beam parallel to the[ 111] zone axis of the matrix; the corresponding SAD pattern shows superimposedpattern of hexagonal pattern from the matrix and weak pattern from oxide particles; DFTEM was taken from the [121] diffraction beam of the YTaO4 particles.
표 Fig. 2.8.7. HRTEM image shows an YTaO4 particle with size of ~4nm and FFT imageindicates the orientation relationship of the particle with the matrix
표 Fig. 2.8.8. HRTEM image shows an YTaO4 particle with size of ~ 7nm. Thecorresponding FFT image shows superimposed spot of (051)YTaO4 plane and (011)Matrixplane. Ledges of (1?21)YTaO4 plane can be found at the particle/matrix interface.
표 Fig. 2.8.9. HRTEM image shows an YTaO4 particle with size of ~15nm. Thecorresponding FFT image and ledged interface structure are shown.
표 Fig. 2.8.10. A rarely found large YTaO4 particle (~50nm) (a) was investigated by SAD(b) and the particle/matrix interface was observed by HRTEM (c). FFT(d) and iFFT(e)images were obtained to show the lattice continuity across the interface. SAD patternand FFT images how that there is specific orientation relationship between the particleand the matrix
표 Summary of aging condition inh commercial MA 956 ODS alloy.
표 Fig. 2.9.1. Vickers hardness variation with aging treatment at 400, 475, 600,700℃ in commercial MA 956 ODS alloy
표 Fig. 2.9.2. d spacing variation with aging time at 475℃ in commercial MA956 ODS alloy.
표 Fig. 2.9.3. d(110) spacing variation with aging treatment at 400, 475, 600, 700℃ in commercial MA 956 ODS alloy.
표 Fig. 2.10.1. A schematic diagram showing the hot compression workabilitytest procedure of two 17Cr Fe-base ODS alloys at nine different testtemperatures fro 900 to 1300oC
표 Fig. 2.10.2. Hot workability test results of two experimental 17Cr Fe-base ODSalloys showing the compression stress at nine different test temperatures
표 Fig. 2.10.3. Stress-strain curves of Fe-base ODS alloy specimens of (a) #2101 and (b) # 2102 at nine different test temperatures from compression hotworkability tests
표 Fig. 2.10.4. Hot workability test samples of (a) # 2101 and (b) # 2102after compression tests at nine different test temperatures
표 Chemical composition of 12Cr ODS
표 Fig. 2.10.5. Photo of stainless steel can containing MA Alloy powder.
표 Fig. 2.10.6. Photo of Can after degassing and reduction process using 5H2-95Armixture gas
표 Fig. 2.10.7. Photo of Fe-12Cr ODS alloy after sintering using HIP.
표 Fig. 2.10.8. Microstructure and oxide distribution of Fe-12Cr ODS
표 Fig. 2.10.9. Size didstribution of precipitation in Fe-12Cr ODS alloy.
표 Fig. 2.10.10. Photos of billet for hot extrusion in Fe-12Cr ODS.
표 Fig. 2.10.12. Photo of Fe-12Cr ODS rod afyer hot extrusion process
표 Fig. 2.10.11. Photo showing hot extrusion process for Fe-12Cr ODS.
표 Fig. 2.10.13. Photo of Fe-12Cr ODS billets for cold drawing.
표 Fig. 2.10.14. Photo showing cold drawing machine for Fe-12Cr ODS.
표 Fig. 2.1.15. Photo of 1st cold drawn tubes with diameter 18.5 mm and with thickness 4.0mm.
표 Fig. 2.10.16. Photo showing machine for flattening of cold drawn tube.
표 Fig. 2.10.17. Furnace for bright annealing in the intermediate annealing.
표 Fig. 2.10.18. Photo showing 3rd drawn tube with diameter 15.7 mm and withthickness 2.5mm
표 Fig. 2.10.20. Photo showing 5th drawn tube with diameter 12.5 mm and withthickness 1.1mm.
표 Fig. 2.10.19. Photo showing 4rd drawn tube with diameter 13.9 mm and withthickness 2.2mm.
표 Fig. 2. 10.21. Photo showing 6th drawn tube with diameter 10.0 mm, with length800 mm, and with thickness 1.0mm.
표 Fig. 2.10.22. 12Cr ODS mother tube, butt welded and waiting for cold drawingprocesses
표 Fig. 2.10.23. Cross section of welded region between ODS and Gr 91 steel.
표 Fig. 2.10.24 Macro- and microstructures of 12Cr ODS alloy extruded mother tubewelded with Gr. 91 steel tube using E911 welding wire
표 Fig. 2.10.25. TEM microstructure of Fe-12Cr ODS tube.
표 Fig 2.10.26. Tensile properties of Fe-12Cr ODS tube.
표 Participants list of IAEA CRP F11014, ‘Benchmarking of structural materials pre-selected for advanced nuclear reactors'
표 Assessment of feasibility of zircalloy, austenitic stainless steels, ODS steels for cladding of high burn-up operation more than 150GWd/t.
표 Oxide formation energy of alloy elements (1500K)
표 Chemical compositions of ODS steels used in this work.
표 Summary of composition in Zr and Hf added ODS
표 Summary of diffusion data for additive element (1150℃).
표 Creep test results at 973K of each candidate ODS steel.
표 Chemical composition of investigated Super ODS steels for electron irradiation.
표 Chemical compositions of Zr, Hf and Ti added ODS steels.
표 Tensile properties of Zr, Hf and Ti added ODS steels.
표 Chemical analysis compositions of the candidate ODS steels.
표 Fig. 6.1. The appearance of ODS steel specimens after corrosion test inLBE for 1x104 hr at 923K
표 Fig. 6.2. The dependence of the weight gain on the Cr and Al contents in16 and 19Cr-ODS steels. SUS430 is a ferritic steel containing 16wt.%Cr and4wt.%Al.
$Fig. 6.3. Aging embrittlement of high Cr-ODS steels. Absorbed fractureenergy was measured at RT with use of miniaturized CVN specimen whichmeasures 1.5 mm square with 20 mm length.$ 표 Fig. 6.3. Aging embrittlement of high Cr-ODS steels. Absorbed fractureenergy was measured at RT with use of miniaturized CVN specimen whichmeasures 1.5 mm square with 20 mm length.
표 Fig. 6.4. The effect of Al addition on the ultimate tensile strength of19Cr-ODS steel at temperature between 300 and 673K. JLF-1 is amartensitic steel with 9wt.%Cr without Al addition.
표 Fig. 6.5. Oxide particles including in several samples after annealing.
$Fig. 6.6. High resolution image and diffraction from oxide particles afterminor alloying addition.$ 표 Fig. 6.6. High resolution image and diffraction from oxide particles afterminor alloying addition.
표 Fig. 6.7. The size of oxide particles as a function of minor alloyingelements.
표 Fig. 6.8. The number density of oxide particles as a function of minoralloying elements
표 Fig. 6.9. Vickers hardness as a function of minor alloying elements
표 Fig. 6.10. Hardness as a function of (number x size) factor in Hf added ODSalloys
표 Fig. 6.11. Oxide particles including in several samples after annealing.
표 Fig. 6.12. Ultimate tensile strength at 973K of each candidate ODS steel(bar). The tensile specimen axis is parallel to extrusion direction. Right axisis a measure of an isotropy in tensile strength.
표 Fig. 6.13. Summary of creep strength of Zr and Hf added ODS (13~16%Cr1.5~4%Al) alloys.
표 Fig. 6.14. He bubbles in ODS steel and JLF-1 steel
표 Fig. 6.15. Depth profile of displacement damages on steels calculated byTRIM98.
표 Fig. 6.16. Cross-sectional TEM images of SOC-1 irradiated at (a) 300 °C,10 dpa (b) 500 °C, 10 dpa (c) 650 °C, 60 dpa.
표 Fig. 6.17. Irradiation hardening of SOC-1 investigated by nano-indentation.
표 Fig. 6.18. Dark field TEM images of dislocation loops on ion irradiatedSOC-1 (a) and (b) 300°C, 10dpa (c) and (d) 500°C, 10dpa.
표 Fig. 6.20. TEM images of complex oxides on the Super ODS steels (a)Unirradiated SOC-1 (b) Unirradiated SOC-5 (c) Unirradiated SOCP-1 (d)Unirradiated SOCP-3 (e) Irradiated SOC-1 (f) Irradiated SOC-5 (g)Irradiated SOCP-1 (h) Irradiated SOCP-3.
표 Fig. 6.19. TEM image of (Y, Al) oxides on SOC-1 irradiated at 650°C and60dpa (a) High magnification TEM image (b) High resolution TEM image ofa oxide taken from Z?=[100].
표 Fig. 6.21. Size distribution of oxides on the Super ODS steels before andafter ion irradiation at 650°C and 60dpa (a) SOC-1 (b) SOC-5 (c) SOCP-1(d) SOCP-3.
표 Fig. 6.22. Averaged diameter of unirradiated and irradiated Super ODSsteels.
표 Fig. 6.23. Schematic diagram of open-loop system for corrosion tests inSCPW.
표 Fig. 6.24. Weight gain as a function of corrosion time of a ferritic alloy,SUS430 and an ODS ferritic steel (SOC5) after exposure to SCPW at 773Kwith 8 ppm of dissolved oxygen under a pressure of 25 MPa. All thematerials contain no Al.
표 Fig. 6.25. Weight gain as a function of corrosion time of ODS ferritic steelsafter exposure to SCPW at 773K with 8 ppm of dissolved oxygen under apressure of 25 MPa.
표 Fig. 6.26. Surface morphologies of specimens after corrosion tes
표 Fig. 6.27. Weight gain of ODS ferritic steels with Cr content (a) and Alcontent (b) after exposure to SCPW at 773K with 8 ppm of dissolvedoxygen under a pressure of 25 MPa.
표 Fig. 6.28. Schematic illustration of the controlling apparatus for the partialpressure of oxygen.
표 Fig. 6.29. Results of the interfacial observation of the developed super ODSsteel candidates
표 Fig. 6.30. Results of the interfacial observation of the developed super ODSsteel candidates
표 Fig. 6.31. Manufacturing process of ODS steels
표 Fig. 6.32. High performance attrition ball mill
표 Fig. 6.33. Load and temperature change in MA process.
표 Fig. 6.34. Effect of rotating speed and MA time on particle sizes.
표 Fig. 6.35. Effect of Al content on the tensile strength at 700℃ inFe-15.5Cr-1.9W-3.9Al ODS.
표 Fig. 6.36. Effect of the third elements on the oxide particle sizes inFe-15.5Cr-1.9W-3.9Al ODS.
표 Fig. 6.37. Relationship between MA powder’ diameter and excessive oxygenin Fe-15.5Cr-1.9W-3.9Al ODS.
표 Fig 6.38. Effect of excessive oxygen content on Vickers hardness inFe-15.5Cr-1.9W-3.9Al ODS.
표 Fig 6.39. Effect of excessive oxygen content on tensile strength at 700℃ inFe-15.5Cr-1.9W-3.9Al ODS.

과제명(ProjectTitle) :	-
연구책임자(Manager) :	-
과제기간(DetailSeriesProject) :	-
총연구비 (DetailSeriesProject) :	-
키워드(keyword) :	-
과제수행기간(LeadAgency) :	-
연구목표(Goal) :	-
연구내용(Abstract) :	-
기대효과(Effect) :	-

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 제목(한글), 저자명(한글), 발행일자, 전자원문, 초록(한글), 초록(영문) 관리번호, 제목(한글), 제목(영문), 저자명(한글), 저자명(영문), 주관연구기관(한글), 주관연구기관(영문), 발행일자, 총페이지수, 주관부처명, 과제시작일, 보고서번호, 과제종료일, 주제분류, 키워드(한글), 전자원문, 키워드(영문), 입수제어번호, 초록(한글), 초록(영문), 목차
저장형식	Text(ASCII format) Excel format
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

원자력용 나노산화물분산강화합금 개발
Development of Nano-sized Oxide Dispersion Strengthened (ODS) Alloy for Nuclear Application 원문보기

초록 ▼

Abstract ▼

목차 Contents

표/그림 (224)

표/그림 (224)

연구자의 다른 보고서 :

참고문헌 (25)

연구과제 타임라인

관련 콘텐츠

원문 보기

이 보고서와 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

원자력용 나노산화물분산강화합금 개발 Development of Nano-sized Oxide Dispersion Strengthened (ODS) Alloy for Nuclear Application 원문보기

초록 ▼

Abstract ▼

목차 Contents

표/그림 (224) 모든 표/그림 보기

표/그림 (224) 슬라이드로 보기

연구자의 다른 보고서 :

김성수 (31) 장진성 (49) 김우곤 (58) 김성호 (101) 김태규 (27) 정충환 (20) 류호진 (53) 한창희 (47)

참고문헌 (25)

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

관련 콘텐츠

원문 보기

이 보고서와 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

원자력용 나노산화물분산강화합금 개발
Development of Nano-sized Oxide Dispersion Strengthened (ODS) Alloy for Nuclear Application 원문보기

표/그림 (224)

표/그림 (224)