초록 ▼

A component subjected to one or more of rolling, sliding, abrasion and bending contacts is disclosed. The component has a surface and functionally graded material (FGM) thermally sprayed on the surface to form an FGM coating. The FGM coating has a thickness and a plurality of material compositions.

A component subjected to one or more of rolling, sliding, abrasion and bending contacts is disclosed. The component has a surface and functionally graded material (FGM) thermally sprayed on the surface to form an FGM coating. The FGM coating has a thickness and a plurality of material compositions. The FGM coating also has a plurality of elastic modulus profiles. Each elastic modulus profile consists of a plurality of elastic modulii at a plurality of corresponding points within that thickness. The elastic modulii are in the range from about 28 Mpsi to about 60 Mpsi. Optionally, there is also a plurality of carbon content profiles.

대표청구항 ▼

[ What is claimed is:] [1.] A steel component subjected to one or more of rolling, sliding, abrasion and bending contacts, said component comprising:a surface;a functionally graded material (FGM) selected from the group consisting of ceramics, metallics, and cermets thermally sprayed on said surface

[ What is claimed is:] [1.] A steel component subjected to one or more of rolling, sliding, abrasion and bending contacts, said component comprising:a surface;a functionally graded material (FGM) selected from the group consisting of ceramics, metallics, and cermets thermally sprayed on said surface and being formed into an FGM coating, said FGM coating having a thickness, a plurality of material compositions, and a plurality of elastic modulus profiles, said elastic modulus profiles consisting of:a first elastic modulus profile in a range from about 28 Mpsi to about 45 Mpsi from said surface of the coating to about 15% of said coating thickness as measured from said surface of said coating;a second elastic modulus profile in a range from about 35 Mpsi to about 45 Mpsi from said surface of the coating to about 15% to about 65% of said coating thickness as measured from said surface of said coating;a third elastic modulus profile in a range from about 45 Mpsi to about 28 Mpsi from said surface of the coating to about 65% to about 85% of said coating thickness as measured from said surface of said coating; anda fourth elastic modulus profile in a range from about 32 Mpsi to about 28 Mpsi from said surface of the coating to about 85% to about 100% of said coating thickness as measured from said surface of said coating.