|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||042/076.01; 089/014.05; 428/908.8|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 14|
A dynamic process for increasing the wear life of ferrous articles subjected to a high-temperature environment created by combustion of a propellant or fuel comprises selecting the propellant or fuel so that its combustion products include relatively large amounts of nitrogen, which nitrogen forms a protective nitride layer on the surface of the ferrous article. Disclosed is a specific embodiment of the invention for prolonging the wear life of gun barrels.
The invention claimed is: 1. A method for enhancing the wear life of a ferrous article which is exposed to a high-temperature atmosphere created by the combustion of a fuel, said method comprising: providing a nitrogen content fuel, said fuel generating, upon combustion, a combustion product gas which includes at least 20% by mole fraction nitrogen, wherein the mole fraction ratio of CO to CO2 in the combustion product gas is greater than 3.0, and the mole fraction ratio of nitrogen to CO in the combustion product gas is at least 0.65; combusting said f...