| 摘要 |
A method for cleaning metal parts, particularly crack damaged gamma prime hardened nickel alloy parts, but also including stainless steels superalloys, and solid solution superalloys in order to render them brazable or otherwise bondable. The method makes use of a C-O-H-F atmosphere as the primary cleaning material wherein the atmosphere has an H/O ratio of 104 or greater, and a C/F ratio of approximately 0.01 to less than 2.0. The preferred source of the C-O-H-F atmosphere is thermal decomposition of a fluorocarbon resin and a low moisture containing hydrogen gas although sources other than fluorocarbon resins are also disclosed.
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