Alloys having improved resistance to hydrogen embrittlement

Details Alloys having improved resistance to hydrogen embrittlement Alloys having improved resistance to hydrogen embrittlement

C - Chemistry, Metallurgy

22

C

75/16, 148/55.1

C22C 30/00 (2006.01) C22F 1/10 (2006.01)

Patent

CA 1150535

ABSTRACT OF THE DISCLOSURE Certain high strength alloys lacking resistance to hydrogen embrittlement are cold worked and heat treated utilizing critical pre- selected conditions to result in a unique alloy having increased resistance to hydrogen embrittlement without unacceptable loss of strength. It is theorized that this unexpected improved resistance correlates with the concentration of certain elements, such as phosphorus and sulfur as impurities on the crystallographic boundary surfaces of the alloy. -1-

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