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이헌봉,최상헌,김인배 ( Hun Bong Lee,Sang Hyun Choi,In Bae Kim ) 한국열처리공학회 1993 熱處理工學會誌 Vol.6 No.3
Effects of oxide film which is grown by heat treatment on the hydrogen embrittlement (HE) of 17-4 PH stainless steel were investigated. Specimems were tensile tested after catholic hydrogen charging and the behaviors of HE were evaluated from the elongation change. It was found that specimems solution treated at 1040℃ for 1/2hour showed best retardation ability to HE for both aging conditions i.e. 480℃×1hr and 620℃×4hrs. X-ray and Auger study revealed that the major composition of oxide films are Cr₂O₃and CuCr₂O₄.