爆轰处理对20CrMo 钢氢脆敏感性的影响  

EFFECT OF EXPLOSIVE TREATMENT ON HYDROGEN EMBRITTLEMENT SUSCEPTIBILITY FOR 20CrMo STEEL

作　　者：隋玉成[1] 余百年[1] 陈亮山[1] 赵明[1] 张万贞[1] 

机构地区：[1]中国科学院金属研究所

出　　处：《材料科学进展》1992年第5期386-390,共5页

摘　　要：本文研究了爆轰处理对不同组织和强度水平的20CrMo 钢氢脆敏感性的影响。结果发现爆轰处理加高温时效可显著降低钢的氢脆敏感性。对屈服强度分别为830MPa 和620MPa 的均相珠光体组织、爆轰处理对其氢脆敏感性没有或略有影响。爆轰处理显著增加了屈服强度为680MPa,组织为铁素体加珠光体材料的氢脆敏感性系数,同时显著降低它对不可逆氢脆的敏感性系数。A study was carried out to determine the effect of explosive treatment onhydrogen embrittlement susceptibility for 20CrMo steel with different microstructure andstrength level.The experimental results showed:explosive treatment followed by high tempera-ture aging can reduce the hydrogen embrittlement susceptibility of homogeneous pearlitemicrostructure with 620MPa or 830MPa yield strength respectively.Explosive treatment in-crease the coefficient of hydrogen embrittlement susceptibility of steel with 680 MPa yieldstrength and ferrite-pearlite microstructure,approximately it greatly reduced the coefficient ofhydrogen embrittlement susceptibility to irreversible hydrogen.

关 键 词：爆轰处理 氢脆 钢 锰 铬 改性 

分 类 号：TG142.14[一般工业技术—材料科学与工程]