夹杂、晶界和缺口前端的氢富集  

HYDROGEN ACCUMULATION ON INCLUSIONS,GRAIN BOUNDARY AND NEAR NOTCH TIP

作　　者：于广华[1] 程以环[1] 陈廉 乔利杰[1] 褚武扬[1] 

机构地区：[1]北京科技大学,中国科学院金属研究所,辽宁省材料与氢重点实验室

出　　处：《金属学报》1995年第10期A454-A460,共7页Acta Metallurgica Sinica

基　　金：宝山钢铁公司及国家自然科学基金

摘　　要：用离子探针研究了２８ＣｒＭｏＴｉＢ油管钢中氢在夹杂、晶界和缺口前端的富集。结果表明，在ＴｉＮ，Ａｌ２Ｏ３，ＴｉＯ，ＭｎＳ以及复合氧化物夹杂界面的氢富集分别为１０─２０，８─１４，１０，１０─１７以及１３─１４，氢在表面和晶界的富集分别为１２和７．３．在加载缺口前端存在两个氢富集峰，氢富集为２．５─４．５．Hydrogen accumulation on inclusions, grain boundary and near a loaded notch tip in 28CrMoTiB steel was measured using ion microprobe mass analyzer. The results showed that accumulation of hydrogen on inclusions of TiN, Al2O3, TiO, MnS and compound oxide was 10─20, 8─14, 10, 10─17 and 13─14, respectively. The accumulation of hydrogen on surface of the specimen and the grain boundary was 1.2 and 7.3, respectively.There were two peaks of hydrogen accumulation ahead of a loaded notch tip and correspounding accumulation were 2.5 to 4.5. On grain boundary,there was no segregation for B,P and C,however,positive segregation for Ti,Cr,Mo and O,and negative segregation for Mn and S.

关 键 词：夹杂 晶界 氢富集 油管钢 缺口 

分 类 号：TG111.6[金属学及工艺—物理冶金]