不锈钢充氚后的微观组织研究  

TEM Study of Tritium Effect in Stainless Steel

作　　者：任大鹏[1] 邹觉生[1] 陈锡瑶[1] 倪然夫[1] 向士凯[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《机械工程材料》2002年第8期15-17,共3页Materials For Mechanical Engineering

基　　金：中国工程物理研究院科学技术基金资助项目

摘　　要：用高温气相充氚技术 ,对抗氢脆不锈钢充氚后微观组织进行研究。发现氚 (氢 )可使透射样品晶界产生腐蚀行为 ,氚 (氢 )使晶内位错密度增加。利用氚自射线照相法 ,研究了氚在抗氢脆不锈钢中的分布特征。结果表明 :氚在晶界、位错处聚集。This paper reports the TEM study of the hydrogen resistant stainless steel HR 1, HR 2 and HR 3 which were charged with tritium in mixed atomsphere of deutium and tritium at elevated temperature. It is found that the grain boundries had been distinctly corroded and dislocation density raised after charging tritium. The distribution characteristics were tested by tritium autoradiography and showed that tritium concentrated in the grain boundaries and dislocations.

关 键 词：抗氢脆不锈钢 高温气相充氚 氚自射线照相 氚陷阱 TEM 微观组织 

分 类 号：TG142.71[一般工业技术—材料科学与工程]