灰口铸铁插销试验断裂原因分析  

Experimental Study on the Cause of Crack Located in Austenite Zone

作　　者：张瑞杰[1] 史光远[1] 李志强[2] 

机构地区：[1]中原工学院机械工程系 [2]中原工学院计算机系,河南郑州450007

出　　处：《中原工学院学报》2004年第2期26-28,共3页Journal of Zhongyuan University of Technology

摘　　要：采用热模拟试验方法探讨了灰口铸铁焊接接头热影响区的奥氏体区组织对接头性能的影响 .结合插销试验结果提出了马氏体相变过程中 。The effect of the structure of Austenite zone on the performance of gray iron welding joint is studied by means of thermo\|simulated test in this paper. Combining with the results of implant test,the conclusion that the main reason of dropping the strength of Austenite zone is the micro\|crack located in the tip of flake graphite and Marten site is drawn.

关 键 词：热模拟试验方法 灰口铸铁 焊接接头 奥氏体区组织 接头性能 插销试验 断裂原因 马氏体相变 

分 类 号：TG406[金属学及工艺—焊接] TG407