LOW TEMPERATURE EMBRITTLEMENT OF AUSTENITIC Fe-Mn ALLOYS

作     者：CHAI Shousen CHAI Shousen Institute of Metal Research,Academia Sinica,Shenyang,China Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang,China

作者机构：Institute of Metal Research Academia Sinica Shenyang China Associate Professor 

出 版 物：《Acta Metallurgica Sinica(English Edition)》 (金属学报(英文版))

年 卷 期：1988年第1卷第0期

页      面：27-33页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：low temperature embrittlement segregation grain boundary phase transformation 

摘      要：Austenite steels are commonly superior in low temperature *** it has beenfound that low temperature embrittlement indeed occurs in some austenite *** believed that it might be caused by a fcc—fct phase transformationat about-100℃.Experiments showed.(1) the existence of low temperatureembrittlement in some austenitic Fe-Mn alloys;(2) the transition temperature ofembrittlement rised with the increase of manganese content and appearance ofintergranular brittle fracture;(3) the segregation of manganese at grain boundaries andits extent varying directly with the manganese content of alloys;(4) the low temperatureembrittlement caused by manganese segregation at grain *** no evidenceindicates that the low temperature embrittlement of Fe-Mn alloys is caused by anfcc-fct phase transformation at about-100℃ as mentioned by ***.