C-Mn segregation and its effect on phase transformation and deformation in Fe-Mn-C alloys

被引：0

作者：

朱瑞富

吕宇鹏

魏涛

机构：

[1] CollegeofMaterialScienceandEngineering,ShandongUniversityofTechnology,Jinan,China,CollegeofMaterialScienceandEngineering,ShandongUniversityofTechnology,Jinan,China,CollegeofMaterialScienceandEngineering,ShandongUniversityofTechnology,Jinan,China

来源：

Science in China(Series E:Technological Sciences) | 1997年 / 06期

关键词：

Fe-Mn-C alloy; C-Mn segregation; phase transformation; deformation; valence electron structure;

D O I：

暂无

中图分类号：

TG113 [金相学（金属的组织与性能）];

学科分类号：

080502 ;

摘要：

<正> C-Mn segregation and its effect on phase transformation and plastic deformation in Fe-Mn-C alloys were studied through the calculation of valence electron structure, the microregion composition detection and TEM in-situ dynamic tensile deformation test The experimental results show that in Fe-8Mn-1.2C alloyed austenite, nA of units with C Mn involved is 3 98 times that of units without C involved and 1.4 times that of units with C involved; aCD of units with C-Mn involved is 2 21 times that of units with C involved. In Fe-Mn-C alloyed austenites, there exists microsegrcgation of C-Mn, forming the randomly distributed Fe-Mn-C atomic cluster segregation zone linked with the -C-Mn-C-Mn- strong bond network, which will effectively slow down the motion of atoms and retard the initiation of the slip system and the movement of dislocation, and thus will severely influence the phase transformation and deformation of the alloy

引用

页码：567 / 573

页数：7