燕山大学学报2016，Vol.40Issue(1)：35-38,50,5.DOI:10.3969/j.issn.1007-791X.2016.01.006
一种TRIP／TWIP型双相不锈钢的相图及其亚稳奥氏体组织稳定性计算
Calculation for the phase diagram and stability of metastable austenite in a TRIP/TWIP duplex stainless steel
摘要
Abstract
The phase diagram and stability of metastable austenite ( phase) of a duplex stainless steel ( DSS) showing phase transformation induced plasticity ( TRIP ) and/or twinning induced plasticity ( TWIP ) was calculated by using the thermodynamic software Thermo⁃Calc.The equilibrium phase diagram of M⁃N,transformation under equilibrium conditions,dis⁃tribution of alloying elements in two phases,stacking fault energy (SFE) and Md30 temperature were obtained.The results show that phase composition and phase proportion were sensitive to temperature,especially the heating temperature ranging from 800 to 1 200 ℃.The variation of element content in two phases modified the stability of metastable austenite (SFE and Md30) and,even⁃tually,the deformation mechanism in the test steel.关键词
Thermo-Calc/双相不锈钢/TRIP/TWIP/相图/亚稳奥氏体Key words
Thermo-Calc/duplex stainless steel/TRIP/TWIP/phase diagram/metastable austenite分类
矿业与冶金引用本文复制引用
陈雷,李飞,张英杰,裴建明,毛天桥,龙红军,王建峰..一种TRIP／TWIP型双相不锈钢的相图及其亚稳奥氏体组织稳定性计算[J].燕山大学学报,2016,40(1):35-38,50,5.基金项目
国家自然科学基金资助项目（51101136）；河北省自然科学基金-钢铁联合研究基金资助项目（ E2016203284）；河北省教育厅青年基金资助项目 （）
