工程科学学报2016，Vol.38Issue(z1)：238-242,5.DOI:10.13374/j.issn2095-9389.2016.s1.039
保温时间和冷却方式对 Fe--28 Mn--2.8 Si--2.2 Al--TWIP钢组织和力学性能的影响
Effect of annealing time and cooling methods on the microstructure and mechanical properties of Fe--28 Mn--2. 8 Si--2. 2 Al--TWIP steel
摘要
Abstract
The effect of annealing time and cooling methods on the microstructure and mechanical properties of Fe-28Mn-2. 8Si-2. 2Al-TWIP steel was studied by optical microscopy and electron backscatter diffraction technology. It is found that when the annea-ling time is 5, 10 and 20 min, the austenite grains grow quickly. At the same time, annealing twins in the austenite grains get long and thick, the tensile strength and yield strength decrease, but the change in elongation is little. Compared with air cooling, water cooling is more advantageous for the TWIP steel to obtain good mechanical properties, and the cooling rate has a certain effect on the grain ori-entation.关键词
汽车用钢/冷却/保温时间/微观组织/力学性能Key words
automobile steel/cooling/annealing time/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
代永娟,李辉,冯捷,米振莉,唐荻..保温时间和冷却方式对 Fe--28 Mn--2.8 Si--2.2 Al--TWIP钢组织和力学性能的影响[J].工程科学学报,2016,38(z1):238-242,5.基金项目
国家自然科学基金资助项目(51474085,51101048),河北省钢铁联合基金资助项目(E2013208131) （51474085,51101048）
