Hardening after annealing in nanostructured 316L stainless steel

• 来源期刊: 纳米材料科学（英文版）
• 年，卷（期）: 2020,（1）
• 页码范围: 80-82
• 页数: 3页
• 语种: 中文

摘要

In this work,coarse-grained 316L stainless steels were cold rolled with a thickness reduction of ～83％ (CR 83％).After annealing,the behaviors of the nanostructured stainless steel samples were systematically investigated in the temperatures range of 200 ℃-650 ℃.It was found that with increasing annealing temperature the volume fraction of the α'-martensite first increased to reach a maximum value at 400 ℃,then the volume fraction decreased with further increases of the annealing temperature.The yield strength was increased from 1400 MPa to 1720 MPa after annealing;this strong hardening effect in cold rolled 316L stainless steel was mainly attributed to the increase of the volume fraction of α'-martensite.