摘要
针对200系J5A、J5两种牌号节镍型奥氏体不锈钢冷轧压延性能的差异,对比分析J5A、J5钢成分设计、组织、力学性能和马氏体含量,研究冷加工性能差异产生的机理。结果表明:由于J5A钢成分设计不合理,镍当量较低,奥氏体稳定性较差,马氏体转变点Md(30/50)高,在轧制过程中产生大量冷加工变形诱变马氏体,加工硬化程度严重,压延性能差。
For the cold-rolled drawability differences between grade J5A and grade J5 low-nickel austenitic stainless steels of Series 200 products,the composition design,metallographic structure,mechanical properties and martensitic content were analyzed and compared,and the mechanisms of cold working performance difference were studied.The results show that the unreasonable composition design of J5A steel results in lower nickel equivalent,poorer austenite stability and higher martensite transition point Md(30/50),large quantity of cold deformation induced martensite are generated during rolling,leading to severe work-hardening degree and poor drawability performance.
作者
曾垚
杨剑洪
王碧
钱学海
陈小龙
田宇航
Zeng Yao;Yang Jianhong;Wang Bi;Qian Xuphai;Chen Xiaolong;Tian Yuhang(Zhongjin Stainless Steel Co.,Ltd.,Guangxi Liuzhou Steel,Yulin Guangxi 537624,China;Technique Center,Guangxi Liuzhou Iron and Steel Group Co.,Ltd.,Liuzhou Guangxi 545000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2020年第6期163-166,共4页
Heat Treatment of Metals
关键词
节镍型不锈钢
马氏体
冷加工硬化
low-nickel stainless steel
martensite
cold work hardening
