Surface crack and organization of hot rolled S31803 duplex stainless steel bars

被引：0

作者：

Wu, Minghua ^{[1
]}

Liu, Zhanying ^{[1
]}

Yang, Hui ^{[1
]}

机构：

[1] YongXing Special Steel Co Ltd, Huzhou 313005, Zhejiang, Peoples R China

来源：

APPLIED MECHANICS, MATERIALS AND MANUFACTURING IV | 2014年 / 670-671卷

关键词：

duplex stainless steel; bar; microstructure; crack;

D O I：

10.4028/www.scientific.net/AMM.670-671.41

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In bar rolling of S31803 duplex stainless steel, the surface crack is easy to appear. Through the observation on the microstructure, ferrite and austenite morphology and phase ratio were analyzed. The surface cracks of S31803 duplex stainless steel bar is mainly because of the dual phase microstructure softening mechanism of different in thermal processing, and the double phase stainless steel heat plasticity decrease. When the ferrite and austenite proportion close, and the heating temperature is too high, to reduce the binding force between the grains of billet surface, easy to cause the crack surface of a bar.

引用

页码：41 / 45

页数：5