Influence of As and Cu-As on hot ductility of C-Mn steels

被引：0

作者：

Xin, Wen-Bin ^{[1
,2
]}

Song, Bo ^{[1
,2
]}

Hu, Chun-Lin ^{[1
,2
]}

Song, Ming-Ming ^{[1
,2
]}

Sun, Gui-Lin ^{[1
,2
]}

机构：

[1] State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, China

[2] School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, China

来源：

Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | 2014年 / 35卷 / 07期

关键词：

Austenite - Ductile fracture - Ferrite - Tensile testing - Manganese alloys - Tensile strength - Arsenic - Segregation (metallography) - Grain boundaries - Copper - Temperature;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to investigate the effect of individual element As and Cu-As coexist on hot ductility, tensile tests were carried out on C-Mn steel containing 0.16%As and 0.17%Cu+0.075%As at 700 to 1100 by a Gleeble-1500 thermal simulator. Results show that Cu and As in the tested steels can cause the migration of the low ductility region III to higher temperature and has little impact on tensile strength of the steel. The formation of proeutectoid ferrite film along the austenite grain boundaries in the austenite + ferrite two phases range induces intergranular fracture. However, the C-Mn steel containing 0.16%As shows ductile fracture mode at 700 and plastic restored because As promotes the formation of ferrite. Intergranular fracture in austenite single phase low temperature region is caused by the segregation of Cu and As at the austenite grain boundaries.

引用

页码：69 / 74