Effect of Deformation Temperature on the Microstructure and Mechanical Properties of High-Strength Low-Alloy Steel During Hot Compression

被引：6

作者：

Zhao, Chengzhi ^{[1
,2
]}

Kingkam, Wilasinee ^{[1
]}

Ning, Li ^{[1
]}

Zhang, Hexin ^{[1
,2
]}

Li Zhiming ^{[3
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Heilongjiang, Peoples R China

[3] Harbin Engn Univ, Coll Power & Energy Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2018年 / 27卷 / 08期

关键词：

flow stress; high-strength low-alloy steel; polygonal ferrite; microstructure; STRAIN-RATE SENSITIVITY; DYNAMIC RECRYSTALLIZATION; MICROALLOYED STEEL; PIPELINE STEEL; ACTIVATION VOLUME; STAINLESS-STEEL; FERRITIC STEEL; 42CRMO STEEL; GRAIN-SIZE; HSLA STEEL;

D O I：

10.1007/s11665-018-3510-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and mechanical properties of high-strength low-alloy steel were investigated at deformation temperatures of 800-1100 degrees C and strain rates of 0.1-10 s(-1) using an MMS-200 thermal mechanical simulator. The results indicated that the increased deformation processes observed between the starting and finishing temperatures during hot compression testing caused a polygonal ferrite transformation in the material. The polygonal ferrite grain sizes increased with increasing transformation temperatures and gradually grew larger at higher deformation temperatures. Widmanstatten ferrite and acicular ferrite were also formed at high temperatures from 1000-1100 degrees C, which accordingly led to an increase in Vickers microhardness. In addition, the flow stress in the material increased with an increase in the strain and a decrease in the deformation temperature.

引用

页码：4129 / 4139

页数：11

共 40 条

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