Effect of tempering temperature on the microstructure and mechanical properties in mooring chain steel

被引：48

作者：

Cheng, X. Y. ^{[1
,2
]}

Zhang, H. X. ^{[2
]}

Li, H. ^{[2
]}

Shen, H. P. ^{[2
]}

机构：

[1] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 636卷

基金：

中国国家自然科学基金;

关键词：

Tensile property; Strain-hardening exponent; Hydrogen-induced embrittlement; EBSD; Mooring chain steel; STRESS-CORROSION CRACKING; HYDROGEN EMBRITTLEMENT; STRENGTH; PRECIPITATION; BEHAVIOR; METALS;

D O I：

10.1016/j.msea.2015.03.102

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The tensile behavior of a mooring chain steel was investigated after tempering at 560 degrees C, 600 degrees C, 640 degrees C temperatures. With increasing tempering temperature, the steel displayed not only a decrease in strength, but also a slight increase in strain-hardening ability between the proof and ultimate stress. In the meantime, an upper yield point appeared at 640 degrees C tempered samples. The susceptibility to hydrogen-induced embrittlement reduced on the same precharging hydrogen condition as tempering temperature elevated. These changes of tensile behavior were elucidated from their microstructure variation observed by transmission electron microscopy (TEM) and electron back-scattered diffraction (EBSD). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：164 / 171

页数：8

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