Effect of electropulsing on grain refinement of a medium carbon low alloy steel

被引：7
|
作者：
Yu, Wenpeng [1 ,2 ]
Qin, Rongshan [2 ]
Wu, Kaiming [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Inst Adv Steels & Welding Technol, Hubei Prov Key Lab Syst Sci Met Proc, Wuhan 430081, Peoples R China
[2] Imperial Coll London, Dept Mat, London, England
来源：
ADVANCES IN SUPERALLOYS, PTS 1 AND 2 | 2011年 / 146-147卷
基金：
中国国家自然科学基金;
关键词：
Steel; Microstructure; Pearlite; Electropulsing; Grain refinement; ELECTRIC-CURRENT PULSES; RECRYSTALLIZATION; COPPER;
D O I：
10.4028/www.scientific.net/AMR.146-147.1849
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electropulsing at room temperature was applied to a medium carbon low alloy steel 30CrMo with varying peak voltage and current. The results showed that the pearlite colony in the specimen treated with electropulsing was smaller than that without electropulsing treatment. It was found that the lamellar structure of pearlite was refined. The grain refinement of pearlite was more obvious when the applied electric current density was higher. This may be attributed to additional free energy for the nucleation of pearlite provided by electropulsing and/or the enhancement of dislocation movement caused by electropulsing.
引用
收藏
页码：1849 / +
页数：2
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