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The healing of quenched crack in 1045 steel under electropulsing

Published online by Cambridge University Press:  31 January 2011

Zhou Yizhou ,
Zeng You ,
He Guanhu  and
Zhou Benlian
Zhou Yizhou*
Affiliation:
Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
Zeng You
Affiliation:
Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
He Guanhu
Affiliation:
Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
Zhou Benlian
Affiliation:
Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, People's Republic of China
*
a)Address all correspondence to this author. e-mail: zhouyizhou@hotmail.com
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Abstract

Specimens of 1045 steel with quenched crack were treated under electropulsing. Scanning electron microscopy was employed to examine the change of specimens before and after the treatment. The results showed that the crack can be healed under electropulsing without melting, and the healing could be produced within a very short time. The original microstructure of specimens was not changed during the healing. It is thought that the temperature and the transient thermal compressive stress caused by high-rate heating are the main factors causing the healing of the crack.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 1 , January 2001 , pp. 17 - 19
Copyright
Copyright © Materials Research Society 2001

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References

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