IMPROVEMENT OF MECHANICAL PROPERTIES OF STEEL 1Cr13Mn13 BY ELECTROPULSING WITH HIGH DENSITY

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	IMPROVEMENT OF MECHANICAL PROPERTIES OF STEEL 1Cr13Mn13 BY ELECTROPULSING WITH HIGH DENSITY
	Zhao Yuanyun; Wang Baoquan; Guo Jingdong
通讯作者	Guo Jingdong(jdguo@imr.ac.cn)
	2009-11-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	45 期号:11 页码:1325-1329
摘要	Steel 1Cr13Mn13 was treated by electropulsing (EP) with high density after annealing+furnace cooling (AF) or solution+oil quenching+tempering (SOT). Tensile experiments show that the mechanical properties of the sample treated by SOT+EP process with a, maximum current intensity about 8.46 kA/mm(2) were greatly improved, compared with the sample only treated by SOT process, its tensile strength and elongation increased from (1250 +/- 10) MPa and (20 +/- 1)% to 1400 MPa and 53%, respectively. Metallographs show that the equiaxed grains formed under high temperature solid solution treatment were remained in both the SOT and SOT+EP samples. But the coarse lamellar martensite in the SOT sample was greatly refined after EP treatment. As the samples were treated by EP treatment, they successively underwent a rapidly "heating-cooling" process with a heating time less than 0.001 s and a cooling time less than 0.6 s, resulting in a successive phase transformation of alpha' -> gamma -> alpha'. The lamellar alpha' martensites formed during rapidly cooling process have more refined size than that of the primary martensite laths, which further enhanced the tensile ductility and tensile strength of steel 1Cr13Mn13 Moreover, the maximum value of current intensity for each EP treatment can also influence the mechanical properties of the samples by controlling the amount of the a' phase in the transformation. A higher current intensity usually produces much more amount of a' phase with smaller lamellar size and the mechanical properties of the samples are more improved. But if the maximum current intensity is much higher than an optimal range about 8.30-8.46 kA/mm(2), the sample is overheated and the mechanical properties will be lowered.
关键词	steel 1Cr13Mn13 heat treatment electropulsing mechanical property martensite refinement
资助者	National Basic Research Program of China
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2004CB6.19306]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000272502600008
出版者	SCIENCE PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/96095
专题	中国科学院金属研究所
通讯作者	Guo Jingdong
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao Yuanyun,Wang Baoquan,Guo Jingdong. IMPROVEMENT OF MECHANICAL PROPERTIES OF STEEL 1Cr13Mn13 BY ELECTROPULSING WITH HIGH DENSITY[J]. ACTA METALLURGICA SINICA,2009,45(11):1325-1329.
APA	Zhao Yuanyun,Wang Baoquan,&Guo Jingdong.(2009).IMPROVEMENT OF MECHANICAL PROPERTIES OF STEEL 1Cr13Mn13 BY ELECTROPULSING WITH HIGH DENSITY.ACTA METALLURGICA SINICA,45(11),1325-1329.
MLA	Zhao Yuanyun,et al."IMPROVEMENT OF MECHANICAL PROPERTIES OF STEEL 1Cr13Mn13 BY ELECTROPULSING WITH HIGH DENSITY".ACTA METALLURGICA SINICA 45.11(2009):1325-1329.