Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod

IMR OpenIR

	Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod
	Tian, Jia-long; Wang, Wei; Yan, Wei; Jiang, Zhou-hua; Shan, Yi-yin; Yang, Ke; Yan, W (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Yan, W (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110011, Liaoning, Peoples R China.
	2017-07-01
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
卷号	24 期号:7 页码:718-723
摘要	The segregation of Cu and Ni in a 17-4PH stainless steel piston rod has been confirmed to he responsible for the cracking after heat treatment. Further investigation showed that the segregation zone was composed of three layers, namely the fine grain martensitic layer, the coarse grain martensitic layer and the coarse grain austenitic layer from the matrix to the crack surface. Three button ingots with the same chemical compositions as those three layers have been prepared to evaluate the grain size distribution, microstructure and mechanical properties. The effects of Cu and Ni segregation on the microstructures of those three layers have been explored by thermodynamic calculation. Based on the microstructure and mechanical properties results, an intensive understanding of the cracking in the segregation zone was therefore reached.; The segregation of Cu and Ni in a 17-4PH stainless steel piston rod has been confirmed to he responsible for the cracking after heat treatment. Further investigation showed that the segregation zone was composed of three layers, namely the fine grain martensitic layer, the coarse grain martensitic layer and the coarse grain austenitic layer from the matrix to the crack surface. Three button ingots with the same chemical compositions as those three layers have been prepared to evaluate the grain size distribution, microstructure and mechanical properties. The effects of Cu and Ni segregation on the microstructures of those three layers have been explored by thermodynamic calculation. Based on the microstructure and mechanical properties results, an intensive understanding of the cracking in the segregation zone was therefore reached.
部门归属	[tian, jia-long ; jiang, zhou-hua] northeastern univ, sch mat & met, shenyang 110819, liaoning, peoples r china ; [tian, jia-long ; wang, wei ; yan, wei ; shan, yi-yin ; yang, ke] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [wang, wei ; yan, wei ; shan, yi-yin] chinese acad sci, inst met res, key lab nucl mat & safety assessment, shenyang 110011, liaoning, peoples r china
关键词	17-4ph Stainless Steel Piston Rod Segregation Thermodynamic Calculation Crack
学科领域	Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China [51201160]; Youth Innovation Promotion Association of Chinese Academy of Sciences [2017233]; Science and Technology Innovation Foundation from Institute of Metal Research, Chinese Academy of Sciences [2015-ZD04]
收录类别	SCI
语种	英语
WOS记录号	WOS:000405116000008
引用统计	被引频次：5[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/321006/78058
专题	中国科学院金属研究所
通讯作者	Yan, W (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Yan, W (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110011, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Tian, Jia-long,Wang, Wei,Yan, Wei,et al. Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2017,24(7):718-723.
APA	Tian, Jia-long.,Wang, Wei.,Yan, Wei.,Jiang, Zhou-hua.,Shan, Yi-yin.,...&Yan, W .(2017).Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,24(7),718-723.
MLA	Tian, Jia-long,et al."Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 24.7(2017):718-723.