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Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation
Zhang, Wenfeng; Su, Qingyong; Yan, Wei; Wang, Wei; Misra, R. Devesh K.; Shan, Yiyin; Yang, Ke; kyang@imr.ac.cn
2015
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
卷号639页码:173-180
摘要The stress relaxation curves for three different hot deformation processes in the temperature range of 750-1000 degrees C were studied to develop an understanding of the precipitation behavior in a nitride-strengthened martensitic heat resistant steel. The first sharp jump in the stress relaxation plots was assumed to be indicative of the commencement of precipitation in this paper, according to the abrupt change in partial derivative sigma/partial derivative t curve and the microstructure observation of the samples. The precipitation revealed by the stress jumps in the stress relaxation plots was further studied by transmission electron microscopy (TEM), X-ray diffraction (XRD) analysis, and energy dispersive X-ray analysis (EDAX). The results confirmed that, under the deformation situation of "Group C", almost all the Nb atoms would precipitate as Nb(C,N) particles at its optimum precipitation temperature of 940 degrees C; Nearly all the C+ N atoms would be consumed in forming M23C6 particle at its nose precipitation temperature of 800 degrees C; only 60% V atoms would deposit as V(C,N) particles at its fastest nucleation temperature of 750 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
部门归属[zhang, wenfeng ; su, qingyong] guilin univ aerosp technol, guilin 541004, peoples r china ; [zhang, wenfeng ; yan, wei ; wang, wei ; shan, yiyin ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [misra, r. devesh k.] univ texas el paso, dept met & mat engn, el paso, tx 79968 usa
关键词Nitride-strengthened Heat Resistant Steel Precipitation Hot Deformation Stress Relaxation
资助者National Basic Research Program of China [2010B630800]; National Natural Science Foundation of China, China [51001102]; Natural Science Foundation of Guilin University Aerospace of Technology [YJ1405]; Guilin University Aerospace of Technology
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75064
专题中国科学院金属研究所
通讯作者kyang@imr.ac.cn
推荐引用方式
GB/T 7714
Zhang, Wenfeng,Su, Qingyong,Yan, Wei,et al. Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2015,639:173-180.
APA Zhang, Wenfeng.,Su, Qingyong.,Yan, Wei.,Wang, Wei.,Misra, R. Devesh K..,...&kyang@imr.ac.cn.(2015).Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,639,173-180.
MLA Zhang, Wenfeng,et al."Precipitation behavior in a nitride-strengthened martensitic heat resistant steel during hot deformation".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 639(2015):173-180.
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