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Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

文献类型：期刊论文

作者Ma, Tingwei1,3; Hao, Xianchao2; Wang, Ping1
刊名METALS
出版日期2020-09-01
卷号10期号:9页码:17
关键词15Cr12MoVWN steel tensile properties precipitate dislocation density microstructure
DOI10.3390/met10091271
通讯作者Hao, Xianchao(xchao@imr.ac.cn) ; Wang, Ping(wping@epm.neu.edu.cn)
英文摘要In this study, the phase transformation temperature of 15Cr12MoVWN ferritic/martensitic steel was determined by differential scanning calorimetry to provide a theoretical basis for the design of a heat treatment process. An orthogonal design experiment was performed to investigate the relationship between microstructure and heat treatment parameters, i.e., normalizing temperature, cooling method and tempering temperature by evaluating the room-temperature and elevated-temperature tensile properties, and the optimum heat treatment parameters were determined. It is shown that the optimized heat treatment process was composed of normalizing at 1050 degrees C followed by air cooling to room temperature and tempering at 700 degrees C. Under the optimum heat treatment condition, the room-temperature tensile properties were 1014 MPa (UTS), 810.5 MPa (YS) and 18.8% (elongation), while the values are 577.5 MPa (UTS), 469 MPa (YS) and 39.8% (elongation) tested at 550 degrees C. The microstructural examination shows that the strengthening contributions from microstructural factors were the martensitic lath width, dislocations, M23C6, MX and grain boundaries of prior austenite grain (PAG) in a descending order. The main factors influencing the tensile strength of 15Cr12MoVWN steel were the martensitic lath width and dislocations.
资助项目National Key Technology R&D Program, China[149601A-A033] ; Natural Science Foundation Guidance Plan of Liaoning Province[2019-ZD-0362]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000580675300001
出版者MDPI
资助机构National Key Technology R&D Program, China ; Natural Science Foundation Guidance Plan of Liaoning Province
源URL[http://ir.imr.ac.cn/handle/321006/140980]  
专题金属研究所_中国科学院金属研究所
通讯作者Hao, Xianchao; Wang, Ping
作者单位1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
3.Yingkou Inst Technol, 46 Bowen Rd, Xishi Dist 115014, Yingkou, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Tingwei,Hao, Xianchao,Wang, Ping. Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel[J]. METALS,2020,10(9):17.
APA Ma, Tingwei,Hao, Xianchao,&Wang, Ping.(2020).Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel.METALS,10(9),17.
MLA Ma, Tingwei,et al."Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel".METALS 10.9(2020):17.

入库方式： OAI收割

来源：金属研究所

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