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Ripening behavior of M23C6 carbides in P92 steel during aging at 800 degrees C
Yang, Xu; Liao, Bo; Xiao, Fu-ren; Yan, Wei; Shan, Yi-yin; Yang, Ke; Yan, W (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2017-08-01
发表期刊JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD
ISSN1006-706X
卷号24期号:8页码:858-864
摘要The rapid coarsening of the M23C6 carbides has been held responsible for the creep fracture in 9-12Cr martensitic heat resistant steels. A commercial P92 steel was subjected to thermal aging at a high temperature of 800 degrees C to investigate the ripening behavior of the M23C6 carbides. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to characterize the microstructure evolution, especially the ripening process of the M23C6 carbides. The new concept of the effective mean size, dependent on the critical radius, was introduced to correct the measured mean size and then the Ostwald theory was applied to describe the ripening behavior of the M23C6 carbides. The ripening of the M23C6 carbides was revealed to he grain boundary diffusion controlled.; The rapid coarsening of the M23C6 carbides has been held responsible for the creep fracture in 9-12Cr martensitic heat resistant steels. A commercial P92 steel was subjected to thermal aging at a high temperature of 800 degrees C to investigate the ripening behavior of the M23C6 carbides. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to characterize the microstructure evolution, especially the ripening process of the M23C6 carbides. The new concept of the effective mean size, dependent on the critical radius, was introduced to correct the measured mean size and then the Ostwald theory was applied to describe the ripening behavior of the M23C6 carbides. The ripening of the M23C6 carbides was revealed to he grain boundary diffusion controlled.
部门归属[yang, xu ; liao, bo ; xiao, fu-ren] yanshan univ, coll mat sci & engn, qinhuangdao 066004, hebei, peoples r china ; [yang, xu ; yan, wei ; shan, yi-yin ; yang, ke] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词P92 Steel M23c6 Carbide Aging Ripening
学科领域Metallurgy & Metallurgical Engineering
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/321006/79166
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.
推荐引用方式
GB/T 7714
Yang, Xu,Liao, Bo,Xiao, Fu-ren,et al. Ripening behavior of M23C6 carbides in P92 steel during aging at 800 degrees C[J]. JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD,2017,24(8):858-864.
APA Yang, Xu.,Liao, Bo.,Xiao, Fu-ren.,Yan, Wei.,Shan, Yi-yin.,...&Yan, W .(2017).Ripening behavior of M23C6 carbides in P92 steel during aging at 800 degrees C.JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD,24(8),858-864.
MLA Yang, Xu,et al."Ripening behavior of M23C6 carbides in P92 steel during aging at 800 degrees C".JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD 24.8(2017):858-864.
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