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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
Source PublicationJOURNAL IRON STEEL RESEARCH EDITORIAL BOARD
ISSN1006-706X
Volume24Issue:8Pages:858-864
AbstractThe 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.
description.department[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
KeywordP92 Steel M23c6 Carbide Aging Ripening
Subject AreaMetallurgy & Metallurgical Engineering
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79166
Collection中国科学院金属研究所
Corresponding AuthorYan, W (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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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