Dissolution of M23C6 and New Phase Re-Precipitation in Fe Ion-Irradiated RAFM Steel

doi:10.3390/met8050349

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	Dissolution of M23C6 and New Phase Re-Precipitation in Fe Ion-Irradiated RAFM Steel
	Jin, SX; Song LG(宋力刚); Jin SX(靳硕学); Yang, Z; Guo, LP; You, L; Zhang, WP; Song, LG
刊名	METALS
	2018
卷号	8 期号:5 页码:349
关键词	M23C6 ion irradiation M6C amorphization RAFM steels
ISSN号	2075-4701
DOI	10.3390/met8050349
文献子类	Article
英文摘要	The M23C6 precipitate plays a major role in preventing the sliding of the grain boundary and strengthens the matrix in the reduced-activation ferritic/martensic (RAFM) steel. However, its stability might be reduced under irradiation. The microstructural instability of the M23C6 precipitates in the RAFM steels irradiated at 300 degrees C with Fe ions up to a peak dose of 40 dpa was investigated by transmission electron microscopy. A "Core/Shell" morphology was found for the pre-existing M23C6 and a large number of new small phases appeared in parallel near the periphery of the precipitates after irradiation. The loss of crystallinity of the M23C6 periphery due to the dissolution of carbon atoms into the interface (C-rich "Shell") actually decreased the size of the Cr-rich "Core". The new phase that formed around the pre-existing precipitates was M6C (Fe3W3C), which was formed through the carbide transformation of M23C6 to M6C.
WOS关键词	ACTIVATION FERRITIC/MARTENSITIC STEELS ; MEV PROTON IRRADIATION ; MARTENSITIC STEEL ; MECHANICAL-PROPERTIES ; FERRITIC STEELS ; DIN 1.4926 ; DEGREES-C ; MICROSTRUCTURE ; EVOLUTION ; STABILITY
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000435109300059
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286036]
专题	中国科学院高能物理研究所_中国散裂中子源高能物理研究所_多学科研究中心
通讯作者	Jin SX(靳硕学)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Jin, SX,Song LG,Jin SX,et al. Dissolution of M23C6 and New Phase Re-Precipitation in Fe Ion-Irradiated RAFM Steel[J]. METALS,2018,8(5):349.
APA	Jin, SX.,宋力刚.,靳硕学.,Yang, Z.,Guo, LP.,...&Song, LG.(2018).Dissolution of M23C6 and New Phase Re-Precipitation in Fe Ion-Irradiated RAFM Steel.METALS,8(5),349.
MLA	Jin, SX,et al."Dissolution of M23C6 and New Phase Re-Precipitation in Fe Ion-Irradiated RAFM Steel".METALS 8.5(2018):349.