The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel

doi:10.1007/s12540-018-0103-x

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	The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel
	Ma, Xiaoping; Li, Dianzhong
通讯作者	Ma, Xiaoping(xpma@imr.ac.cn)
	2018-07-01
发表期刊	METALS AND MATERIALS INTERNATIONAL
ISSN	1598-9623
卷号	24 期号:4 页码:886-893
摘要	The microstructures, segregation and cooling curve were investigated in the directional solidification of 20SiMnMo5 steel. The typical characteristic of faceted growth is identified. The microstructures within the single cellular and within the single dendritic arm, together with the contradictive segregation distribution against the cooling curve, verify the discrete crystal growth in multi-scales. Not only the single cellular/dendritic arm but also the single martensite zone within the single cellular/dendritic arm is produced by the discrete growth. In the viewpoint of segregation, the basic domain following continuous growth has not been revealed. Along with the multi-scale faceted discrete growth, the phase differentiation happens for both the solid and liquid. The differentiated liquid phases appear and evolve with different sizes, positions, compositions and durations. The physical mechanism for the faceted discrete growth is qualitatively established based on the nucleation of new faceted steps induced by the composition gradient and temperature gradient.
关键词	Crystal morphology Segregation Discrete crystal growth Faceted interfaces Phase differentiation
DOI	10.1007/s12540-018-0103-x
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000435016700023
出版者	KOREAN INST METALS MATERIALS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128625
专题	中国科学院金属研究所
通讯作者	Ma, Xiaoping
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaoping,Li, Dianzhong. The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel[J]. METALS AND MATERIALS INTERNATIONAL,2018,24(4):886-893.
APA	Ma, Xiaoping,&Li, Dianzhong.(2018).The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel.METALS AND MATERIALS INTERNATIONAL,24(4),886-893.
MLA	Ma, Xiaoping,et al."The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel".METALS AND MATERIALS INTERNATIONAL 24.4(2018):886-893.