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The Faceted Discrete Growth and Phase Differentiation During the Directional Solidification of 20SiMnMo5 Steel
Ma, Xiaoping; Li, Dianzhong
Corresponding AuthorMa, Xiaoping(xpma@imr.ac.cn)
2018-07-01
Source PublicationMETALS AND MATERIALS INTERNATIONAL
ISSN1598-9623
Volume24Issue:4Pages:886-893
AbstractThe 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.
KeywordCrystal morphology Segregation Discrete crystal growth Faceted interfaces Phase differentiation
DOI10.1007/s12540-018-0103-x
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000435016700023
PublisherKOREAN INST METALS MATERIALS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128627
Collection中国科学院金属研究所
Corresponding AuthorMa, Xiaoping
AffiliationChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
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.
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