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Surface nanocrystallization of Cu-Cr alloy by a high power density continuous laser beam
Zhang LT(张犁天); Yu G(虞钢); He XL(何秀丽); Li SX(李少霞); Tian CX(田崇鑫)
Source PublicationMATERIALS LETTERS
2019-02-15
Volume237Pages:216-219
ISSN0167-577X
AbstractA nanostructured surface layer of similar to 300 mu m thickness was fabricated on Cu-30Cr (wt%) hypereutectic alloy by a continuous laser beam with high power density (1.08 x 10(7) W/cm(2)). The average grain size of Cr-rich particles was refined to similar to 40 nm, and the solid solubility limit of Cr in Cu was extended to 1.96 at. %. Experimental results show that the dispersion of nano-sized Cr-rich spheroids in Cu-rich matrix was attributed to the Brownian motion of Cr-rich spheroids, and the high cooling rate (5.75 x 10(6) K/s) during liquid phase separation which inhibits the collisions between Cr-rich spheroids. (C) 2018 Published by Elsevier B.V.
KeywordLaser surface melting Cu-Cr alloy Solidification Microstructure Surface nanocrystallization
DOI10.1016/j.matlet.2018.11.108
Indexed BySCI ; EI
Language英语
WOS IDWOS:000454609700055
WOS KeywordSTAINLESS-STEEL ; MICROSTRUCTURE ; EVOLUTION
WOS Research AreaMaterials Science, Multidisciplinary ; Physics, Applied
WOS SubjectMaterials Science ; Physics
Funding Organizationinstrument developing project of the Chinese Academy of Sciences [yz201636] ; plan of Beijing Municipal Commission of Science and Technology [Z181100003818015]
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78463
Collection先进制造工艺力学重点实验室
Affiliation1.{Zhang, Litian、Yu, Gang、He, Xiuli、Li, Shaoxia、Tian, Chongxin} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
2.{Zhang, Litian、He, Xiuli、Tian, Chongxin} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.{Yu, Gang} Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang LT,Yu G,He XL,et al. Surface nanocrystallization of Cu-Cr alloy by a high power density continuous laser beam[J]. MATERIALS LETTERS,2019,237:216-219.
APA 张犁天,虞钢,何秀丽,李少霞,&田崇鑫.(2019).Surface nanocrystallization of Cu-Cr alloy by a high power density continuous laser beam.MATERIALS LETTERS,237,216-219.
MLA 张犁天,et al."Surface nanocrystallization of Cu-Cr alloy by a high power density continuous laser beam".MATERIALS LETTERS 237(2019):216-219.
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