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Formation mechanism and improved properties of Cu95Fe5 homogeneous immiscible composite coating by the combination of mechanical alloying and laser cladding
Dai XQ; Xie M; Zhou SF; Wang CX; Gu MH; Yang JX; Li ZY(李正阳)
2018-04-05
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
卷号740页码:194-202
ISSN0925-8388
摘要In order to improve the homogeneity of spherical Fe-rich particles within the Cu-rich matrix, the Cu95Fe5 (wt%) immiscible composite coating has been produced by the combination of mechanical alloying and laser cladding. The results show that the milled composite powder presents a polygonal morphology and is mainly composed of face-centered-cubic (fcc)-Cu solid solution. The demixing or delimitation is eliminated in the immiscible composite coating produced by laser cladding and large amounts of spherical alpha-Fe particles are dispersed within the epsilon-Cu matrix as a result of liquid phase separation (LPS). The size of the Fe-rich particles measured is in radius of similar to 1.5 mu m, which is much smaller than the calculated critical radius (similar to 2.3 mu m), confirming that the alpha-Fe particles containing a supersaturated Cu are driven by the dominant mechanism of Marangoni motion. Compared to Brass, the immiscible composite coating exhibits the improved homogeneous microhardness (153HV(0.2)) and higher corrosion resistance, as well as a saturated magnetization of similar to 9.19 emu/g and low coercivity of similar to 9.25 Oe. (C) 2018 Elsevier B.V. All rights reserved.
关键词Immiscible alloy Liquid phase separation Cu-Fe Microstructure Magnetic properties
DOI10.1016/j.jallcom.2018.01.007
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000425494200025
关键词[WOS]DROPLET SPINODAL DECOMPOSITION ; CO-FE ALLOYS ; PHASE-SEPARATION ; CU ALLOYS ; MICROSTRUCTURE EVOLUTION ; SOLIDIFICATION ; AMORPHIZATION ; PROTECTION ; SUBSTRATE ; CORROSION
WOS研究方向Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China [51471084] ; Outstanding Youth Foundation of Jiangxi Province [20162BCB23039]
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力学所作者排名5+
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77817
专题先进制造工艺力学重点实验室
作者单位1.Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
3.Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
4.Chinese Acad Sci, Inst Mech, Beijing 10090, Peoples R China
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Dai XQ,Xie M,Zhou SF,et al. Formation mechanism and improved properties of Cu95Fe5 homogeneous immiscible composite coating by the combination of mechanical alloying and laser cladding[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,740:194-202.
APA Dai XQ.,Xie M.,Zhou SF.,Wang CX.,Gu MH.,...&李正阳.(2018).Formation mechanism and improved properties of Cu95Fe5 homogeneous immiscible composite coating by the combination of mechanical alloying and laser cladding.JOURNAL OF ALLOYS AND COMPOUNDS,740,194-202.
MLA Dai XQ,et al."Formation mechanism and improved properties of Cu95Fe5 homogeneous immiscible composite coating by the combination of mechanical alloying and laser cladding".JOURNAL OF ALLOYS AND COMPOUNDS 740(2018):194-202.
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