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作者:

Dai, Xiaoqin (Dai, Xiaoqin.) | Xie, Min (Xie, Min.) | Zhou, Shengfeng (Zhou, Shengfeng.) | Wang, Chunxia (Wang, Chunxia.) | Gu, Menghao (Gu, Menghao.) | Yang, Jiaoxi (Yang, Jiaoxi.) | Li, Zhengyang (Li, Zhengyang.)

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EI Scopus SCIE

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:

Microstructure Liquid phase separation Cu-Fe Magnetic properties Immiscible alloy

作者机构:

  • [ 1 ] [Dai, Xiaoqin]Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 2 ] [Xie, Min]Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 3 ] [Zhou, Shengfeng]Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China
  • [ 4 ] [Wang, Chunxia]Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
  • [ 5 ] [Gu, Menghao]Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
  • [ 6 ] [Yang, Jiaoxi]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Li, Zhengyang]Chinese Acad Sci, Inst Mech, Beijing 10090, Peoples R China

通讯作者信息:

  • [Dai, Xiaoqin]Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China;;[Zhou, Shengfeng]Tianjin Polytech Univ, Laser Technol Inst, Tianjin 300387, Peoples R China;;[Yang, Jiaoxi]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China;;[Li, Zhengyang]Chinese Acad Sci, Inst Mech, Beijing 10090, Peoples R China

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来源 :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

年份: 2018

卷: 740

页码: 194-202

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:260

JCR分区:1

被引次数:

WoS核心集被引频次: 37

SCOPUS被引频次: 39

ESI高被引论文在榜: 0 展开所有

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