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Study on lotus-type porous copper electroplated with a Ni coating on inner surface of pores

机译：孔内表面镀镍的莲花型多孔铜的研究

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摘要

Deposition of Ni coating on inner surface of pores was attempted by electroplating for lotus-type porous copper with pore size of 0.6 mm and pore length of 6 mm. The surface morphology, thickness, thickness distribution along the pore length, and phase composition of the coating were characterized. It is proven that the Ni coating with a polycrystalline structure can be deposited on the inner surface of the pores with length/diameter of 10 for lotus-type porous copper by agitating the electroplating solution properly during the process. It is indicated that the coating thickness distributes uniformly along the pore depth and is about 4-5 |xm. Furthermore, the mechanical properties including vicker hardness, compressive yield strength and absorbed energy ability of the electroplated porous copper were evaluated. It is found that the mechanical properties are improved significantly after depositing the nickel coating inside pores of the lotus-type porous copper. Among them, 0.2% yield stress increases from 22.96 to 30.15 MPa, while absorbed energy per volume from 60.83 to 96.01 MJ/m3 when compressed to strain of 80%, which is attributed mainly to the Ni coating as an obstacle to dislocation slip during deformation and its strengthening effect for the higher strength, and the good adhesion to the pore wall of the porous copper.
机译：通过电镀孔径为0.6mm，孔径为6mm的莲花型多孔铜，试图在孔的内表面上沉积Ni涂层。表征了涂层的表面形态，厚度，沿孔长度的厚度分布以及相组成。业已证明，通过在加工过程中适当搅拌电镀液，可以在长/直径为10的莲花型多孔铜的孔的内表面上沉积具有多晶结构的Ni涂层。结果表明，涂​​层厚度沿孔深均匀分布，约为4-5 | xm。此外，评价了电镀多孔铜的包括维氏硬度，压缩屈服强度和吸收能的机械性能。发现在将镍涂层沉积在莲花型多孔铜的孔内之后，机械性能得到显着改善。其中，当压缩至80％应变时，0.2％的屈服应力从22.96 MPa增加到30.15 MPa，而单位体积的吸收能从60.83到96.01 MJ / m3，这主要归因于Ni涂层是变形过程中位错滑移的障碍并具有较高的强度和对多孔铜孔壁的良好附着力。

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  • 来源
    《Applied Surface Science》 |2013年第1期|772-778|共7页
  • 作者

    Hao Du; Guihong Song; Hideo Nakajima; Yanhui Zhao; Jinquan Xiao; Tianying Xiong;

  • 作者单位

    Division of Surface Engineering of Materials, Institute of Metal Research, 72 Wenhua Road, Shenyang 110016, PR China,The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan;

    School of Material Science and Technology, Shenyang University ofTechnology, 111 Shenliao West Road, Shenyang 110870, PR China;

    The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan;

    Division of Specialized Materials and Devices, Institute of Metal Research, 72 Wenhua Road, Shenyang 110016, PR China;

    Division of Surface Engineering of Materials, Institute of Metal Research, 72 Wenhua Road, Shenyang 110016, PR China;

    Division of Surface Engineering of Materials, Institute of Metal Research, 72 Wenhua Road, Shenyang 110016, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    lotus-type porous copper; coating; inner surface of pore; mechanical properties;

    机译：莲花型多孔铜;涂层;孔的内表面机械性能;

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