Ni-P/Zn-Ni多層膜のビッカース硬さと耐摩耗性に及ぼす層厚さとアニールの影響

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タイトル別名
  • Effects of Layer Thickness and Annealing on Vickers Hardness and Wear Resistance in Ni-P / Zn-Ni Multilayered Films
  • Ni-P/Zn-Ni タソウマク ノ ビッカース カタサ ト タイマモウセイ ニ オヨボス ソウ アツサ ト アニール ノ エイキョウ

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<p>We fabricated Ni-P / Zn-Ni multilayered structures on a steel substrate using alternate electroplating with two electrolyte baths. We prepared two series of the multilayered structures to elucidate the effects of component layer thickness and annealing on hardness and wear resistance. In one series, the Ni-P and Zn-Ni layers had equal thicknesses of 200 nm, 500 nm, and 1000 nm, whereas the other series had constant 500 nm Ni-P layer thickness. Then, the electroplated films were annealed at 573 K for 2 hr. For all multilayered structures, the annealing increased the hardness and wear resistance because of Ni-P layer hardening. Among the multilayers having equal component thicknesses, the 500-nm layer thickness exhibited the highest hardness and wear resistance. In the annealed multilayers having constant 500 nm Ni-P thickness, the hardness and wear resistance increased concomitantly with decreasing Zn-Ni layer thickness. Our key finding is that the annealed multilayers consisting of 500-nm Ni-P and 100-nm Zn-Ni layers exhibited three times higher wear resistance than an annealed Ni-P film.</p>

収録刊行物

  • 表面技術

    表面技術 70 (2), 115-121, 2019-02-01

    一般社団法人 表面技術協会

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