Color and Tarnishing of CuMn15Zn15Al1 Alloy

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著者

    • Zhang Yu-ping ZHANG Yu-ping
    • Key Laboratory of the Ministry of Education for High Temperature Materials and Testing, Shanghai Jiaotong University
    • Zhang Jin-xu ZHANG Jin-xu
    • Key Laboratory of the Ministry of Education for High Temperature Materials and Testing, Shanghai Jiaotong University
    • Wu Jian-sheng WU Jian-sheng
    • Key Laboratory of the Ministry of Education for High Temperature Materials and Testing, Shanghai Jiaotong University

抄録

This paper reports the color and the tarnishing behavior of CuMn15Zn15Al1 alloy in a synthetic sweat medium quantitatively. German silver BZn15–20–0.3 was selected for comparison. The results indicated that CuMn15Zn15Al1 has a silvery color similar to BZn15–20–0.3 but the tarnishing resistance of CuMn15Zn15Al1 in sweat is not as good as that of BZn15–20–0.3. For CuMn15Zn15Al1, tarnishing in sweat results in the decrease of <I>L</I><SUP>∗</SUP> values and increase of <I>a</I><SUP>∗</SUP> values, when both <I>L</I><SUP>∗</SUP> and <I>a</I><SUP>∗</SUP> are parameters in the CIE system to express the color. In other words, the color gets darker and redder after the sweat test. The corrosion layers were analyzed by means of Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS). The tarnishing products primarily consist of Cu<SUB>2</SUB>O, ZnO and Mn oxides. Some chlorides and hydroxides are detected on the outmost surface.

収録刊行物

  • Materials transactions

    Materials transactions 43(12), 3242-3246, 2002-12-01

    公益社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10012329673
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    6395736
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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