LiCl-エタノール電解液を用いたNiTi形状記憶合金の電解エッチングにおけるパルス化の効果 Pulse Electrochemical Etching of NiTi Shape Memory Alloy in LiCl-Ethanol Electrolyte

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This paper describes the effects of pulse voltage application on the basic characteristics of electrochemical etching of NiTi shape memory alloy in LiCl-ethanol solution. The influence of dissolves products on etching characteristics has been also considered. The etched surface tended to be rough in the case of pulse etching under a low pulse duty ratio, under low applied voltage and with a wide etching pattern. The etch rate was about 4μm/min in the case of DC etching ; on the other hand, the etch rate could be suppressed below 0.5μm/min in the case of pulse etching with linear dependence on the duty ratio. Etch factor (etched depth/side etching width) increased above 2.0 with a wide pattern in the case of pulse etching because the dissolved products can be diffused out from the etched groove in the OFF-time of the pulse. However, there was little drastic effect of pulse etching on the etch factor when the pattern was narrower than 60μm because of the difficulty of the diffusion. It has become apparent that the dissolved products are necessary to obtain a uniform etched surface ; however, the dissolved products inhibit the high etch factor. Suitable etching conditions should be selected according to the application.

収録刊行物

  • 表面技術 = The journal of the Surface Finishing Society of Japan

    表面技術 = The journal of the Surface Finishing Society of Japan 54(10), 693-697, 2003-10-01

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10012452799
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    6741922
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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