SUS316L高ひずみ付加PMプロセス材の熱処理による組織変化 Change in Structure by Heat Treatment of SUS316L HS-PM Process Material

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抄録

The high strain powder metallurgy (HS-PM) process was applied to an SUS316L gas atomized powder by 360ks mechanical milling (MM) with a planetary ball mill under an Ar atmosphere. The MM powder was annealed at 1073 K, 1173 K, 1273 K. Each structure was investigated using XRD and TEM/EDS. It was confirmed that as-MM powder consisted of an ultra fine (α+γ) microduplex structure. It was supposed that the a phase was formed as the HS-PM process by increasing free energy of the austenitic phase. Fine grain structure with its grain size of 2.3μm composed of fine carbides and γ phase was obtained when MM powder was annealed at 1073 K for 3.6 ks. It was also confirmed that these fine carbides restrain the grain growth. But at 1173 K and 1273 K, the fine carbides were not seen, so that grain size increased drastically.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 49(6), 479-485, 2002-06-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10008833448
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    6190473
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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