射出成形したSUS304Lステンレス鋼の脱脂, 焼結過程におけるC, Oの挙動 Behavior of Carbon and Oxygen in MIM SUS304L Parts during Debinding and Sintering Process

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The expectation has been wide-spread that MIM keeps a good possibility of being an advanced powder processing technique. So far various kinds of studies have been reported for optimization of MIM process, however, there still remain several subjects to be discussed. Especially, it is the most important issue to control the amount of elements in the final products such as the carbon and oxygen. Therefore we have made a basical research about the behavior of those elements in SUS304L steels during debinding and sintering process. In this study, by varying the sintering atmosphere (vacuum pressure) and debinding temperature, we analyzed the carbon and oxygen contents in each step of heat treatment, and successfully made clear the guidlines of ruling reaction as follows;<BR>1)In the vacuum sintering process for SUS304L steels, the removal of carbon and oxygen from the compacts progresses under the dominant reaction below;<BR>2C(residual carbon)+O<SUB>2</SUB>(in furnace and gained as oxides) → 2CO↑<BR>2)The carbon and metal oxidation are enhanced over about 1200K. As the oxygen pressure is higher, metal oxidation becomes more dominant.<BR>3)During the vacuum sintering, the decrease of carbon content down to approximately 0.05mass% accelerates metal oxidation remarkedly.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(5), 416-421, 1997-05-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013783
  • 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
    4205759
  • 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  CJP引用  NDL  J-STAGE 
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