粗粒WC-Co合金の性質に及ぼすVC添加の影響 Some Properties of Coarse-grained WC-Co Alloy Affected by VC Addition

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Microstructures and mechanical properties of the coarse-grained low-carbon WC-lomass%Co alloy having carbide grain size of 1.5-2.0 μm were mainly studied in relation to the amount of additional VC up to 5mass% in binder. It was found that the carbide grain size became uniform with increasing the amount of VC, because of suppression of the anomalous grain growth of WC. It was also found that transverse-rupture strength of the alloy was improved with increasing the amount of VC up to about 2-3mass%; however, it sharply decreased with additional amount of VC over about 3mass%. The phenomenon of this strength decrease, being never observed in micro-grained alloy, was attributed to the fact that (W, V)C phases crystallized so largly in the size in coarse-grained alloy, in contrast to micro-grained alloy, that it easily acted as a fracture source.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(1), 102-105, 1997-01-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013366
  • 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
    4118706
  • 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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