TiC-Coサーメットのホットプレス法について

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タイトル別名
  • Studies on Hot-Pressing of TiC-Co Cermets
  • TiC-Co サーメット ノ ホットプレスホウ ニ ツイテ

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The mechanical properties, the density and the microstructure of TiC-Co cermets containing 20 to 60 wt% of Co, hot-pressed at temperature ranging from 1550° to 1750°, and at pressure of 20 to 140 kg/cm2 for 2 to 15 min were investigated and the relationship between the properties of cermets and the hot-pressing conditions, and also the applicability of this sintering process, were described. The main results obtained were as follows: (1) For example, powders mixed with 30 to 40 wt% of Co could be hot-pressed under condition of 1700°×(20∼50) kg/cm2×5 min. (2) The values of transverse rupture strength, hardness, density and mean grain size of carbide were 120∼130 kg/mm2, 85∼87 RA, 5.4∼5.5 g/cc and about 3 μ respectively. (3) But even under such favorable conditions, squeezing out of binder was so extreme that the maximum metal binder content of cermets successfully hot-pressed was thought to be below about 30 wt%.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (10), 618-622, 1960

    公益社団法人 日本金属学会

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