高クロム白鋳鉄のサンド・エロージョン速度のスラリー速度依存性

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タイトル別名
  • Slurry Speed Dependence of Sand-Erosion Rate in High-Chromium White Cast Iron
  • コウ クロム ハクチュウテツ ノ サンド エロージョン ソクド ノ スラリー

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抄録

The relation between eroding rate (Wk) and slurry speed (V) was given by Wk=KVn (K: constant) on sand-erosion of 15%Cr and 15%Cr-3%Ni eutectic white cast irons. The experimental expression of the eroding rate, which was obtained through the slurry temperature and slurry speed dependences of the sand-erosion characteristics, was in good agreement with the measured eroding rates. The erosion behavior and the eroded sureface structure suggested the change of the eroding mechanism at low and high-slurry speed ranges. The change of the eroding behavior was assumed to be related to the yield stress of the specimens. However, the applied stress due to particle collision at the change of the eroding behavior was calculated to be much higher than the yield stress. This difference was speculated to be due to the composite microstructure of eutectic carbide and the matrix in the high chromium white cast irons.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 57 (3), 312-319, 1993

    公益社団法人 日本金属学会

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