18Cr-10Ni-0.5W-0.5Mo-0.25Cb系オーステナイト・ステンレス鋼におよぼすPの影響

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タイトル別名
  • The Effect of P on the Properties of 18Cr-10Ni-0.5W-0.5Mo-0.25Cb-Type Austenitic Stainless Steel. (Study on High Yield Strength Stainless Steel, (1))
  • 18Cr-10Ni-0.5W-0.5Mo-0.25Cbケイ オーステナイト ステンレス コウ ニ オヨボス P ノ エイキョウ

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抄録

The effect of phosphorus on the properties of 18Cr-10Ni-0.5W-0.5Mo-0.25Cb-type austenitic stainless steels with or without addition of nitrogen was studied. The results obtained were as follows: (1) Phosphorus increased the maximum hardness obtained by aging after quenching from 1150°C. The austenitic steel containing 0.23%C; 0.26%P and 0.15%N had a yield strength (0.2%) of 90 kg/mm2, elongation of 22% and low magnetic permeability of 1.003 in the hardened condition. (2) Against boiling 40%HNO3 and boiling 20%CH3CO2H solution, the austenitic steel containing phosphorus had good corrosion resistance in the hardened condition, although the corrosion loss was increased slightly with increase of the phosphorus and carbon contents.

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