18Cr-12Ni-2.5Mo系オーステナイト・ステンレス鋼におよぼすP添加の影響

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タイトル別名
  • The Effect of P on the Properties of 18Cr-12Ni-2.5Mo-type Austenitic Stainless Steel. (Study on High-Strength Stainless Steel-II)
  • 18Cr-12Ni-2.5Moケイ オーステナイト ステンレス コウ ニ オヨボス P テンカ ノ エイキョウ

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抄録

The effect of phosphorus on the properties of 18Cr-12Ni-2.5Mo-type austenitic stainless steels was studied. The results obtained were as follows: (1) The phosphorus addition did not increase the hardness in solution-treated condition, but increased the hardness obtained by aging after solution treatment and improved the mechanical properties. It was considered that the phosphorus increased the strain energy of the austenite lattice which accelerated the precipitation of chromium-carbide particles within austenite grains and hence produced hardening. (2) The austenitic steel containing 0.24%C, 0.2%P, 12%Ni, 17.62%Cr and 2.46%Mo had a yield strength (0.2%) of 81 kg/mm2, elongation of 21% and low magnetic permeability of 1.004 in the hardened condition. (3) Against boiling 40%HNO3 and boiling 20%CH3CO2H solution, the austenitic steel containing 0.2% phosphorus had good corrosion resistance in the hardened condition.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (2), 126-130, 1962

    公益社団法人 日本金属学会

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