高クロム工具鋼の焼歪におよぼす鋼材方向性の影響

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タイトル別名
  • Effect of Directionality on Quenching-Deformation of High-Cr Steels
  • コウクロム コウグ コウ ノ ショウワイ ニ オヨボス コウザイ ホウコウセイ ノ エイキョウ

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抄録

By using specimens of 8 kinds of melted high Cr-steels containing a structure within α+η carbide and specimens of commercial JIS SKD 1 and SKD 12 steels, some investigation was carried out by measurements of the length-change with a Zeiss U.M.M. and a thermal dilatometer, hardness as well as by microscopic observation. The experimental results obtained were as follows: (1) With specimens containing the less C, the less Cr and the less carbide, the expansion due to quenching was the more marked in the transversal specimens than in the longitudinal specimens. On the contrary, with steel specimens containing more C and more Cr, the expansion behavior was reversed. And e.g. with steel specimens containing about 1%C and 7%Cr in the case of oil-quenching from 950°C, the quenching-deformation of longitudinal and transversal specimens becomes equal. (2) From the result of dilatometric method, in existence of various phenomena that were presumed to be caused by carbide particles present in the structure and arranged in the rolling direction was clearly shown.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (7), 429-433, 1962

    公益社団法人 日本金属学会

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