The Residual Stresses of 1%C Steel and 1%C, 1%Cr and 1%Mo Steel by Quenching, Subzero Quenching and Tempering

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  • 1%C鋼および1%C, 1%Cr, 1%Mo鋼の熱処理による残留応力
  • 1 C コウ オヨビ 1 C , 1 Cr , 1 Mo コウ ノ ネツ ショリ ニ ヨル ザンリュウ オウリョク

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Abstract

The residual stresses in the two commercial steels after water,oil and subzero quenching and tempering were studied. The steels containing 1%C, and 1%C, 1%Cr and 1%Mo were used. The form and dimension of residual stresses were decided almost according to the thermal career from heating temperature of hardening to room temperature, and not affected by subzero treatment while the hardness was decidedly increased. A marked decrease of residual stresses was seen by the decomposition of retained austenite but they did not disappear completely even by tempering at 550°C for 1 hours.

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