Fatigue strength of sintered and super rapid induction heated and quenched (SRIQ) compacts made of Mo prealloyed steel powder

Shigeru Unami, Yukiko Ozaki, Yoshitaka Misaka, Kengo Fukazawa

研究成果: ジャーナルへの寄稿学術誌査読

抄録

The fatigue strength of the sintered and super rapid induction heated and quenched (SRIQ) compact made of the 0.6mass% Mo-0.2 mass%Mn prealloyed steel powder has been investigated. As the effective case depth in the SRIQ material decreased, fatigue strength increased, and reached to 400MPa equivalent to two times of the carburized material in the case of 1 mm of the effective case depth. Moreover, fatigue strength of 500 MPa was obtained by double SRIQ treatment, in which specimens was quenched to the center region in the first SRIQ, and to 1 mm of the effective case depth in the subsequent treatment. The improvement in the fatigue strength can be considered to result from not only the high compressive residual stress but also the fine prior austenite grain.

本文言語英語
ページ(範囲)141-145
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
60
4
DOI
出版ステータス出版済み - 4月 2013
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 機械工学
  • 産業および生産工学
  • 金属および合金
  • 材料化学

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