Improvement of the contact fatigue strength by rolling of sintered ferrous alloy roller-1st report

Hideshi Miura, Toshiko Osada, Shota Hamamoto, Kosuke Komoto, Nobuhiro Tsuchihashi, Shigeru Unami

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Due to the continual improvements of powder metallurgy techniques, it is possible for sintered materials to compete the wrought materials even in some of the most demanding applications. However, strength of sintered materials was inadequacy, because they have a lot of pores. This paper describes a study on the effect of rolling on the contact fatigue strength of sintered ferrous alloy compacts. The effects of rolling were evaluated by measuring the hardness and porosity distributions at the vicinity of the surfaces of rolled compacts. The effects of the amount of rolling on the contact fatigue strength, and the contact fatigue damage mechanisms were also investigated. Porosity at the vicinity of the surfaces of rolled compacts was decreased with increasing the amount of radial feed, from which the contact fatigue strength of rolled compacts was improved.

本文言語英語
ページ(範囲)325-329
ページ数5
ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
56
6
DOI
出版ステータス出版済み - 6 2009

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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