Effects of nickel or copper addition on mechanical properties of sintered and carburized compacts made of molybdenum hybrid-alloyed steel powder

Shigeru Unami, Yukiko Ozaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The effects of Ni or Cu powder addition on the mechanical properties of the sintered and carburized compacts made of the Mo hybrid-alloyed steel powder, which is based on 0.6 mass% Mo prealloyed steel powder diffusion-bonded with 0.2 mass% Mo powder particles, have been investigated. The tensile and rotating bending fatigue strengths of the 1% Ni added material increase compared to the additive-free material. In the case of 2% Ni addition, the tensile strength is almost same and the fatigue strength decreases compared to 1%Ni added material. The shrinkage of pores is observed with Ni additions, and should result in the improvement of the fatigue strength. However, more than 1%Ni addition forms Nirich austenitic phase, which causes the strength reductions. The tensile and rotating bending fatigue strengths decrease with Cu additions. The Cu added material shows the structure including coarse pores formed by outflow of melted Cu during sintering. Such coarse pores should cause the strength reductions.

本文言語英語
ホスト出版物のタイトルAdvances in Powder Metallurgy and Particulate Materials - 2008, Proceedings of the 2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008
ページ10129-10139
ページ数11
出版ステータス出版済み - 2008
外部発表はい
イベント2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008 - Washington, DC, 米国
継続期間: 6 8 20086 12 2008

その他

その他2008 World Congress on Powder Metallurgy and Particulate Materials, PowderMet 2008
国/地域米国
CityWashington, DC
Period6/8/086/12/08

All Science Journal Classification (ASJC) codes

  • 金属および合金
  • 表面および界面

フィンガープリント

「Effects of nickel or copper addition on mechanical properties of sintered and carburized compacts made of molybdenum hybrid-alloyed steel powder」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル