Dimensional change stability during heat treatment of sintered compacts made from composite-type alloyed steel powders

Keiichi Maruta, Osamu Furukimi, Shigeaki Takajo

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

1 被引用数 (Scopus)

抄録

Factors affecting dimensional change stability of sintered compacts during heat treatment have been investigated to improve dimensional precision of case-hardened compacts made from composite-type alloyed steel powders with compositions around 4%Ni-1.5%Cu-0.5%Mo. Dimensional change stability in carburized and quenched compacts is improved by increasing Ni content, since micro-strain distribution becomes more homogeneous. The size distribution of Ni-rich austenite is correlated with dimensional change stability on tempering. Such austenite phases are observed contrast by a special etching technique which enables quantitative measurements of microstructures. A composite-type alloyed steel powder containing 5.57%Ni, 1.51%Cu and 0.50%Mo with finely dispersed Ni on the iron particles provides excellent dimensional stability during the heat treatment process.

本文言語英語
ホスト出版物のタイトル1989 Advanced in Powder Metallurgy - Volume 1
出版社Publ by MPIF Metal Powder Industries Federation
ページ351-364
ページ数14
ISBN(印刷版)0918404908
出版ステータス出版済み - 12 1 1989
イベントProceedings of the 1989 Powder Metallurgy Conference & Exhibition - San Diego, CA, USA
継続期間: 6 11 19896 14 1989

出版物シリーズ

名前1989 Advanced in Powder Metallurgy - Volume 1

その他

その他Proceedings of the 1989 Powder Metallurgy Conference & Exhibition
CitySan Diego, CA, USA
Period6/11/896/14/89

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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