Characteristics and strengthening mechanism of alloyed steel powder `KIP SIGMALOY 2010' for ultra high strength sintered materials

Osamu Furukimi, Kei ichi Maruta, Yoshaiaki Maeda

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

The chemical composition of Ni-and Mo-containing composite-type allowed steel powder was optimized for the production of high strength sintered components via compaction, sintering and heat treatment. A powder with 2%Nit and 1%Mo, KIP SIGMALOY 2010, attained a high tensile strength of 1920MPa, a high unnotched Charpy absorbed energy of 53 J, a high endurance limit of rotating bending fatigue strength of 390MPa and a high endurance limit of contact fatigue strength of 2710MPa, when double-pressed, double-sintered, bright-quenched and tempered. These values were much higher than those of a conventional composite-type alloyed steel powder. The strengthening was attributed to the increase of sintered density and the strain-induced martensitic transformation of the austenite phase. The sintered compacts made from the new powder remained soft before heat treatment and showed a ten-times longer tool life in the case of low cutting speed, compared with that of a conventional composite-type alloyed steel powder.

本文言語英語
ページ(範囲)22-29
ページ数8
ジャーナルKawasaki Steel Technical Report
29
出版ステータス出版済み - 11月 1993
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 金属および合金

フィンガープリント

「Characteristics and strengthening mechanism of alloyed steel powder `KIP SIGMALOY 2010' for ultra high strength sintered materials」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