Effects of fine particle peening on fatigue strength of transformation-induced plasticity (TRIP)-aided martensitic steel

Koh Ichi Sugimoto, Yuta Mizuno, Tomohiko Hojo

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

The effects of fine particle peening on the torsional strength of a transformation-induced plasticity (TRIP)-aided martensitic (TM) steel were investigated for applications to precision gears. Fine particle peening increased the fatigue limits and lowered the notch-sensitivities of steel, compared with quenched and subsequently tempered SNCM420 steel. In addition, fine particle peening lowered the fatigue crack propagation rate in TM steel with a high threshold value of the stress intensity range. These results were associated with (1) higher Vickers hardness, (2) higher compressive residual stress, and (3) a larger amount of untransformed retained austenite in the surface layer when compared with SNCM420 steel.

本文言語English
ホスト出版物のタイトルAdvances in Fracture and Damage Mechanics XIV
編集者Darko Bajic, Zdenko Tonkovic, Ferri Aliabadi
出版社Trans Tech Publications Ltd
ページ85-88
ページ数4
ISBN(印刷版)9783038355410
DOI
出版ステータスPublished - 2016
外部発表はい
イベント14th International Conference on Fracture and Damage Mechanics, FDM 2015 - Budva, Montenegro
継続期間: 2015 9 212015 9 23

出版物シリーズ

名前Key Engineering Materials
665
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

Other

Other14th International Conference on Fracture and Damage Mechanics, FDM 2015
国/地域Montenegro
CityBudva
Period15/9/2115/9/23

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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