RELATIONSHIP BETWEEN FATIGUE STRENGTH AND HARDNESS FOR HIGH STRENGTH STEELS.

Chitoshi Masuda*, Yoshihisa Tanaka

*この研究の対応する著者

研究成果: Article査読

37 被引用数 (Scopus)

抄録

To make a quantitative analysis of the defect size for high strength steels, fatigue properties and fatigue fracture mechanism were examined for 3 different low alloy steels tempered at several temperatures. Fatigue strength was evaluated up to about 10**8 cycles under rotating bending at room temperature in dry air. Two types of S-N curves were found, the one has fatigue limit for medium strength steels fractured from the specimen surface, the other for higher strength steels has temporal fatigue limit because of the interior fracture in the long life region over about N//f equals 10**7. Fatigue strength would be predicted by the linear relation between the threshold stress intensity factor and the hardness of the materials. It is suggested that the defect size to originate the fatigue crack would have important role for high strength steels up to about hv 600.

本文言語English
ページ(範囲)847-852
ページ数6
ジャーナルNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
52
476
出版ステータスPublished - 1986 4月
外部発表はい

ASJC Scopus subject areas

  • 機械工学

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