Fatigue striation formation in an Fe-3%Si alloy - effects of crystallographic orientation and neighbouring grains

M. Shimojo; Y. Uchida; S. Turuoka; Y. Higo

doi:10.1046/j.1460-2695.1999.00150.x

Fatigue striation formation in an Fe-3%Si alloy - effects of crystallographic orientation and neighbouring grains

M. Shimojo, Y. Uchida, S. Turuoka, Y. Higo

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In order to know the criterion of fatigue striation formation, fatigue fracture surfaces and crack paths were investigated in Fe-3%Si single and bicrystals having various crystallographic orientations. On single crystals, striations were formed when the loading direction was close to a 〈110〉 direction. In this direction, the crack grew perpendicular to the loading direction. When the loading direction was near a 〈111〉 direction and the crack grew along an inclined plane, no striations were observed. Even in this orientation, when the crack grew perpendicular by necessity using bicrystals, striations were observed. This suggests that striations are not formed on a special crystallographic plane, but are formed when the fatigue crack plane is perpendicular to the loading direction regardless of crystallographic orientation.

Original language	English
Pages (from-to)	153-159
Number of pages	7
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	22
Issue number	2
DOIs	https://doi.org/10.1046/j.1460-2695.1999.00150.x
Publication status	Published - 1999 Feb 1
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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