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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 307Observation of Crack Initiation Direction around...

Observation of Crack Initiation Direction around Inclusions in SUJ2 under Single-Ball Rolling Contact Fatigue

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Abstract:

A newly developed single-ball RCF testing machine was used in order to investigate crack initiation direction within SUJ2. From empirical data, it was found that the distribution of crack initiation direction at N = 1.0x106 cycles is very close to that at N = 1.0x107. This means that the cracks that do not cause failure stop growing by 1.0x106 cycles. Some cracks however continue to grow towards the surface, at an angle of 135 degrees.

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Periodical:

Applied Mechanics and Materials (Volume 307)

Pages:

342-346

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.307.342

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Online since:

February 2013

Authors:

Shintaro Hazeyama, Justyna Rozwadowska, Katsuyuki Kida, Edson Costa Santos, Takashi Honda, Kenji Kanemasu, Takuya Shibukawa

Keywords:

Crack Direction, Crack Initiation, Non-Metallic Inclusion, Rolling Contact Fatigue (RCF), SUJ2

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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