Evaluation of Internal Crack Growth of PPS Thrust Bearings under Rolling Contact Fatigue in Water

Shintaro Kanagawa; Takahiro Matsueda; Katsuyuki Kida; Yuji Kashima

doi:10.4028/www.scientific.net/KEM.888.77

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 888Evaluation of Internal Crack Growth of PPS Thrust...

Evaluation of Internal Crack Growth of PPS Thrust Bearings under Rolling Contact Fatigue in Water

Abstract:

In this study, in order to evaluate the progress of internal cracks in PPS thrust bearings under rolling contact fatigue in water, cracks were observed by a full-cross-section observation method using a lathe machining. “Main subsurface crack” initiated at the surface toward the inside, then grew in a direction parallel to the surface. They connected with many “Semi-circular cracks” initiating at the surface from the opposite side to the inside, to from a semi-ellipsoidal flaking damage. It was found that the “Semi-circular cracks” and the “Main subsurface crack” dominated the flaking destruction.

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Periodical:

Key Engineering Materials (Volume 888)

Pages:

77-81

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.888.77

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Online since:

June 2021

Authors:

Shintaro Kanagawa, Takahiro Matsueda, Katsuyuki Kida*, Yuji Kashima

Keywords:

Crack, Polymer Bearing, PPS, Rolling Contact Fatigue, Tribology

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