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Title: Using advanced tomography techniques to investigate the development of White Etching Cracks in a prematurely failed field bearing

Abstract

Crack surrounded by areas of microstructural alteration deemed "White etching cracks" (WECs) lead to premature failures within a multitude applications. While the exact cause of these failures remains unknown, a large number of hypotheses exist as to how and why these cracks form. The aim of the current work is to study newly initiated WEC networks using X-ray tomography followed by selective sectioning, in an attempt to elucidate the formation mechanisms of these cracks. The results obtained show that, for the presented bearing, WECs form preferentially around multi-phase inclusions containing aluminum, manganese, and sulfur. Additionally the results support the idea that the microstructural alterations form secondary to any cracking, suggesting that the alterations are simply a symptom of a preexisting failure.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
SKF GmbH; USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Wind and Water Power Technolgoies (WWPTO)
OSTI Identifier:
1427549
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Tribology International
Additional Journal Information:
Journal Volume: 116; Journal Issue: C; Journal ID: ISSN 0301-679X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
Bearing Failures; Microstructural Aterations; Premature Fatigue; White Etching Cracks; X-Ray Tomography

Citation Formats

Gould, Benjamin, Greco, Aaron, Stadler, Kenred, Vegter, Erik, and Xiao, Xianghui. Using advanced tomography techniques to investigate the development of White Etching Cracks in a prematurely failed field bearing. United States: N. p., 2017. Web. doi:10.1016/j.triboint.2017.07.028.
Gould, Benjamin, Greco, Aaron, Stadler, Kenred, Vegter, Erik, & Xiao, Xianghui. Using advanced tomography techniques to investigate the development of White Etching Cracks in a prematurely failed field bearing. United States. https://doi.org/10.1016/j.triboint.2017.07.028
Gould, Benjamin, Greco, Aaron, Stadler, Kenred, Vegter, Erik, and Xiao, Xianghui. 2017. "Using advanced tomography techniques to investigate the development of White Etching Cracks in a prematurely failed field bearing". United States. https://doi.org/10.1016/j.triboint.2017.07.028.
@article{osti_1427549,
title = {Using advanced tomography techniques to investigate the development of White Etching Cracks in a prematurely failed field bearing},
author = {Gould, Benjamin and Greco, Aaron and Stadler, Kenred and Vegter, Erik and Xiao, Xianghui},
abstractNote = {Crack surrounded by areas of microstructural alteration deemed "White etching cracks" (WECs) lead to premature failures within a multitude applications. While the exact cause of these failures remains unknown, a large number of hypotheses exist as to how and why these cracks form. The aim of the current work is to study newly initiated WEC networks using X-ray tomography followed by selective sectioning, in an attempt to elucidate the formation mechanisms of these cracks. The results obtained show that, for the presented bearing, WECs form preferentially around multi-phase inclusions containing aluminum, manganese, and sulfur. Additionally the results support the idea that the microstructural alterations form secondary to any cracking, suggesting that the alterations are simply a symptom of a preexisting failure.},
doi = {10.1016/j.triboint.2017.07.028},
url = {https://www.osti.gov/biblio/1427549}, journal = {Tribology International},
issn = {0301-679X},
number = C,
volume = 116,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 2017},
month = {Fri Dec 01 00:00:00 EST 2017}
}