Material influence on the stress corrosion cracking of rock bolts

Gamboa, E. and Atrens, A. (2005) Material influence on the stress corrosion cracking of rock bolts. Engineering Failure Analysis, 12 2: 201-235. doi:10.1016/j.engfailanal.2004.07.002

Author Gamboa, E.
Atrens, A.
Title Material influence on the stress corrosion cracking of rock bolts
Journal name Engineering Failure Analysis   Check publisher's open access policy
ISSN 1350-6307
Publication date 2005-04-01
Year available 2005
Sub-type Article (original research)
DOI 10.1016/j.engfailanal.2004.07.002
Open Access Status Not yet assessed
Volume 12
Issue 2
Start page 201
End page 235
Total pages 35
Place of publication Oxford
Publisher Pergamon-elsevier Science Ltd
Language eng
Subject C1
321021 Psychiatry
730211 Mental health
291400 Materials Engineering
291499 Materials Engineering not elsewhere classified
671199 Transport equipment not elsewhere classified
Abstract Rock bolt stress corrosion cracking (SCC) has been investigated using the linearly increasing stress test (LIST). One series of experiments determined the threshold stress of various bolt metallurgies (900 MPa for 1355AXRC, and 800 MPa for MAC and MA840B steels). The high values of threshold stress suggest that SCC begins in rock bolts when they are sheared by moving rock strata. SCC only occurred for environmental conditions which produce hydrogen on the sample surface, leading to hydrogen embrittlement and SCC. Different threshold potentials were determined for a range of metallurgies. Cold work was shown to increase the resistance of the steel to SCC. Rock bolt rib geometry does not have a direct impact on the SCC resistance properties of the bolt, although the process by which the ribs are produced can introduce tensile stresses into the bolt which lower its resistance to SCC. (C) 2004 Elsevier Ltd. All rights reserved.
Keyword Engineering, Mechanical
Materials Science, Characterization & Testing
Stress Corrosion Cracking
Rock Bolts
Threshold Stress
Hydrogen Embrittlement
Stress Intensity Factors
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Mechanical & Mining Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 33 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 41 times in Scopus Article | Citations
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Created: Tue, 14 Aug 2007, 01:00:43 EST