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Article: On the fatigue crack propagation mechanism of a TiB2-reinforced high-modulus steel

TitleOn the fatigue crack propagation mechanism of a TiB2-reinforced high-modulus steel
Authors
KeywordsHigh-modulus steel
Fatigue crack propagation
Interfacial strength
Crack closure
Issue Date2020
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/compositesb
Citation
Composites Part B: Engineering, 2020, v. 190, p. article no. 107960 How to Cite?
AbstractThe fatigue crack propagation mechanism of a TiB2-reinforced high-modulus steel fabricated by eutectic solidification process was investigated for the first time. The fatigue crack growth rate (FCGR) of the TiB2-reinforced steel was measured by using in-situ scanning electron microscope (SEM) and it was compared with that of a low carbon ferritic steel. It showed that the FCGR of TiB2-reinforced steel was always lower than that of the low carbon steel. It can be mainly attributed to excellent intrinsic fatigue crack resistance due to improved Young's modulus and the extrinsic reasons ascribed to multiple fatigue crack propagation mechanisms resulting in different crack closure level. In addition, fractographic analysis revealed that almost no interfacial debonding occurred during fatigue crack propagation. It was found that the four types of fatigue crack propagation behavior existed in the studied TiB2-reinforced steel, which contribute to its excellent fatigue crack growth resistance in a synthetical way.
Persistent Identifierhttp://hdl.handle.net/10722/289750
ISSN
2020 Impact Factor: 9.078
2020 SCImago Journal Rankings: 2.196
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLI, B-
dc.contributor.authorXU, K-
dc.contributor.authorCHEN, R-
dc.contributor.authorLi, Y-
dc.contributor.authorWANG, X-
dc.contributor.authorJIANG, C-
dc.contributor.authorHuang, MX-
dc.date.accessioned2020-10-22T08:16:56Z-
dc.date.available2020-10-22T08:16:56Z-
dc.date.issued2020-
dc.identifier.citationComposites Part B: Engineering, 2020, v. 190, p. article no. 107960-
dc.identifier.issn1359-8368-
dc.identifier.urihttp://hdl.handle.net/10722/289750-
dc.description.abstractThe fatigue crack propagation mechanism of a TiB2-reinforced high-modulus steel fabricated by eutectic solidification process was investigated for the first time. The fatigue crack growth rate (FCGR) of the TiB2-reinforced steel was measured by using in-situ scanning electron microscope (SEM) and it was compared with that of a low carbon ferritic steel. It showed that the FCGR of TiB2-reinforced steel was always lower than that of the low carbon steel. It can be mainly attributed to excellent intrinsic fatigue crack resistance due to improved Young's modulus and the extrinsic reasons ascribed to multiple fatigue crack propagation mechanisms resulting in different crack closure level. In addition, fractographic analysis revealed that almost no interfacial debonding occurred during fatigue crack propagation. It was found that the four types of fatigue crack propagation behavior existed in the studied TiB2-reinforced steel, which contribute to its excellent fatigue crack growth resistance in a synthetical way.-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/compositesb-
dc.relation.ispartofComposites Part B: Engineering-
dc.subjectHigh-modulus steel-
dc.subjectFatigue crack propagation-
dc.subjectInterfacial strength-
dc.subjectCrack closure-
dc.titleOn the fatigue crack propagation mechanism of a TiB2-reinforced high-modulus steel-
dc.typeArticle-
dc.identifier.emailLi, Y: yzli2@hku.hk-
dc.identifier.emailHuang, MX: mxhuang@hku.hk-
dc.identifier.authorityHuang, MX=rp01418-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.compositesb.2020.107960-
dc.identifier.scopuseid_2-s2.0-85081029334-
dc.identifier.hkuros317274-
dc.identifier.volume190-
dc.identifier.spagearticle no. 107960-
dc.identifier.epagearticle no. 107960-
dc.identifier.isiWOS:000523558700027-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl1359-8368-

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