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Article: Hydrogen effect on the cavitation erosion resistance of AISI 316L stainless steel laser surface-modified with NiTi

TitleHydrogen effect on the cavitation erosion resistance of AISI 316L stainless steel laser surface-modified with NiTi
Authors
KeywordsCavitation Erosion
Elastic Properties
Hardness
Laser Processing
Niti
Stainless Steel
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/matlet
Citation
Materials Letters, 2007, v. 61 n. 1, p. 239-243 How to Cite?
AbstractAISI 316L stainless steel was laser surface-modified with NiTi for improving cavitation erosion resistance as reported in a previous study. The present study aimed at investigating the effect of hydrogen charging on the cavitation erosion resistance of the NiTi-modified layer, in comparison with 316L substrate and bulk NiTi plate. To compare the hydrogen effect, the three types of samples were subjected to the same electrolytic charging intensity. The change in surface morphology and in the phases present was studied by scanning-electron microscopy and X-ray diffractometry. The indentation properties were studied using Vickers microhardness test and nanoindentation test. Cavitation erosion test indicated that hydrogenation resulted in different degrees of decrease in erosion resistance in all the three types of samples, which could be attributed to different mechanisms. For 316L, the hydrogen effect was mild, congruent with the small change in indentation properties. For NiTi-modified 316L, the decrease in resistance was due to a drop in hardness and elasticity, while for bulk NiTi, the decrease was mainly attributable to the formation of hydrides leading to the presence of surface cracks. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/170093
ISSN
2015 Impact Factor: 2.437
2015 SCImago Journal Rankings: 0.807
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChiu, KYen_US
dc.contributor.authorCheng, FTen_US
dc.contributor.authorMan, HCen_US
dc.date.accessioned2012-10-30T06:05:15Z-
dc.date.available2012-10-30T06:05:15Z-
dc.date.issued2007en_US
dc.identifier.citationMaterials Letters, 2007, v. 61 n. 1, p. 239-243en_US
dc.identifier.issn0167-577Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/170093-
dc.description.abstractAISI 316L stainless steel was laser surface-modified with NiTi for improving cavitation erosion resistance as reported in a previous study. The present study aimed at investigating the effect of hydrogen charging on the cavitation erosion resistance of the NiTi-modified layer, in comparison with 316L substrate and bulk NiTi plate. To compare the hydrogen effect, the three types of samples were subjected to the same electrolytic charging intensity. The change in surface morphology and in the phases present was studied by scanning-electron microscopy and X-ray diffractometry. The indentation properties were studied using Vickers microhardness test and nanoindentation test. Cavitation erosion test indicated that hydrogenation resulted in different degrees of decrease in erosion resistance in all the three types of samples, which could be attributed to different mechanisms. For 316L, the hydrogen effect was mild, congruent with the small change in indentation properties. For NiTi-modified 316L, the decrease in resistance was due to a drop in hardness and elasticity, while for bulk NiTi, the decrease was mainly attributable to the formation of hydrides leading to the presence of surface cracks. © 2006 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/matleten_US
dc.relation.ispartofMaterials Lettersen_US
dc.subjectCavitation Erosionen_US
dc.subjectElastic Propertiesen_US
dc.subjectHardnessen_US
dc.subjectLaser Processingen_US
dc.subjectNitien_US
dc.subjectStainless Steelen_US
dc.titleHydrogen effect on the cavitation erosion resistance of AISI 316L stainless steel laser surface-modified with NiTien_US
dc.typeArticleen_US
dc.identifier.emailChiu, KY:pkychiu@hkucc.hku.hken_US
dc.identifier.authorityChiu, KY=rp00379en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.matlet.2006.04.040en_US
dc.identifier.scopuseid_2-s2.0-33750822273en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33750822273&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume61en_US
dc.identifier.issue1en_US
dc.identifier.spage239en_US
dc.identifier.epage243en_US
dc.identifier.isiWOS:000242511300060-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridChiu, KY=7202988127en_US
dc.identifier.scopusauthoridCheng, FT=7202811219en_US
dc.identifier.scopusauthoridMan, HC=7102326766en_US

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