UM
Effect of multiple-pass friction stir processing on hardness and corrosion resistance of martensitic stainless steel
Pan,Linlin1; Kwok,Chi Tat1,2; Lo,Kin Ho1,2
2019-10-01
Source PublicationCoatings
Volume9Issue:10
AbstractIn the present study, the influence of multi-pass friction stir processing (FSP) of AISI 420 martensitic stainless steel on the microstructure, hardness, and corrosion behavior was investigated. Similar to single-pass FSPed 420, the multi-pass FSPed specimens with different overlapping ratios incurred microstructural change at the center and retreating side of the second track with martensite, retained austenite, and chromium carbides. Overlapping of the two successive tracks in the multi-pass FSPed 420 led to back-tempering and a local drop in hardness at the advancing side of the second track. The precipitation of chromium carbides in the tempered regions of the multi-pass FSPed specimens became the active sites for preferential corrosion attack in the 3.5 wt.% NaCl solution at 25 °C.
KeywordCorrosion Friction stir processing Hardness Martensitic stainless steel Overlapping
DOI10.3390/coatings9100620
URLView the original
Language英語English
Scopus ID2-s2.0-85073073644
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorKwok,Chi Tat
Affiliation1.Institute of Applied Physics and Materials Engineering,University of Macau,999078,Macao
2.Department of Electromechanical Engineering,University of Macau,999078,Macao
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING;  University of Macau
Recommended Citation
GB/T 7714
Pan,Linlin,Kwok,Chi Tat,Lo,Kin Ho. Effect of multiple-pass friction stir processing on hardness and corrosion resistance of martensitic stainless steel[J]. Coatings,2019,9(10).
APA Pan,Linlin,Kwok,Chi Tat,&Lo,Kin Ho.(2019).Effect of multiple-pass friction stir processing on hardness and corrosion resistance of martensitic stainless steel.Coatings,9(10).
MLA Pan,Linlin,et al."Effect of multiple-pass friction stir processing on hardness and corrosion resistance of martensitic stainless steel".Coatings 9.10(2019).
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