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Effect of retained austenite on wear resistance of nanostructured dual phase steels
journal contribution
posted on 2016-01-01, 00:00 authored by F Hu, K M Wu, Peter HodgsonPeter HodgsonNanostructured super bainitic and quenching-partitioning (Q&P) martensitic steels with a significant amount of retained austenite obtained by low temperature bainitic transformation and Q&P respectively were studied to explore the effect of retained austenite on stirring wear resistance. The results suggest that the Q&P martensitic steel significantly enhanced the hardness of the worn surface (from 674 to 762 HV1) and increased the thickness of the deformed layer (,3.3 mm), compared to the nanostructured bainitic steel. The underlying reason is that the Q&P martensitic steel has a higher stability of retained austenite thereby providing a superior transformation induced plasticity effect to increase surface hardness and reduce wear rate during the wear process.
History
Journal
Materials science and technologyVolume
32Issue
1Pagination
40 - 48Publisher
Taylor & FrancisLocation
Abingdon, Eng.Publisher DOI
ISSN
0267-0836eISSN
1743-2847Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, Institute of Materials, Minerals and MiningUsage metrics
Keywords
wear testingretained austenitenanostructured bainiteQ&P martensitesteelScience & TechnologyTechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringMaterials ScienceMECHANICAL-PROPERTIESBAINITIC STEELSTRENGTH STEELCARBONMARTENSITEMICROSTRUCTUREPERFORMANCESTABILITYFERRITEMechanical Engineering
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