Influence of low plasticity burnishing on the formation of strain induced martensite in the surface layer

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dc.creatorDiogo Azevedo de Oliveira
dc.creatorPedro Paiva Brito
dc.creatorFrederico de Castro Magalhães
dc.creatorPatrícia Canazart Azzi
dc.creatorJosé Domingos Ardisson
dc.creatorAlexandre Mendes Abrão
dc.date.accessioned2025-02-17T23:02:34Z
dc.date.accessioned2025-09-08T23:34:31Z
dc.date.available2025-02-17T23:02:34Z
dc.date.issued2023-10-20
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1016/j.jmrt.2023.10.133
dc.identifier.issn2238-7854
dc.identifier.urihttps://hdl.handle.net/1843/80168
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Materials Research and Technology
dc.rightsAcesso Aberto
dc.subjectAço inoxidável austenítico
dc.subjectPolimento
dc.subjectAço inox
dc.subjectMartensítico
dc.subject.otherAustenitic stainless steel
dc.subject.otherLow plasticity burnishing
dc.subject.otherStrain-induced martensitic
dc.subject.otherSurface deformation
dc.titleInfluence of low plasticity burnishing on the formation of strain induced martensite in the surface layer
dc.typeArtigo de periódico
local.citation.epage4594
local.citation.spage4573
local.citation.volume27
local.description.resumoIn this research, AISI 304 austenitic stainless steel was used as work material and the influence of low plasticity burnishing (LPB) parameters (speed, number of passes and pressure) was investigated in terms of equivalent strain, LPB force, strain induced α′-martensite formation, deformation wave morphology and microhardness. Additionally, a correlation between the formation of α′-martensite and surface topography was investigated. The results showed that increasing the number of passes and pressure intensifies strain, while higher speed reduces friction and results in lower and more evenly distributed strain. The formation of LPB-induced α′-martensite was analyzed in a surface layer from 0.255 μm to a maximum depth of 2 μm. The highest content of α′-martensite was identified near the surface and decreased with depth. Mössbauer analysis (depth of ≈0.1 μm) supported this result. This behavior deviates from predictive models. Increasing the LPB speed reduces the α′-martensite content due to the generated adiabatic heat and, in some cases, its formation is nearly inhibited ( 5 %). The increase in the number of passes elevates the strain and, consequently, the α′-martensite content, with a maximum value approximately 90 %. Furthermore, the number of LPB passes was the only parameter to produces a refined grain layer. The increase in pressure elevates the strain, raising the content of α′-martensite. The trend of increasing α′-martensite content with higher numbers of passes and pressure was also observed in the context of waviness, i.e., the increase in deformation that is responsible for the higher α′-martensite content also increases the surface waviness.
local.identifier.orcidhttps://orcid.org/0000-0001-9737-4911
local.identifier.orcidhttps://orcid.org/0000-0003-2406-4407
local.identifier.orcidhttps://orcid.org/0000-0002-5485-5122
local.identifier.orcidhttps://orcid.org/0000-0002-5615-3482
local.identifier.orcidhttps://orcid.org/0000-0003-2015-4077
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA MECÂNICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S2238785423025826

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