Induced Residual Stress in Austenitic Stainless Steel F138 after Shot Peening and Plasma Nitriding Surface Treatment

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dc.contributor.authorde Oliveira E.P.R.
dc.contributor.authorde Oliveira R.R.
dc.contributor.authorVicente J.G.
dc.contributor.authorMassi M.
dc.contributor.authorCouto A.A.
dc.date.accessioned2025-04-01T06:20:28Z
dc.date.available2025-04-01T06:20:28Z
dc.date.issued2025
dc.description.abstract© 2025 Trans Tech Publications Ltd, All Rights Reserved.Shot peening mechanical treatment surface, commonly used to improve material surface mechanical properties, as fatigue and wear resistance increase, induces deformations in the material crystal lattice, characterized by the presence of stress. Additionally, plasma nitriding, another surface treatment used to minimize failures in austenitic stainless steels, can produce resistant surface layers, composed of the interstitial nitrogen atoms accommodated in austenitic structure, increasing the layer hardness. Thus, the present work aims to study the residual stress and layer formation on austenitic stainless steel F138 surface, after different treatment conditions. Plasma nitriding treatment after shot peening differences were analyzed. Residual stress was investigated by X-ray diffraction, using sin2 ψ method. Samples of surface morphology and formed layer were analyzed by scanning electron microscopy (SEM) and X-ray diffraction. Previous shot peening treatment to plasma nitriding promotes the formation of a less homogeneous layer, with microcracks and induced residual stress increase. It was observed the formation of iron nitrides and expanded austenite after plasma nitriding treatment. Surface residual stress induction after shot peening and plasma nitriding treatments can be efficient methods to improve material mechanical properties.
dc.description.firstpage147
dc.description.lastpage156
dc.description.volume439
dc.identifier.doi10.4028/p-vO6EMn
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40392
dc.relation.ispartofDefect and Diffusion Forum
dc.rightsAcesso Restrito
dc.subject.otherlanguagefatigue
dc.subject.otherlanguageplasma nitriding
dc.subject.otherlanguageresidual stress
dc.subject.otherlanguageshot peening
dc.subject.otherlanguagestainless steel F138
dc.titleInduced Residual Stress in Austenitic Stainless Steel F138 after Shot Peening and Plasma Nitriding Surface Treatment
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-105000256135
local.scopus.subjectAustenitic stainless
local.scopus.subjectMaterial's surface
local.scopus.subjectMechanical treatments
local.scopus.subjectNitriding surfaces
local.scopus.subjectNitriding treatment
local.scopus.subjectPlasma nitriding
local.scopus.subjectShot-peening
local.scopus.subjectStainless steel f138
local.scopus.subjectSurface mechanical properties
local.scopus.subjectX- ray diffractions
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105000256135&origin=inward
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