2012
DOI: 10.1016/j.matchar.2012.07.016
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Investigation of plastic deformation heterogeneities in duplex steel by EBSD

Abstract: is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. A B S T R A C TAn EBSD analysis of a duplex steel (austeno-ferritic) deformed in tension up to fracture is presented. The main purpose of the paper is to describe, qualitatively and quantitatively, the differences in the behavior of the two phases during plastic deformation. In order to do so, several topological maps are measured on the deformed state using t… Show more

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Cited by 102 publications
(28 citation statements)
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References 25 publications
(32 reference statements)
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“…3(a) and3(b). The IQ factor is often used to determine the deformed and recrystallized volume fractions of material[23]. The recrystallized volume fraction of CVCDEed product is higher than original extruded bar.Fig.…”
mentioning
confidence: 99%
“…3(a) and3(b). The IQ factor is often used to determine the deformed and recrystallized volume fractions of material[23]. The recrystallized volume fraction of CVCDEed product is higher than original extruded bar.Fig.…”
mentioning
confidence: 99%
“…Principles of the EBSD lattice strain assessment have been described elsewhere (e.g., in our previous works [21] , [22] ). In the present work, diffraction pattern quality deterioration and local misorientation analysis approaches [23] , [24] were chosen. EBSD microtextural analysis was conducted by orientation distribution function (ODF) calculations using the Harmonic Series Expansion method, assuming both cubic crystal symmetry and an orthonormal (for the initial material) or a triclinic (for all rolled specimens) symmetry of the sample.…”
Section: B Materials Characterizationmentioning
confidence: 99%
“…A morfologia e repartição de ambas as fases é um dos principais fatores para controlar o comportamento mecânico e suas propriedades finais. [3] Os AID são caracterizados por possuir alto teor de elementos de liga, por exemplo, molibdênio e nitrogênio os quais permitem a ocorrência de mudanças significativas na sua microestrutura como consequência de tratamentos termomecânicos [2]. Durante a deformação plástica, o refinamento de grão promovido pela estrutura duplex (δ/γ) e os elementos de liga fornecem aos AID maior resistência mecânica comparada aos aços inoxidáveis ferríticos e austeníticos (AISI 430 e 304, respectivamente) [4].…”
Section: Introductionunclassified
“…Durante a deformação plástica, o refinamento de grão promovido pela estrutura duplex (δ/γ) e os elementos de liga fornecem aos AID maior resistência mecânica comparada aos aços inoxidáveis ferríticos e austeníticos (AISI 430 e 304, respectivamente) [4]. No entanto, as duas fases presentes nos AID não apresentam o mesmo comportamento durante a deformação [3]. A fase ferrítica, com estrutura CCC, possui inúmeros sistemas de deslizamento e alta energia de falha de empilhamento, enquanto que a fase austenítica de estrutura CFC tem menos sistema de deslizamento e menor energia de falha de empilhamento [5].…”
Section: Introductionunclassified