2014
DOI: 10.1016/j.msea.2014.02.059
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Stability of retained austenite in multi-phase microstructure during austempering and its effect on the ductility of a low carbon steel

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Cited by 109 publications
(27 citation statements)
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“…In addition, their mechanical properties are summarized in Table 4. In TRIP steels, it is known that not only the volume fraction of RA, but also its transformation stability plays an important role in determining the global mechanical properties (Furnemont et al, 2002;Ahn et al, 2010;Xiong et al, 2013;Xie et al, 2014). In fact, similar behaviour has also been reported (De Diego-Calderón et al, 2014;De Knijf et al, 2014a) in Q&P steels.…”
Section: Influence Of Qtmentioning
confidence: 56%
“…In addition, their mechanical properties are summarized in Table 4. In TRIP steels, it is known that not only the volume fraction of RA, but also its transformation stability plays an important role in determining the global mechanical properties (Furnemont et al, 2002;Ahn et al, 2010;Xiong et al, 2013;Xie et al, 2014). In fact, similar behaviour has also been reported (De Diego-Calderón et al, 2014;De Knijf et al, 2014a) in Q&P steels.…”
Section: Influence Of Qtmentioning
confidence: 56%
“…Assim como em [3,6], com intuito de obter microestrutura refinada, pré-tempera foi aplicada antes da austêmpera interrompida (tratamento istotérmico de bainitização). As micrografias obtidas estão representadas nas figuras 1, 2, 3, 4 e 5.…”
Section: Resultsunclassified
“…Em um aço multiconstituído comum, a bainita e a martensita, normalmente, contribuem para a resistência mecânica, já a ferrita modifica a taxa de encruamento durante o estágio inicial do escoamento, desta forma a ductilidade é melhorada. As contribuições de diversas fases/constituintes resultam em propriedades mecânicas superiores [3]. Em aços TRIP (transformation induced-plasticity) tradicionais, a microestrutura multiconstituída é obtida por recozimento na região de dual-phase (austenita e ferrita), enquanto a austenita retida é conseguida pelo processo de austêmpera de um estágio; tratamento isotérmico na região de transformação bainítica [3].…”
Section: Introductionunclassified
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“…In contrast, abundant atom probe investigations found that a phase separation in the steel matrix into Fe-rich α and Cr-rich α′ phases occurs during the aging at intermediate temperature, which is considered to increase the strength but decrease the ductility and toughness [20,21]. Additionally, partial reversion from martensite to austenite also takes place during the aging treatment and this so-called reverted austenite has a strong influence on the mechanical properties [9,[22][23][24].…”
Section: Introductionmentioning
confidence: 99%