2007
DOI: 10.1016/s1006-7191(08)60008-3
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Influence of Cold Rolling Reduction on Microstructure and Mechanical Properties of Twip Steel

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Cited by 15 publications
(16 citation statements)
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“…These results are consistent with those obtained by Bracke et al [13] (annealing temperature = 700ºC), even though the authors worked with a steel cold-rolled with 50% reduction of higher carbon content (Fe-22Mn-0.6C), but with lower concentrations of alloying elements (Mn, Si, Al, and Ni), i.e., when compared to the steel of present study [11]. In this direction, Mi et al [12] and Dini et al [14] used alloys of similar chemical composition (Fe-31Mn-3Al-3Si) and found the recrystallization temperature of 700ºC and 800°C, respectively, while the grain growth already occurred above 800°C. The model suggests that the high work hardening rate of TWIP steel is due to the interaction between gliding dislocation and twins, where the twins act as strong obstacles to the dislocation motion.…”
Section: Discussionsupporting
confidence: 92%
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“…These results are consistent with those obtained by Bracke et al [13] (annealing temperature = 700ºC), even though the authors worked with a steel cold-rolled with 50% reduction of higher carbon content (Fe-22Mn-0.6C), but with lower concentrations of alloying elements (Mn, Si, Al, and Ni), i.e., when compared to the steel of present study [11]. In this direction, Mi et al [12] and Dini et al [14] used alloys of similar chemical composition (Fe-31Mn-3Al-3Si) and found the recrystallization temperature of 700ºC and 800°C, respectively, while the grain growth already occurred above 800°C. The model suggests that the high work hardening rate of TWIP steel is due to the interaction between gliding dislocation and twins, where the twins act as strong obstacles to the dislocation motion.…”
Section: Discussionsupporting
confidence: 92%
“…The increase of carbon content to 0.6% also implies the increase of strength, reaching values of tensile strength about 1,000 MPa [4,5,9,10]. In the present case, the carbon content is much lower, so the strength reaches around 700 MPa, also in agreement with Mi et al [12]. The reduction in grain size leads to increase in strength, but the total elongation decreases [4].…”
Section: Discussionsupporting
confidence: 91%
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“…Comparando-se os resultados aqui obtidos com outros da literatura, para a mesma faixa de composição de Mn, verifica-se a similaridade. Por exemplo, os trabalhos de Kim et al (5) e Mi et al (13) O aumento do teor de carbono para 0,6% implica também no aumento de resistência, atingindo-se valores da ordem de 1.000 MPa. (4,5,9,10) No caso presente, o teor de carbono é muito mais baixo, por isso a resistência alcança 700 MPa, também em concordância com Mi et al (13) A redução no tamanho de grão austenítico leva ao incremento na resistência, porém o alongamento total diminui.…”
Section: Resultsunclassified
“…Quando o material é deformado, no ensaio de tração, as maclas de deformação aparecem dentro dos grãos e aumentam durante a deformação. (2,9) Esse processo é responsável pelo aumento da ductilidade do material. Isso porque, com o aumento da temperatura, maior será a fração de grãos recristalizados, o que disponibiliza mais locais para a formação das referidas maclas.…”
Section: Propriedades Mecânicasunclassified