Research on elevated temperature deformation behavior of Ti-6Al-4V sheets
来源期刊：Rare Metals2009年第6期
论文作者：SUN Shengdi, GUO Bin, SHAN Debin, and ZHONG Yingying School of Materials Science & Engineering, Harbin Institute of Technology, Harbin , China
文章页码：550 - 553
摘 要：Hot deformation behaviors were studied by means of scanning electron microscopy （SEM） and uniaxial thermal tension. The effect of deformation temperature and strain rate on flow stress was evaluated, and deformation mechanism was analyzed. The results show that the stress-strain curves of Ti-6Al-4V （TC4） alloy sheet and TC4 alloy bar at elevated temperatures have different forms and rules. Flow stress of TC4 is controlled by both strain rate and deformation temperature. The flow stress decreases with the increase of high temperature. Deformation mechanisms exhibit dynamic recovery and recrystallization feature within high temperature region and grain boundary slip behaviors at low temperature.
SUN Shengdi, GUO Bin, SHAN Debin, and ZHONG Yingying School of Materials Science & Engineering, Harbin Institute of Technology, Harbin 150001, China
摘 要：Hot deformation behaviors were studied by means of scanning electron microscopy （SEM） and uniaxial thermal tension. The effect of deformation temperature and strain rate on flow stress was evaluated, and deformation mechanism was analyzed. The results show that the stress-strain curves of Ti-6Al-4V （TC4） alloy sheet and TC4 alloy bar at elevated temperatures have different forms and rules. Flow stress of TC4 is controlled by both strain rate and deformation temperature. The flow stress decreases with the increase of high temperature. Deformation mechanisms exhibit dynamic recovery and recrystallization feature within high temperature region and grain boundary slip behaviors at low temperature.
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