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Recrystallization behavior of high purity aluminum at 300 ℃ DU Yu-xuan(杜予晅), ZHANG Xin-ming(张新明), YE Ling-ying(叶凌英), LUO Zhi-hui(罗智辉) School of Materials Science and Engineering, Central South University, Changsha 410083, China Received 21 February 2006; accepted 30 May 2006 Abstract: The recrystallization behavior of 98.5% cold rolled high purity aluminum foils annealed at 300......
件晶粒尺寸特征的影响规律. 关键词:7075铝合金;再结晶模型;数值模拟 中图分类号:TG302;TG146 文献标志码:A Empirical recrystallization model... aluminum alloy 7075 were studied within a temperature range of 250-450 ℃ and a strain rate range of 0.01-10s-1. The true stress-strain curves, average grain size, recrystallized grain size......
microscopy. The results show that the most favourable temperature of precipitation moves obviously from high temperature to the low temperature with the reduction increasing, and this drop is more than 100 ℃. The cold rolling deformation accelerates the precipitation and this effect decreases as the annealing temperature increasing. Especially, in the high temperature (450,500 ℃) region of isothermal......
recrystallization influencing mechanical properties to good extent. Higher extrusion temperature resulted in coarse grains, whereas finer grains were obtained at higher extrusion ratios. Ultimate tensile... at a higher temperature. When the extrusion temperature is raised to 350 °C, a higher rate of dynamic recrystallization is observed (Fig. 2(d)). The grains are much larger and almost all fine grains......
rates and heat treatment regimes were contrasted. The results show that the deformation rate of Nb47Ti affects recrystallization temperature largely because the growth of grain is affected by the deformation rate and heat treatment regime and so on. When the deformation rate reaches above 8%, the recrystallization can occur at lower temperature, by selecting proper heat treatment regime Nb47Ti alloy......
of recrystallization under certain circumstances. Although there are some studies in which low temperature pre-recovery treatment either have an effect of enhancing or reducing the recrystallization rate..., Figure 1(b) shows a two-step annealing (referred to as TSA) to investigate the effect of pre-recovery on recrystallization behavior. TSA included an initial pre-recovery treatment at low temperature(450 °C......
, 2006, 55(9): 843-846. [9] AL-SAMMAN T, GOTTSTEIN G. Dynamic recrystallization during high temperature deformation of magnesium[J]. Mater Sci Eng A, 2008, 490(1/2): 411-420. [10] GALIYEV... in the grains with particular orientations, the prismatic texture is weakened by <> twinning and static recrystallization twinning-induced during annealing. Key words: slip system; twinning; texture......
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Trans. Nonferrous Met. Soc. China 25(2015) 1889-1900 Arrhenius-type constitutive model and dynamic recrystallization behavior of V-5Cr-5Ti alloy during hot compression Yu-fei LI1, Zhen-hong WANG2... Received 29 June 2014; accepted 30 October 2014 Abstract: To clarify the high temperature flow stress behavior and microstructures evolution of a V-5Cr-5Ti (mass fraction, %) alloy, the isothermal hot......
with Sc and Zr can result in dispersion strengthening. Recrystallization temperature of alloys was studied by hardness method and optical metallographic method. Staring recrystallization temperature...Homogenization and Recrystallization of Al-6Mg Alloys with and without Sc and Zr 黄伯云1,陈苏里2,尹志民2,姜锋2,贺跃辉1 (1.State Key Laboratory of Powder Metallurgy,Central South University,Changsha,410083,China......