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of microhardness and tension test. The results show that, the deformation, dynamic recovery and dynamic recrystallization of the extruded Cu-5%Cr are mainly produced in Cu matrix. The higher extrusion ratio leads to more uniform microstructure and finer Cu grains. When being extruded in the range of 100-600 ℃, dynamic recovery of Cu is the dominant process, and dynamic recrystallization of Cu occurred above......
of the commercial pure aluminum.The results show that the flow stress tends to be constant after a peak value and the dynamic recovery occurs when the deformation temperatures is 220 ℃ with the strain rate of 0.01 s... compression; dynamic recovery; dynamic recrystallization 1 Introduction It’s commonly believed that the mechanism of dynamic restoration in pure aluminum during hot deformation is essentially dynamic......
alloy increases with increasing the extrusion temperature. The improvement in ductility is attributed to the dynamic recovery and recrystallization during extrusion at higher temperature as well... a necklace pattern over the un-DRX grains and redistribution of Mg17Al12 precipitates. Higher ductility at higher extrusion temperatures is due to the dynamic recovery and recrystallization and a partial......
: 5093-5103. [5] Koike J, Kobayashi T, Mukai T. The activity of non-basal slip systems and dynamic recovery at room temperature in fine grained AZ31B magnesium alloys [J]. Acta Mater, 2003, 51: 2055-2065... investigated. The results show that the dynamic recrystallization is completed when the extrusion ratio reaches 16. When the extrusion ratio is 25, the microstructure of fine and even grains with average......
-strain-rate deformation were observed. The research evidence shows that dynamic recovery and recrystallization play an important role in ultra-high-strain-rate deformation for electroformed nickel liner of shaped charge with nano-sized grain. Key words: nano-sized electroformed nickel; ultra-high-strain-rate deformation; electroformation; microtexture; dynamic recovery and recrystallization......
to continuous dynamic recovery and recrystallization. Key words: ZK60 magnesium alloy; cyclic extrusion and compression; continuous dynamic recovery and recrystallization; micros- tructure 1 Introduction... of deformation, which suggests that there is a different mechanism of grain refinement for the CECed ZK60 alloy, which maybe related to dynamic recovery and recrystallization. Since dynamic recovery......
, Mukai T, Watanabe H, Suzuki M, Maruyama K, Higashi K. The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys [J]. Acta Materialia, 2003...]. Journal of Materials Processing Technology, 2010, 210(10): 1354-1363. [16] Galiyev A, Kaibyshev R, Gottstein G. Correlation of plastic deformation and dynamic recrystallization in magnesium alloy......
]. Journal of Japan Institute of Light Metals, 1994, 44(1): 3-8. [5]Nikitina N I. Recovery after ageing of Mg-Y and Mg-Gd alloys[J]. Journal of Alloys and Compounds, 1998, 279(2): 166-170. [6]Negishi......
R. High-impact techniques and technology increase ultimate recovery in tight gas formations[J]. 2008, DOI: 10.2118/115081-MS. [11] 肖代红, 李秀秀, 朱哲民. 一种轻质耐压快速分解的铸造镁合金: CN, 103343271 B[P]. 2013-10-09. XIAO......
and grain size were also obtained. Based on the tested data, the flow stress model of F40MnV steel was established in dynamic recovery region and dynamic recrystallization region, respectively... for numerical simulation of hot forging. Key words: microalloyed forging steel; flow stress; dynamic recovery; dynamic recrystallization; Zener-Hollomon parameter 1 Introduction During hot working......