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, and advances properties. Plastic deformation makes alloys occur dynamic recovery and dynamic recrystallization, improving structures, decreasing interior defects, breaking second- phase and non-metal inclusion..., the higher the tensile strength and ductility are. During reciprocating extrusion, softening resulted form dynamic recovery and dynamic recrystallization. The softening counteracts the work hardening during......
of 200-400 ℃ and strain rate of 0.001-10 s-1. The flow stress curves considering only dynamic recovery was described by EM model. Based on EM model, the kinetics of dynamic recrystallization of ZK60 alloy... to the effect of dynamic recovery, the flow stress increases to a peak value and subsequently decreases to steady state. Both the volume fraction of dynamic recrystallization and the deformation homogeneity......
elevated flow stress models of magnesium alloys[6]. It is commonly believed that the presence of strain softening is attributed to dynamic recovery(DRV) and dynamic recrystallization(DRX). Furthermore... basal plane texture, irrespective of the difference in the initial texture of the samples. Key words: magnesium alloy; hot deformation; texture; dynamic recrystallization  ......
J. Cent. South Univ. (2017) 24: 1121-1132 DOI: 10.1007/s11771-017-3515-8 Stability and control of room mining coal pillars-taking room mining coal pillars of solid backfill recovery as an example... by the traditional caving mining method were significantly influenced by the secondary mining during recovery, the coal pillars would go through a chain-type instability failure. Because of this limitation......
of dynamic behaviors shows that the model has three kinds of equilibrium points, which represent the patient’s complete recovery without immune ability, complete recovery with immune ability, and HBV...Research on viral dynamic models of hepatitis B virus infectionLequan Min and Xisong Dong Applied Science School, University of Science and Technology Beijing, Beijing 100083, China Information......
to the dynamic recovery occurs in the tungsten particles and the formation of a large number of lath subgrains. As the strain level increases to 0.6, an adiabatic shear band is formed in the specimen...颗粒在应变速率6000 s-1下的动态变形过程示意图 Fig. 11 Schematic diagram of dynamic deformation process of 90W-Ni-Fe alloy at strain rate of 6000 s-1 3 结论 1) 采用应变限位环的方法精确实现了90W-Ni-Fe合金动态冲击载荷下4个不同的应变条件......
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fiber, polyester fiber and mineral fiber were used as additives for asphalt mixture, and the dosages were 0.3%, 0.3%, 0.4%, respectively. Dynamic modulus test using superpave simple performance tester (SPT) was adopted to study the dynamic modulus and phase angle for the control mixture and fiber-modified ones at various temperatures and frequencies. Test results show that the rheological......
magnesium alloy during hot deformation. Microstructure observation shows that dynamic recovery occurs in the initial stage of hot deformation. However, the microstructure turns to recrystallization... quantitative understanding of the dynamic softening during deformation. Two basic major dynamics softening processes are dynamic recovery and dynamic recrystallization, both the processes have a profound......
Trans. Nonferrous Met. Soc. China 25(2015) 1831-1839 Dynamic recrystallization mechanisms during hot compression of Mg-Gd-Y-Nd-Zr alloy Yi-ping WU1,2, Xin-ming ZHANG1,2, Yun-lai DENG1,2, Chang-ping..., China Received 25 July 2014; accepted 17 November 2014 Abstract: Hot compression tests were conducted on a homogenized Mg-7Gd-4Y-1Nd-0.5Zr alloy at 450 °C and a strain rate of 2 s-1. Dynamic......