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of dynamic recovery (DRV). CERRI et al[4] made a comparative study on the hot workability of 7012 and 7075 alloys after different pretreatments, indicating that the peak flow stress of various treated Al-Zn..., and the soften mechanism of the alloy during high temperature deformation transforms from dynamic recovery to continuous dynamic recrystallization with decreasing Z value. JIN et al[6] reported......
, as it affects the stored energy. The stored energy is regarded as a driving force for recrystallization. Deformation at a high temperature reduces the stored energy due to dynamic recovery, which... increase and interact, and dynamic recovery makes dislocation re-array, leading to LAGBs formation and increasing, as shown by red lines in Figs. 6(a) and (b). Then LAGBs absorb dislocations, increasing......
strains of 0.3, 0.5, 0.7, 0.9 and 1.2, respectively. The results show that the flow stress decreases with increasing temperature. The microstructure undergoes dynamic recovery mainly at small strains. With strains increasing, dynamic recovery and dynamic recrystallization are enhanced and geometrical dynamic recrystallization occurs at high strains. At 950 ℃, dynamic recrystallization happens......
J. Cent. South Univ. Technol. (2008) 15(s1): 261-265 DOI: 10.1007/s11771-008-359-2 Dynamic damping property of magnetorheological elastomer LI Jian-feng(李剑锋), GONG Xing-long(龚兴龙) (CAS Key...) is a new kind of smart materials, its dynamic mechanic performances can be controlled by an applied magnetic field. MRE is usually used as a stiffness-changeable spring in the semi-active vibration......
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on EMCB system and curve of ideal braking force distribution, and the dynamic model of EMCB and control strategy were established by Matlab/Simulink. The braking energy recovery, braking stability... strength. The braking force distribution strategy ensures braking stability and braking comfort, which can maintain a high recovery efficiency and increase the driving range of electric vehicles......
Recovery of germanium from lignite by microorganismZHU Yun, GUO Yuxia, and GUO ShuxianDepartment of Metallurgy, Kunming University of Science and Technology, Kunming 65009, China摘 要:<正>The recovery of Ge from lignite by microorganism includes two stages: (1) the breaking-down of Ge complex of humus in lignite into simple compounds assisted......
region. Furthermore, the dynamic nature of exhaust gas energy flow was also analyzed based on exhaust pressure wave actions, gas velocity as well as temperature fluctuations. The results show that exhaust gas energy has a greater recovery potential at high speed and high load operational conditions; the major exhaust gas energy is thermal energy, followed by pressure energy, while the kinetic energy......
STUDY ON DYNAMIC J-INTEGRAL OF MECHANICAL HETEROGENEOUS WELDED JOINT D.Zhang1,X.Y.Li2,F.Q.Tian1,Y.W.Shi2,D.Y.He2 (1.Institute of Composite Materials, Shanghai Jiaotong University, Shanghai 200030... great effect on dynamic fracture behaviour of welded joints. In the present investigation, dynamic response curve and dynamic J-integral of practical undermatched welded joint and whole base and whole......
Recovery of valuable elements from spent YBa2Cu3O7-x/Ag composite superconductor bulks Li Feng-hua(李凤华), Li Ying-nan(李英楠), Zhang Cong-cong(张聪聪), Fan Zhan-guo(樊占国) School of Materials... on recovery ratio and purity of silver were studied. The chemical analysis proves that the purity of silver ingot is 95.86%. The recovery ratio of silver is calculated to be 92.56%. The loss of silver may......
