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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......
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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......
main softening mechanism could be summarized as dynamic recovery and precipitation coarsening for the LCR alloy and dynamic precipitation for the HCR alloy.关键词:...Dynamic softening and microstructural evolution during hot deformation of Al-Cu-Mg-Zr alloys with different homogenization cooling ratesGuo-Wei Bo1,Guan Wang2,Fu-Lin Jiang1,Can Liu1,Rong Chen1,Hui......
s-1,and inspection of the initial austenite grain size at 1150 °C.The resulting stress–strain curves are observed to possess two classifications of behavior,dynamic recovery and dynamic...Effect of Boron Concentration on Dynamic Recrystallization Behavior of Low-Carbon SteelYong-Liang Gao,Xiang-Xin Xue,He YangLiaoning Key Laboratories of Ecological Utilization Technology of Boron......
-Zn-Mg-Cu alloy during annealing. Mechanism for nucleation and its growth of recrystalized grains were discussed. The influence of dynamic recovery on recrystallization behavior was also investigated...%, the microstructure is comprised of dislocation cell structures and subgrains with diameter of 0.3-0.6 μm. Polygonization occurs during dynamic recovery accelerates recrystallization during subsequent annealing......
J. Cent. South Univ. (2012) 19: 633-638 DOI: 10.1007/s11771-012-1049-7 Coupled simulation of BES-CFD and performance assessment of energy recovery ventilation system for office model Yunqing... conservation of the heat recovery ventilator and to investigate the effect of the air supply arrangement. Three types of mixing ventilation are chosen for the analysis of coupling ANSYS/FLUENT......
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......
A dynamic model for railway freight overbookingFENG Fen-ling(冯芬玲), ZHANG Jia-qi(张佳琪), GUO Xiao-feng(郭晓峰) (School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China)Abstract:In order to apply overbooking idea in Chinese railway freight industry to improve revenue, a Markov decision process (dynamic programming) model for railway freight reservation......
