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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......
Dynamic simulation of drum level sloshing of heat recovery steam generatorCAO Xiao-ling (曹小玲)1, 2, PI Zheng-ren (皮正仁)1, JIANG Shao-jian (蒋绍坚)2,YANG Wei-hong (杨卫宏)3, B. Wlodzimerz3(1. School.... Division of Energy and Furnace Technology, Royal Institute of Technology (KTH), Stockholm 10044, Sweden)Abstract:Drum level sloshing is the latest discovery in the application of heat recovery steam......
Dynamic test on waste heat recovery system with organic Rankine cycleWANG Zhi-qi(王志奇)1, 2, LIU Li-wen(刘力文)1, XIA Xiao-xia(夏小霞)1, ZHOU Nai-jun(周乃君)2(1. Institute of Mechanical Engineering, Xiang Tan... and monitoring of the organic Rankine cycle(ORC) system so to avoid the occurrence of unwanted conditions. A small scale waste heat recovery system with organic Rankine cycle was constructed and the dynamic......
is intermediate, and only dynamic recovery takes place if Z parameter is high. Key words: hot deformation; continuous dynamic recrystallization; discontinuous dynamic recrystallization; Zenner-Hollomon parameter CLC number: TG111.7; TG146 Document code: A 1 INTRODUCTION Its commonly believed that the mechanism of dynamic restoration in aluminum during hot deformation is essentially dynamic recovery......
A new evaluation method of gel’s dynamic sealing characteristic in porous mediaWU Zhi-wei(吴志伟)1, 2, YUE Xiang-an(岳湘安)1, 2, LI Li-feng(李立峰)3, ZHANG Yi(张义)4, YANG Zhi-guo(杨志国)1, 2(1. Key Laboratory... that the effectiveness and efficiency of water shutoff using gel is mostly dependent on the gel dynamic sealing properties in the porous media. Firstly the gelation strength and gelation time of polymer gel......
Dynamic phase-mining optimization in open-pit metal mines GU Xiao-wei(顾晓薇), WANG Qing(王 青), GE Shu(葛 舒) College of Resource and Civil Engineering, Northeastern University, Shenyang 110004, China... to simultaneously optimize the above three aspects, with the objective of maximizing the overall net present value. In this model, the dynamic nature of the problem is fully taken into account......
of specimen differ from initial ones affected by deformation conditions, and that the softening mechanism is dynamic recovery. A new approach was proposed to analyze the flow stress character directly... dynamic recovery based on the data obtained under variable deformation temperature. Key words: aluminum alloy 6A10; flow stress model; dynamic recovery  ......
types as working hardening(550-600 ℃, α+β phase), dynamic recrystallization (650-900 ℃, α+β phase) and dynamic recovery(950-1 000 ℃, β phase). The main softening mechanism is dynamic recrystallization(DRX) of α phase in α+β phase zone and dynamic recovery(DRV) of β phase in β phase zone. As the stain rate decreases dynamic recrystallization of α phase proceeds more adequately in α+β zone and the β......
), dynamic recovery(DRV) and dynamic recrystallization(DRX) may occur simultaneously[6, 7], resulting in grain refinement and reduction of deformation resistance. For magnesium alloys, due to their lower...]Humphreys F J. Network model for recovery and recrystallization [J]. Script Mater, 1992, 27(1): 1557-1565. [14]Ryan N D, McQueen H J. Dynamic softening mechanisms in 304 austenitic stainless steel [J......
of Northwestern Polytechnical University, 2001, 19(3): 476-479. [13] NEMAT-NASSER S, ISAACS J B, STARRETT J E. Hopkinson techniques for dynamic recovery experiments[J]. Proceedings of the Royal Society London... Johnson-Cook dynamic constitutive relationship for TC16 titanium alloy YANG Yang(杨扬), ZENG Yi(曾毅), WANG Bing-feng(汪冰峰) School of Materials Science and Engineering, Central South University......