共搜索到12590条信息，每页显示10条信息，共1259页。用时：0小时0分0秒414毫秒
and characterize the crystalline phases in the continuous cooling process. The results showed that appropriate addition of CeO2 could avoid the precipitation of CaO and decrease the viscosity of the mould...Viscous properties of new mould flux based on aluminate system with CeO2 for continuous casting of RE alloyed heat resistant steel亓捷1,刘承军1,李春龙2,姜茂发11. Key Laboratory for Ecological Metallurgy......
and characterize the crystalline phases in the continuous cooling process. The results showed that appropriate addition of CeO2 could avoid the precipitation of CaO and decrease the viscosity of the mould...Viscous properties of new mould flux based on aluminate system with CeO2 for continuous casting of RE alloyed heat resistant steel亓捷1,刘承军1,李春龙2,姜茂发11. Key Laboratory for Ecological Metallurgy......
was applied to calculate the temperature distribution of copper thin-slab continuous casting with different casting speeds and cooling conditions. In the meantime, the effects of casting speed and cooling... simulation of temperature field in continuous casting of copper thin-slab LI Jin-shan, MEI Jin-na, CHEN Zhong-wei, HU Rui, KOU Hong-chao (State Key Laboratory of Solidification Processing......
and differential calorimetry [J]. Scripta Materialia, 2000, 42(7): 675-680. [9] EVANCHO J W, STALEY J T. Kinetics of precipitation in aluminum alloys during continuous cooling [J]. Metallurgical Transactions A, 1974...) during different rate cooling processes. Based on the DSC results, the kinetics analysis was carried out. The results indicate that the precipitation of η phase is the predominant transformation......
; microstructure; continuous cooling transformation; [全文内容正在添加中] ......
J. Cent. South Univ. Technol. (2011) 18: 16-22 DOI: 10.1007/s11771-011-0652-3 Continuous FEM simulation of multi-pass plate hot rolling suitable for plate shape analysis ZHANG Jin-ling(张金玲... reduced. Based on these, the factors influencing plate profile, such as the roll-bending force, initial crown, thermal crown and heat transfer during rolling and inter-pass cooling can be taken into account......
and transmission electron microscopy results reveal that both continuous precipitation and discontinuous precipitation existed in the hard-state Cu-l.9Be-0.3Ni-0.15Co alloy during the whole aging process;the sequence of continuous precipitation is G.P.zone →γ″→γ′→γ.Furthermore,the precipitation transformation mechanism of softstate alloy is homogeneous nucleation,while hard-state alloy shows......
连续退火炉中保护气氛及结构特性对带钢冷却特性的影响潘良明1,毛鸣汐1(1.重庆市重庆大学动力工程学院)摘 要:采用标准k-ε紊流模型,对连续退火炉中快冷段局部带钢的二维非稳态温度场进行CFD模拟,模拟与实际结果吻合较好.研究结果表明:从温度均匀性和冷却速度来看,当氢气体积分数为30%时,冷却效果最佳;控制最优的冷却速度可以通过控制带钢初始温度,带钢与风箱间距和冷却气体喷出速度,冷却介质的含量等参数来实现. 关键词:连续退火； 快速冷却； 非稳态； 数值模拟......
J. Cent. South Univ. (2012) 19: 2403-2410 DOI: 10.1007/s11771-012-1288-7 Simulation of thermomechanical behavior during continuous casting process based on MiLE method XIA Yun-jin(夏云进)1,2... during continuous casting process of steel YF45MnV. The simulation results are basically in agreement with the measured data. The delaying period at the beginning of solidification is about 0.1......
J. Cent. South Univ. (2016) 23: 508-514 DOI: 10.1007/s11771-016-3096-y Microstructural evolution in a powder metallurgical Ti-7Mo alloy with continuous oxygen gradient CHEN Zhi-xing(陈智星)1, LIU Bin(刘...., Ltd., Zhangzhou 363000, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: A titanium alloy containing continuous oxygen gradient was prepared by powder......
