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Effects of secondary precipitation on recrystallization in Co-base superalloy DZ40M ZHAO Yang(赵 阳), WANG Lei(王 磊), YU Teng(于 腾), SONG Xiu(宋 秀) Key Laboratory for Anisotropy and Texture... on the recrystallization of directionally solidified cobalt-base superalloy DZ40M. It is found that the secondary M23C6 precipitation influences the size and shape of the recrystal grains. When the annealing......
Effects of Rare Earth on Behavior of Precipitation and Properties in Microalloyed Steels 王怀斌1,陈邦文2,唐历1,林勤3,李联生3,朱兴元2 (1.Panzhihua Iron and Steel (Group;2.National Enterprise Technology Center,Wuhan Iron and Steel (Group;3.Department of Physical Chemistry,University of Science and Technology Beijing, Beijng 100083,China) Abstract:The influence of rare earths on the behavior of precipitation......
合金;时效;析出强化;粗化Aging and precipitation evolution of Al-Er-Zr alloysLI Yan, WEN Sheng-ping, GAO Kun-yuan, HUANG Hui, NIE Zuo-ren(School of Material Science and Engineering, Beijing University...-Er-Zr, the hardness has a second peak as synergetic precipitation of Er and Zr; the second is 53.5HV, which is significantly higher than the peak hardness of Al-Er binary alloy. The Al3(Er1-xZrx......
; 文献标识码:A 文章编号:1672-7207(2008)01-0007-05 Preparation of Fe-coated Si3N4 composite powder by heterogeneous precipitation... composite powder was synthesized by the heterogeneous precipitation-thermal reduction process. SEM of Fe/Si3N4 composite powder and Si3N4 without conductive coating were compared, and the structures......
optimization model was established to minimize the completion time of command sequence on the basis of considering the influence of storage location assignment and command sequence sorting on the operation time comprehensively. The insert method and exchange method were introduced to construct search neighborhoods of storage location assignment and command sequence sorting, and the influence......
Effect of precipitation on internal friction of AZ91 magnesium alloy LIU Shu-wei(刘树伟), JIANG Hai-chang(姜海昌), LI Xiu-yan(李秀艳), RONG Li-jian(戎利建) Department of Materials for Special Environments, Institute of Metal Research,Chinese Academy of Sciences, Shenyang 110016, China Received 23 September 2009; accepted 30 January 2010 Abstract: The effect of precipitation on the internal......
Trans. Nonferrous Met. Soc. China 25(2015) 544-551 Phase-field study on competition precipitation process of Ni-Al-V alloy Yan-li LU, Guang-ming LU, De-wei JIA, Zheng CHEN State Key Laboratory... computer simulation program for the precipitation sequence and microstructure evolution of the ordered intermetallic compound γ′ and θ in ternary Ni75AlxV25-x alloy were studied. The simulation results......
proposed technique that makes it promising for determination of combinatorial problems of FACTS devices location and setting in large scale power systems. Key words: strength Pareto multi-objective evolutionary algorithm; static var compensator (SVC); thyristor controlled series capacitor (TCSC); static voltage stability margin; optimal location 1 Introduction For many years, voltage collapse......
; 文献标志码:A Effects of L-leucine additives on seeded precipitation of sodium aluminate solution LI Jia-pin, YIN Zhou-lan, L? Bao-lin, CHEN Qi-yuan (School of Chemmistry and Chemical engineering ,Central South University, Changsha 410083, China) Abstract: The effects of L-leucine on the seeded precipitation rate of sodium aluminate solution, the particle size and morphology......