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The orthorhombic S phase (Al2CuMg) in Al-Cu-Mg based alloys has been considered as an important phase responsible to the high strength of the alloys. The precipitation crystallography of S phase has... Role of misfit in precipitation crystallography in non-ferrous metals GU Xin-fu(顾新福), ZHANG Wen-zheng (张文征), ZHANG Min(张敏), YE Fei(叶飞) Laboratory of Advanced Materials, Department of Materials......
phase particles, MPa; f is the volume fraction of precipitates, %; dp can be identified as the average diameter of the precipitation particles, μm. Fig. 1 Calculation results of precipitation behavior in Ti micro alloyed steels: Assuming that there is no phase transition at 800 °C, the precipitation behavior at 800 °C is investigated. Due to the large size of the TiN particles, it has been......
Computer simulation for precipitation process of θ (Ni3V) and γ′ (Ni3Al) with microscopic phase-field method HOU Hua(侯 华)1, XU Hong(徐 宏)2, ZHAO Yu-hong(赵宇宏)2 1. College of Materials Science... June 2006 Abstract: With the microscopic phase-field model, the precipitation process of aged alloys was explored by computer simulation, which could clarify some discussional views......
PRECIPITATION AND GROWTH OF PEROVSKITE PHASE IN TITANIUM BEARING BLAST FURNACE SLAG T.P. Lou1,Z.T. Sui1,L.N. Zhang1,L. Zhang1,Z.Z. Guo1 (1.School of Materials and Metallurgy, Northeastern... and promoted its growth. Key words:perovskite phase; Ti-bearing blast furnace slag; precipitation; additive agent; [全文内容正在添加中] ......
Computer simulation of γ′ and θ phase precipitation of Ni-Al-V alloy using microscopic phase-field method LI Yong-sheng(李永胜), CHEN Zheng(陈 铮),WANG Yong-xin(王永欣), Lu Yan-li(卢艳丽) (School... temperature and γ′ phase precipitates earlier than θ phase at 1000K and 1120K. With the temperature decreasing, the velocity of precipitation quickens, the quantity of θ phase increases and the size reduces......
Periodical attenuation of Al(OH)3 particles from seed precipitation inseeded sodium aluminate solution WU Yu-sheng(吴玉胜)1, ZHANG Di(张 迪)1, LI Ming-chun(李明春)1, BI Shi-wen(毕诗文)2, YANG Yi-hong... the decrease of the specific surface area of seeds, which is the major reason causing explosive attenuation of Al(OH)3 particles in seed precipitation process. Key words: Bayer process; sodium......
of solute atoms frequently bring about grain boundary precipitation of a second phase because of its making the solubility limit of the solute surpassed at grain boundaries. Until now the kinetic...GRAIN-BOUNDARY PRECIPITATION UNDER IRRADIATION IN DILUTE BINARY ALLOYS S.H.Song1,J.Liu1,R.G.Faulkner2,Z.X.Yuan1 (1.School of Materials and Metallurgy, Wuhan University of Science and Technology......
peak aged at 160 oC. Correspondingly, the possible reasons for such phenomena are discussed. Key words: ageing temperature; precipitation; Al–Cu–Li–Mn–Zr alloy; T1 phase; χ (Al5Cu6Li2) phase Cite... will be the mainstay on the contrary. Moreover, numerous studies have shown that minor solute additions of Mg, Ag and Zn to Al–Cu–Li alloys can promote the precipitation of the T1 phase and precipitate......
Effects of RE and Sr additions on dendrite growth and phase precipitation in AZ91D magnesium alloy ZHOU Ji-xue(周吉学), WANG Jie(王 杰), WANG Jing(王 晶), YANG Yuan-sheng(杨院生) Institute of Metal... of rare earth (RE), Sr and RE + Sr on the dendrite growth and phase precipitation in AZ91D magnesium alloy were studied, respectively. The results show that the microstructure is refined......