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, Central South University, Changsha 410083, China) Abstract: By analyzing the crystal growth habit of gibbsite theoretically using Morphology program, the morphology character of crystal grain... 氢氧化铝晶体生长习性的Morphology分析 吴争平,尹周澜,陈启元,李 洁 (中南大学 化学化工学院 化学工程与技术博士后流动站,湖南 长沙,410083) 摘 要:对氢氧化铝晶体生长习性进行Morphology理论研究,明确氢氧化铝晶粒长大后的晶粒形态特征及氢氧化铝的理论晶体生长习性.首先,用BFDH法说明了生长过程中最重要的面；其次,采用晶体......
; grain size; grain morphology; AZ91D alloy ...; 1 Introduction The primary crystal morphology and grain size are the two important factors influencing the mechanical......
, the nucleation rate, morphology and grain size of primary α(Al) in A356 prepared by low superheat pouring and slightly electromagnetic stirring with the rod are markedly improved. Under the condition... of preparation of semi-solid slurry, the refining of grain size and improvement of grain morphology by controlling pouring temperature or low pouring temperature were realized[1]. Because of the solidifying......
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and growth to increase creep-fatigue life. Key words:cavity nucleation factor; grain boundary serration; carbide morphology; austenitic stainless steel; grain boundary cavitation; [全文内容正在添加中] ...EFFECTS OF MODIFICATION OF THE CARBIDE CHARACTERISTICS THROUGH GRAIN BOUNDARY SERRATION ON CREEP-FATIGUE LIFE IN AUSTENITIC STAINLESS STEELS S.W.Nam1,H.U.Hong2,K.J.Kim1,K.S.Min3 (1.Dept.......
; surface morphology; foreign grain; sublimation method ... microphotographs of etched FG surfaces: (a) 6H-SiC (0001)-Si surface containing FG; (b) Etch pit morphology of FG surface; (c) Stacking faults and low angle grain boundaries (LB) morphology; (d......
(XRD). The results show that the Al-3Ti-0.2C-1RE grain refiner is composed of α-Al, TiAl3, TiC and Ti2Al20Ce phases. Compared with Al-3Ti-0.2C refiner, the morphology of TiAl3 phase is changed...Microstructure and phase forming process of Al-3Ti-0.2C-1RE grain refinerZHAO Hong-liang(赵红亮)1, GUAN Ren-guo(管仁国)2, LI Miao(李苗)1, YUE Jin-sheng(岳金胜)1, GAO Ya(高雅)1(1. College of Materials Science......
Microstructure and grain boundary morphology evolution of a novel Co-9Al-9W-2Ta-0.02B alloy doped with yttriumJian-Qiang Ma,Fei Zhong,Shu-Suo Li,Jiang-Bo ShaSchool of Materials Science and Engineering, Beihang University摘 要:The microstructures and grain boundary morphologies of a novel Co-9 Al-9 W-2 Ta-0.02 B alloy doped with yttrium(Y......
Influence of synthesis temperatures on the crystalline grain growth and morphology of lanthanum magnesium hexaaluminateJunbin Sun1,Jinshuang Wang1,Wenzhi Huang2,Xin Zhou1,Lifen Li1,Jianing...(SEM). It was observed that the crystalline grain size of LMA was not only dependent on the preparation temperature but also on its powder morphology. In the temperature range of 1300 e1550℃, LMA......
