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Growth restriction effects during solidification of aluminium alloys CHEN Zhong-wei(陈忠伟), HE Zhi(何 志), JIE Wan-qi(介万奇) State Key Laboratory of Solidification Processing... with the experimental behaviors for Al-Ti and Al-Cu alloys with lower solute content. Key words: growth restriction; constitutional undercooling; solidification; aluminium alloys ......
Effect of united refining and modification on mechanical properties of A356 aluminium alloys ZUO Xiu-rong(左秀荣), ZHONG Zhi-guo(仲志国) Key Laboratory of Material Physics, Ministry of Education..., B, RE and Sr additions obtain the best mechanical properties in T6 treatment. Key words: A356 aluminium alloys; grain-refining aluminium alloys (GRAI); modification; refining; mechanical properties......
Conception of tooling adapted to thixoforging of high solid fraction hot-crack-sensitive aluminium alloys G. VANEETVELD1, A. RASSILI1, J. C. PIERRET1, J. LECOMTE-BECKERS2 1. Thixo Unit, B56... aluminium alloys at high solid fraction by modifying process parameters like forming speed, tool temperature and tool thermal protector. Thus an optimum in terms of thermal exchanges has to be found......
oxidation; ceramic coatings; aluminium alloys CLC number: TG174.453 Document code: A 1 INTRODUCTION Aluminium and its alloys have found wide application in engineering, owing to their good specific strength and light mass. However, a poor surface hardness and a relatively low yield strength of aluminium alloys make these materials vulnerable to wear in high load situations, which limits......
The Rare Earth Aluminium Alloys in China唐定骧,汪良宣,赵敏寿,鲁化一,张密林,崔明姬摘 要:<正> The development and application of rare earth aluminium alloys began... temperature,a new technique was invented that rare earth compounds were addedto commercial aluminium electrowinning cell to produce RE-Al alloys directly.It opened the way for the appli-cation of rare earths......
words: thixoextrusion; A357; aluminium alloy; solid fraction; semi-sold 1 Introduction Thixoforming process is a semi-solid metal processing route (SSM), which involves forming of alloys in the semi... is an important parameter for aluminium alloys thixoforging to obtain good parts quality[9]. Another possibility to modify thermal exchanges is to vary the material flow speed, which also influences......
Depolarised gas anodes for aluminium electrowinning G. M. HAARBERG1, E. KVALHEIM1, A. P. RATVIK1, S. J. XIAO1, T. MOKKELBOST2 1. Department of Materials Science and Engineering, Norwegian... carbon anodes are used in the electrowinning of aluminium by the Hall-Heroult process. Emissions of CO2 may be eliminated by introducing an inert oxygen evolving anode, which however will require......
Hydrogen Fixation Effect of Rare Earths in Pure Aluminium and Aluminium Alloys李道韫,徐连棠,张会义摘 要:<正> The areal distribution of some elements in the rare earth bearing spheroidal phases in pure aluminium andAl-Mn alloys was studied by SIMS(secondary ion mass spectrometry).The results show that cerium,iron.silicon and hydrogen are significantly......
Microscopic characterization of semi-solid aluminium alloysYa-lin Lu1,2),Miao-quan Li1),Xing-cheng Li2),and Xiao-ping Li2) 1) School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China 2) School of Materials Engineering,Jiangsu Teachers University of Technology,Changzhou 213000,China摘 要:The microstructural......
Trans. Nonferrous Met. Soc. China 20(2010) s837-s841 Influence of surface liquid segregation on corrosion behavior of semi?solid metal high pressure die cast aluminium alloys E. P... and that of the Cu-enriched surfaces of the SSM-HPDC alloys. Key words: semi-solid metal (SSM) forming; wrought aluminium alloys; alloy 7075; alloy 2024; corrosion; surface liquid segregation 1......
