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Strengthening and stress drop of ultrafine grain aluminum after annealing REN Jiang-wei(任江伟)1, SHAN Ai-dang(单爱党)2 1. School of Materials Engineering, Shanghai University of Engineering Science... grain pure aluminum was produced by equal channel angular pressing and cold rolling, the deformed aluminum was annealed at 200 °C for 1 h. The tensile curves of deformed and annealed aluminum show......
Phase structure of ZK60-1Er magnesium alloy compressed at 450 ?C WANG Zhong-jun(王忠军)1, YANG Qing-xiang(杨庆祥)2, QIAO Jun(乔 军)1 1. School of Materials Science and Metallurgy, University... 2010 Abstract: The phase structure of ZK60-1Er magnesium alloy thermally compressed at the temperature of 450 ?C and the strain rate of 1×10-4 s-1 was determined by transmission electron microscopy......
Computational algorithms for simulating the grain structure formed on steel billets using cellular automaton and chaos theoriesA.Ramírez-López1,2,3,G.Soto-Cortés1,J.González-Trejo11. Department... a graphical representation of different grain structures formed.The grain structure obtained is displayed on the computer screen using a graphical user interface (GUI).The chaos theory and random......
Microstructure evolution and hot deformation behavior of carbon nanotube reinforced 2009Al composite with bimodal grain structureK.Ma1,2,Z.Y.Liu1,S.Bi1,2,X.X.Zhang1,B.L.Xiao1,Z.Y.Ma1,31. Shi-changxu...(CNT/2009Al) composite were studied by establishing processing map and characterizing the microstructure evolution.The results indicate that the grain size in the ultra-fine grained zones was stable during hot......
100081, China Received 19 May 2010; accepted 9 September 2010 Abstract: The structure of ultrafine grain is formed at the crater bottom of pure iron target under hypervelocity impact... and spherical grains by melting[9], special lamellar-shape fine grain structure is composed of irregular elongated spherical grains arranging along the direction of flow lines (Fig.2(b)). The material just near......
Evaluation of dynamic development of grain structure during friction stir welding of pure copper using a quasi in situ methodX.C.Liu,Y.F.Sun,T.Nagira,K.Ushioda,H.FujiiJoining and Welding Research..." name="ChDivSummary">By employing a quasi in situ method, we investigated the dynamic evolution of the grain structure considering the material flow, strain, and strain rate in the friction stir welding......
Effect of the simultaneous application of a high static magnetic field and a low alternating current on grain structure and grain boundary of pure aluminumChengshuai Li1,Shaodong Hu1,Zhongming... and a low alternating electric current on the solidification structure of pure aluminum has been investigated. Results show that the refinement of the solidification structure is enhanced by the electric......
and their ability to achieve a fully equiaxed grain structure in DC casting [J]. Light Metals, 2003: 953-959. [17] Small C M, Prangnell P B, Hayes F H, Hardman A. Microstructure and grain refining efficiency of TiC... Performance comparison of AlTiC and AlTiB master alloys in grain refinement of commercial and high purity aluminum LI Jian-guo(李建国)1, HUANG Min(黄 敏)1, MA Mo(马 蓦)1, YE Wei(叶 炜)1, LIU Dong-yu(刘东雨)1......
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Trans. Nonferrous Met. Soc. China 24(2014) 1301-1306 Structure uniformity and limits of grain refinement of high purity aluminum during multi-directional forging process at room temperature Qing-feng... on the structure uniformity due to deformation uniformity and the grain refinement limitation with very high strains. The results show that the fine grain zone in the center of sample expands gradually......
