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Growth behavior of ultrafine austenite grains in microalloyed steel Shengjie YAO1,Linniu DU1,Guodong WANG1,Xianghua LIU1 (1.State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,China) Abstract:Ultrafine austenite grains (UFAGs) with size of 1-5 μm were prepared through repet-itive treatment, four times, of rapid heating and quenching, and the growth behaviors......
for the growth mechanism of electroless coating over the surface. Key words: Mo-Cu; electroless plating copper; powders; growth mechanism 1 Introduction Mo-Cu composites have been investigated...; (a) Powder coated for 1 min; (b) Powder coated for 3 min; (c) Finished coated powder Fig.6 Cross-sectional micrograph of coated powders 3.3 Growth model of electroless coating......
. The results show that the mean grain size of the as-annealed material is sensitive to the annealing temperature and cold drawn area reduction. Upon annealing symmetrical grain growth takes place in the AZ31 wires of cold drawn area reduction 12.2% under all the investigated annealing conditions, while three different stages of grain size refinement, normal grain growth and abnormal grain coarsening......
Trans. Nonferrous Met. Soc. China 22(2012) 2212-2219 Modeling of equiaxed and columnar dendritic growth of magnesium alloy WU Meng-wu1, 2, XIONG Shou-mei1, 2 1. Department of Mechanical Engineering... Abstract: Based on the cellular automaton (CA) method, a numerical model was developed to simulate the dendritic growth of magnesium alloy with HCP crystal structure. The growth kinetics was calculated......
Trans. Nonferrous Met. Soc. China 25(2015) 1391-1398 Effect of growth rate on microstructure and solute distribution of Al-Zn-Mg alloy A. L. RAMIREZ-LEDESMA1,2, R. A. 1, J. CHAVEZ-CARVAYAR1, O... was unidirectionally solidified to determine morphological transition and solute distribution by a modification of the Bridgman technique for crystal growth with growth rates ranging from 4-500 μm/s......
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growth rate causes an in-crease of undercooling but a decrease of lamellar spacing,while increasing temperaturegradient leads to a decrease of lamellar spacing.The computed results are in goodagreement with experimental observations. Key words:irregular eutectic; lamellar spacing; undercooling; growth rate; [全文内容正在添加中] ......
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: TQ153.13 文献标志码:A Research development of tin whisker spontaneous growth on plating surface SHI Hong-chang, XIAN Ai-ping (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China) Abstract: The spontaneous growth of tin whiskers on plating surface is a scientific phenomenon which......
:A Mechanisms and questions of tin whisker growth ZHAO Zi-shou, XIAN Ai-ping (Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang... whisker growth, such as the polymorphism of morphology, the uncertainty in growth position, and so on, which had already been observed by some researchers were summarized. The tin whisker growth......