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Solidification crack susceptibility of aluminum alloy weld metals LIU Ren-pei(刘仁培)1, DONG Zu-jue(董祖珏)2, PAN Yong-ming(潘永明)2 1. College of Materials Science and Technology, Nanjing University...; Abstract: The susceptibilities of the three aluminum alloys to solidification crack were studied with trans-varestraint tests and tensile tests at elevated temperature......
. And the results show that the under-aged sample possesses the best resistance to fatigue crack propagation and the most tortuous and bifurcated crack path. For all samples, the fatigue crack growth rate in the rupture region was inversely proportional to yield strength. Key words: Al–Zn–Mg–Sc–Zr alloy; annealing treatment; microstructures; fatigue crack growth rate; fatigue crack path Cite this article......
EFFECTS OF LINEAR ELECTROMAGNETIC STIRRING ON THE SOLIDIFICATION STRUCTURE OF BILLET G.L.Jia1,H.L.Zhang1,J.C.He1,E.G.Wang1 (1.Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, NortheasternUniversity, Shenyang 110004, China) Abstract:The effects of linear electromagnetic stirring (EMS) on the solidification steacture of billet were investigated......
is selected. On the contrary, when the eutectic melt is cooled from temperature below 1 977 ℃, the solidification obeys the Al2O3/YAG/ZrO2 equilibrium eutectic path, and is relatively easy to form... Effects of laser processing parameters on solidification microstructures of ternary Al2O3/YAG/ZrO2 eutectic in situ composite and its thermal property SU Hai-jun(苏海军), ZHANG Jun(张 军......
Undercooling and rapid solidification of Nb-Si eutectic alloys studied by long drop tube WANG Yu-ren(王育人), DONG Shu-yong(董树勇), WEI Bing-chen(魏炳忱), LI Wei-huo(李维火) National Microgravity Laboratory... turbine applications. The two-phase Nb/Nb5Si3 in situ composites exhibit a good balance in mechanical properties. Using the 52 m drop tube, the effect of undercooling and rapid solidification......
Influence of Solidification Rate on Microstructures of Cast Strips and Corresponding Sintered NdFeB Magnets Yu Dunbo1,Yan Shihong1,Li Zongan1,Li Shipeng1,Xu Jing1,Li Hongwei1 (1.National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co. Ltd., Beijing 100088, China) Abstract:The influences of solidification......
Continuous and directional solidification technology of titanium alloys with cold crucible CHEN Rui-run(陈瑞润), DING Hong-sheng(丁宏升), GUO Jing-jie(郭景杰), BI Wei-sheng(毕维生), FU Heng-zhi(傅恒志) School... solidification of titanium alloys with cold crucible were carried out in a multifunctional electromagnetic cold crucible apparatus. Parameters and factors influencing the surface crack and macrostructure......
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