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Study on Aging Kinetics of CuNiSi Alloy ZHAO Dong-mei1,LEI Jing-guo1,LIU Ping1,JING Xiao-tian2 (1.School of Materials Science and Engineering, Henan University of Science & Technology,Luoyang 471003, China;2.School of Materials Science and Engineering,, Xi'an University of Technology, Xi'an 710048, China) 摘要:Precipitation behavior of the early aging stage and the transformation kinetics were......
Isothermal Aging Kinetics in CuZnAl Shape Memory AlloyZengqi ZHAO Lab.of Physics,Baotou Research Institute of Rare Earth,Baotou,014010,ChinaFeixia CHEN Dazhi YANG Dept.of Mater.Eng.,Dalian University... aging kinetics fits in Avrami equation and thetime exponent n decreases with the increase in aging temperature.The apparent activation energyfor the isothermal aging process was measured......
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Thermal stability and curing kinetics of polycarbosilane fibers ZHENG Chun-man (郑春满), LI Xiao-dong (李效东), WANG Hao (王 浩), ZHU Bin(朱 冰) (State Key Laboratory of New Ceramic Fibers and composites...; Abstract: Thermal stability and curing kinetics of polycarbosilane (PCS) fibers were studied by thermogravimetry (TG), Fourier transform infrared spectroscopy(FT-IR). Curing......
Coarsening kinetics of γ’ precipitates in a Re-containing Ni-based single crystal superalloy during long-term agingJiachen Zhang,Lin Liu,Taiwen Huang,Jia Chen,Kaili Cao,Xinxin Liu,Jun Zhang,Hengzhi FuState Key Laboratory of Solidification Processing, Northwestern Polytechnical University摘 要:The morphological evolution and coarsening kinetics of γ......
Interactions between cadmium and multiple precipitates in an Al-Li-Cu alloy: Improving aging kinetics and precipitation hardeningLiang Wu1,2,Yugang Li2,Xianfeng Li1,Naiheng Ma1,2,Haowei Wang1,21...">This work demonstrates significant improvements in both the aging kinetics and precipitation hardening of an Al-Li-Cu alloy with the minor addition of Cd(0.06 at.%). The precipitation hardening effect......
的有效方法是改变MnO2 产物层的结构 , 使其多孔疏松 , 以此增大氧气的扩散系数. 关键词: 碳酸锰;热解;动力学; 中图分类号: TF792 收稿日期:1999-05-04 Kinetics of thermal decomposition of MnCO3 Abstract: The kinetics on the thermal decomposition of MnCO 3 was investigated. The parameters in the kinetic equations were worked out. The results showed that the decomposition reaction of MnCO 3 follows......
aging time by hardness method. HIROSAWA et al [12] analyzed the kinetics characters of the precipitation in the aging treatment of aluminum alloy by the resistance method, and achieved a series... and calculated the kinetics parameters. DONOSO [14] and PAPAZIAN [15] analyzed the kinetics characters of phase transitions in the different aging technologies of the aluminum alloys by the DSC method......
and reduces the precipitated kinetics for Ω phase. Key words: aluminum alloy; aging behavior; microstructure; Ce addition; precipitating kinetics aging time. 0.25% Ce additions decrease both tensile strength and ductility. TEM observation shows that the morphology of Ω precipitate can be modified by the small addition of Ce. The trace Ce affects......