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张敏刚
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期刊论文
Investigation on Behavior of Rare Earth Element Cerium in Aluminum-Lithium Alloys by Internal Friction Method
RARE METALS Vol.19 No.3(2000)204-209，-0001，（）：
The behavior of rare earth element Ce in 2090 Al-Li alloys was studied by the method of low frequency internal friction. The results showed that rare earth element Ce can increase the activation energy of grain boundary and improve the grain boundary strength of alloys. Rare earth element Ce can decrease the tendency of softening of elastic modulus of 2090 Al-Li alloys after heat cycle and keep high elastic modulus of initial state.
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