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Al-Li-Cu-Mg-Zr alloy was processed by accumulative roll bonding (ARB). The microstructure, mechanical properties, and thermal conductivity were investigated. With increasing number of ARB cycles, the microstructure was refined and the processed strips exhibited metallurgical bonding. During ARB processing, the tensile strength was enhanced while the elongation remained in a stable range. The sample...
Mg-9Li-6Al(LA96) and Mg-9Li-6Al-2La(LA96-2La), after solution treatment, were aged at 50°C and 150°C, respectively. The microstructure evolution and hardness variation of the alloys under different aging parameters were investigated. The results show that the morphology of MgLi2Al(θ) phases in LA96 changes from short and rod like to particulate during the aging period, and the size of particulate...
Spray degassing was used to remove hydrogen dissolved in aluminum melt. In order to investigate the effects of different purge gases on aluminum melt during spray degassing, different kinds of purge gases were used in experiments. The results show that, as a purge gas in the process of spray degassing, nitrogen leads in increasing the hydrogen content and inclusion content of the aluminum melt. The...
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