Abstract
The application of Magnesium alloy as a lightweight material in high-speed trains can realize an effect of largely reducing the weight of the trains. However, magnesium alloy extrusion profiles are rarely applied in the high-speed trains. A7003-T5 and 5052 aluminum alloys are used as the high-speed train seat-back’s material on high-speed trains recently. The experimental data indicates that the strength of the AZ31B magnesium alloy is 1.3 times of that of 5052 aluminum alloy and the strength of the ZK60A magnesium alloy is 1.21 times of that of A7003-T5 aluminum alloy.The FE analysis results indicate that if the ZK60A and AZ31B magnesium alloy is used as the material of the high-speed seat back instead of the A7003-T5 and 5052 aluminum alloy, it will have a weight loss of the backrest for approximately 33%. In addition, the application of ZK60A and AZ31B magnesium alloy has more advantages in energy-saving, environmental protection and safety control.
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