Creeping Behavior of Mg-5Y-3Sm-0.8Ca-0.5Sb Alloy AITranslate

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Chinese Library Classification Number:TG146.2[金属学及工艺—金属材料]

Citation Information:

The creeping behavior of Mg-5Y-3Sm-0.8Ca-0.5Sb alloy at 200℃ and 50 MPa or 70 MPa was investigated by creeping tests, microstructure observation and theoretic calculation. The results show that the alloy has similar creeping resistance at 200 ℃ compared with that of commercial heat resistant magnesium alloy WE43. With the increase of creeping stress,the grain size of the alloy has no change,but the grain boundary is unobvious. The calculation result of stress exponent indicates that the creeping behavior is controlled by diffusion and grain boundary sliding.