Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 710, Issue -, Pages 27-37Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2017.10.065
Keywords
Al-Mg-Si alloy cable; Deformation; Annealing; Yield strength; Electrical conductivity
Categories
Funding
- Jinbei Electric Cable Co. Ltd. [043010100, 51701039]
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Al-Mg-Si alloys are medium-strength high-conductivity alloy cable materials that are ideal candidates for electrical engineering applications, but their related electrical conductivity, mechanical properties and textures must be studied in greater detail before such applications can be realized. Different deformation strains (0.98, 1.73 and 2.24) and annealing temperatures (200-500 degrees C) were applied to optimize these properties in Al-Mg-Si alloy cables. The results show that the recrystallized Al-Mg-Si alloy cables exhibit medium yield strength and higher electrical conductivity compared to the non-recrystallized Al-Mg-Si alloy cables with larger average grain sizes. After annealing, the main contributors to the overall texture were the Brass and Goss textures. According to theoretical evaluations, the significant increase in electrical conductivity and decrease in yield strength can be attributed to the decreasing dislocation density and changes to the grain boundaries.
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