4.6 Article

Achieving Ultra-High-Strength and Good Ductility of the ZK60 Alloy Sheet by High Strain-Rate Rolling

期刊

METALS AND MATERIALS INTERNATIONAL
卷 29, 期 4, 页码 1195-1201

出版社

KOREAN INST METALS MATERIALS
DOI: 10.1007/s12540-022-01282-w

关键词

Mg alloy; Ultrahigh-strength; Fine-grain; Texture; High strain-rate rolling

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A superior combination of ultra-high tensile strength and elongation was achieved in ZK60 sheet through high-strain rate rolling, attributed to the uniform ultrafine-grained structure and low dislocation density.
A superior combination of the ultra-high tensile strength (similar to 419.9 MPa), the yield strength (similar to 376.9 MPa) and the elongation (similar to 14.8%) ZK60 sheet was successfully achieved by high-strain rate rolling. The ultrahigh strength was attributed to the uniform ultrafine-grained structure. The excellent ductility was ascribed to the ultrafine grains, low dislocation density and weakened basal texture in the final structure.

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