| 摘要 |
A Zn-Al alloy excellent in elongation, and a method for producing the same are provided. The Zn-Al alloy comprises Zn in a range of 68 to 88% by mass and the remainder including Al and unavoidable impurities, and has a structure with beta phases finely dispersed in respective alpha phases or respective alpha' phases, not more than 5 mum in average grain size, a macrosegregation value of Al in the structure being less than 3%, wherein lamellar structures at a central part of the structure is at not higher than 30% by volume, and a difference in average hardness between the central part and a surface layer zone of the structure is not more than 15%, so that the Zn-Al alloy is improved in respect of elongation and uniformity.
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