In recent years, many researchers have been focusing on improving the discharge properties of AZ31 magnesium alloy for battery applications. In this paper, the equal‐channel angular pressing (ECAP) is used as a preferred way of refining the microstructure to enhance the discharge characteristics of AZ31 alloy as the anode for seawater batteries. The electrochemical discharge behaviors of ECAP‐processed AZ31 alloy are investigated along extrusion surfaces, normal cross‐sections, and transverse cross‐sections and compared with as‐cast and homogenized samples. On the basis of the findings, the anode efficiency is improved effectively through the ECAP method, with approximate isotropy in the discharge behaviors of refined AZ31 alloy. The enhanced discharge performance can be attributed to the refined grains, uniform grain sizes, and dispersed β‐Mg₁₇Al₁₂ after ECAP processing.

中文翻译：

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显微组织演变对AZ31合金作为海水电池阳极的放电性能的影响

近年来，许多研究人员一直致力于改善用于电池应用的AZ31镁合金的放电性能。在本文中，等通道角挤压（ECAP）被用作细化微结构以增强AZ31合金作为海水电池阳极的放电特性的一种首选方法。对ECAP处理的AZ31合金沿挤压表面，法向横截面和横截面的电化学放电行为进行了研究，并与铸态和均质样品进行了比较。根据这些发现，通过ECAP方法可以有效地提高阳极效率，在精炼AZ31合金的放电行为中具有近似各向同性的特性。放电性能的提高归因于细化的晶粒，均匀的晶粒尺寸和分散的β-MgECAP处理后的₁₇ Al ₁₂。