Abstract The influences of crystallographic texture and grain size on corrosion behaviour were investigated using the Mg alloy AZ31 sheets produced in the following ways: as-extruded (AR), cross rolling (CR) and unidirectional rolling (UR). The corrosion rate was measured for immersion of the AZ31 sheets in 3.5 wt.% NaCl solution using hydrogen evolution, potentiodynamic polarisation curves, and mass loss. The corrosion rate of the AZ31 sheets decreased in the following order: AR, CR, UR. The decrease in corrosion rate was attributed to an increase in basal plane intensity in the crystallographic texture and the reduced grain size.

中文翻译：

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结晶织构和晶粒尺寸对挤压态镁合金AZ31板腐蚀行为的影响

摘要 采用挤压态 (AR)、交叉轧制 (CR) 和单向轧制 (UR) 生产的 AZ31 镁合金板材，研究了晶体织构和晶粒尺寸对腐蚀行为的影响。使用析氢、动电位极化曲线和质量损失测量将 AZ31 片浸入 3.5 wt.% NaCl 溶液中的腐蚀速率。AZ31 板材的腐蚀速率按以下顺序降低：AR、CR、UR。腐蚀速率的降低归因于晶体结构中基面强度的增加和晶粒尺寸的减小。