宇航材料工艺2026，Vol.56Issue(4)：101-108,8.DOI:10.12044/j.issn.1007-2330.2026.04.010
Mg-Al-Ca-Mn镁合金在热轧过程中的再结晶行为及其组织调控工艺
Recrystallization Behavior and Microstructural Control During Hot Rolling of Mg-Al-Ca-Mn Magnesium Alloy
摘要
Abstract
This study investigated the effects of homogenization cooling routes and rolling deformation parameters on microstructural evolution and recrystallization behavior during hot rolling of a Mg-1Al-0.3Ca-0.5Mn Mg alloy(AXM10305).After homogenization at 500℃ for 4 h,water cooling and furnace cooling were employed to tailor the initial distribution of second-phase particles,followed by multi-pass hot rolling at 300℃.The deformation microstructures,recrystallization-related evolution,and mechanical properties under different processing conditions were systematically characterized using OM,SEM,EBSD,and room-temperature tensile testing.The results demonstrate that the homogenization cooling route markedly affects the distribution characteristics of Ca-rich second phases,which in turn alters the deformation microstructure and recrystallization evolution during hot rolling.Under identical rolling conditions,furnace-cooled samples exhibit higher strength but reduced ductility compared with water-cooled counterparts.With increasing cumulative deformation,recrystallization-related microstructural features gradually develop,accompanied by pronounced changes in texture intensity,leading to different degrees of strength-ductility coordination.These results indicate that,within a hot-rolling processing window where recrystallization is significantly suppressed or only at its initial stage,the microstructural evolution characteristics and recrystallization tendency of the AXM 10305 Mg alloy can be effectively tailored by controlling the homogenization cooling route and rolling deformation parameters,thereby further influencing its mechanical properties.关键词
镁合金/双模组织/均匀化处理/轧制Key words
Magnesium alloy/Bimodal structure/Homogenization/Rolling分类
矿业与冶金引用本文复制引用
吴泽霖,徐超,唐光泽,张旭,张明全..Mg-Al-Ca-Mn镁合金在热轧过程中的再结晶行为及其组织调控工艺[J].宇航材料工艺,2026,56(4):101-108,8.基金项目
国家自然科学基金(52220105003)资助 （52220105003）
