以多阶段和非等温为特征的新型铝合金热处理方法综述  

The novel heat treatments of aluminium alloy characterized by multistage and non-isothermal routes:A review

作　　者：冯迪 李鑫迪 张新明 刘胜胆 王经涛 刘瑛 FENG Di;LI Xin-di;ZHANG Xin-ming;LIU Sheng-dan;WANG Jing-tao;LIU Ying(Department of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;School of Materials Science and Engineering,Central South University,Changsha 410083,China;Department of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]Department of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [2]School of Materials Science and Engineering,Central South University,Changsha 410083,China [3]Department of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Journal of Central South University》2023年第9期2833-2866,共34页中南大学学报（英文版）

基　　金：Project(52001140) supported by the National Natural Science Foundation of China;Projects(GY2021003, GY2021020) supported by the Key Research and Development Program of Zhenjiang City,China;Project(SJCX23_2186) supported by Postgraduate Research&Practice Innovation Program of Jiangsu Province,China;Project(202310289013H) supported by Undergaduate Innovation and Entrepreneurship Training Program of Jiangsu Province,China。

摘　　要：预备热处理和最终热处理在铝合金产品的生产制备中都发挥着不可替代的作用。合金成分的均匀程度、弥散相的尺寸及其与基体的共格关系、再结晶晶粒的大小和长径比、溶质元素的过饱和度和时效沉淀相的特征等都直接决定了材料的力学性能、耐腐蚀性能和可加工性。在工程应用中,由于产品尺寸的影响,涉及加热和/或冷却过程的非等温现象是不可避免的。因此,具有工程适用性的新型热处理技术是固态相变理论得以实现的必要延伸。本文以AlZnMg(Cu)、AlMgSi和AlCu(Li)等典型变形铝合金为研究对象,综述了其均匀化、固溶和时效技术的研究现状,重点归纳和总结了新型热处理技术的多阶段热处理和非等温热处理。Both preliminary heat treatment and final heat treatment play an irreplaceable role in the production of aluminum alloy products.The homogenization degree of compositions,the size of the dispersoid and its coherent relationship with the matrix,the size and aspect ratio of recrystallized grains,the supersaturation of solutes,and the characteristics of precipitates directly determine the mechanical properties,corrosion resistance,and the workability of materials.In engineering applications,non-isothermal phenomena involving heating and/or cooling processes are inevitable due to the impact of product scales.Therefore,novel heat treatment technology with higher engineering applicability is a necessary extension of the solid-state phase transformation theory.Based on the typical wrought aluminum alloys such as AlZnMg(Cu),AlMgSi,and AlCu(Li),the current researches on engineeringable homogenization,solid solution,and aging technologies were summarized.The novel technologies focused on multistage heat treatments and non-isothermal heat treatments.

关 键 词：变形铝合金 多阶段热处理 非等温热处理 均匀化 固溶 时效 

分 类 号：TG166.3[金属学及工艺—热处理]