王振,李亨,唐锴,石文超,吴玉程

• 1:合肥工业大学航空结构件成形制造与装备安徽省重点实验室
• 2:合肥工业大学工业与装备技术研究院
• 3:合肥工业大学有色金属与加工技术国家地方联合工程研究中心

摘要(Abstract)：

对固溶处理的Al-Mg-Si-Sc-Zr合金分别进行80%变形室温轧制+250℃时效处理、80%变形液氮控温轧制+250℃时效处理,研究3种状态下合金的DSC曲线和微观组织。结果表明:轧制状态下合金DSC曲线的峰与固溶状态下相比向左发生了偏移,这说明变形可以缩短Al-Mg-Si-Sc-Zr合金时效峰值时间。对轧制前后的显微组织进行分析发现,轧制合金组织内形成了少量的孔洞,室温轧制状态的合金的孔洞尺寸比液氮控温轧制状态的合金大17%左右;时效处理后,孔洞的数量增加且尺寸增大。

关键词(KeyWords)： Al-Mg-Si-Sc-Zr合金;轧制变形;时效处理;显微组织

Abstract:

Keywords:

基金项目(Foundation): 囯家重点研发计划(2017YFB0701804);; 国家自然科学基金(51605128)

作者(Author): 王振,李亨,唐锴,石文超,吴玉程

DOI: 10.13289/j.issn.1009-6264.2019-0305

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