肖政兵,申振宇,黄元春,黄娟,邹倜

• 1:中南大学轻合金研究院
• 2:中南大学机电工程学院
• 3:中南大学材料科学与工程学院

摘要(Abstract)：

采用光学显微镜、扫描电镜、显微硬度仪及电子万能拉伸试验机等研究了退火温度和退火保温时间对5083铝合金热轧厚板力学性能和显微组织的影响。结果表明:随着退火温度升高与保温时间延长,5083铝合金热轧板的强度逐渐下降而伸长率增大;退火温度比保温时间对力学性能的影响更为显著;热轧过程中表层和心部变形不均匀,导致在后续退火过程中板材的显微组织演化规律大不相同。在不同退火制度下,5083铝合金热轧板材的拉伸断口均为微孔聚集性韧性断裂。综合考虑,在450℃退火保温2 h后5083铝合金热轧板材的组织和性能较好。

关键词(KeyWords)： 5083铝合金;热轧;退火制度;微观组织;断口形貌

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金(52001332)

作者(Author): 肖政兵,申振宇,黄元春,黄娟,邹倜

DOI: 10.13289/j.issn.1009-6264.2020-0493

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