李慧中,高峰,李鹏伟,梁霄鹏

• 1:中南大学材料科学与工程学院
• 2:湖南理工学院机械工程学院

摘要(Abstract)：

采用光学显微镜、透射电镜(TEM)、扫描电镜(SEM)、X射线衍射、硬度测试、拉伸试验等对冷轧5083铝合金的退火行为、织构演变及塑性各向异性参数进行了分析计算。结果表明:冷轧变形量为70%的5083铝合金起始再结晶温度为240℃,终止再结晶温度为260℃。完全再结晶退火后,再结晶织构以Cube、R-Cube和Goss织构为主。在260～320℃范围内,随退火温度的升高,β纤维织构向Cube织构和Goss织构转变程度增加;Cube织构向R-Cube织构的转变先增加后减少。300℃退火后,R-Cube织构含量最高,Cube织构次之,Goss织构最少;合金的厚向各向异性指数(■)最高为0.909、平面各向异性指数(Δr)的绝对值较小为0.242,表明该状态下合金具有较好的冲压成形性能和较低的深冲制耳率。

关键词(KeyWords)： 5083铝合金;退火温度;织构;塑性各向异性

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2018YFB2001800)

作者(Author): 李慧中,高峰,李鹏伟,梁霄鹏

DOI: 10.13289/j.issn.1009-6264.2019-0542

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