中国有色金属学报, 2014, (5): 1141-1150.
预时效温度及回归加热速率对7055铝合金组织及性能的影响
冯迪
1,
,
张新明
2,
,
邓运来
3,
,
刘胜胆
4,
,
吴泽政
5,
,
郭奕文
6,
1.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083;
2.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083;
3.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083;
4.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083;
5.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083;
6.中南大学 材料科学与工程学院，长沙 410083; 中南大学 有色金属材料与工程教育部重点实验室，长沙 410083
利用硬度、电导率与拉伸性能测试，结合差示扫描量热法(DSC)和透射电镜(TEM)研究预时效温度和回归加热速率对7055铝合金力学性能和电导率的影响，并讨论各RRA制度下微观组织的变化。结果表明：由于7055铝合金中厚板在回归加热过程中存在慢速升温过程，近峰时效作为预时效制度更适合7055铝合金中厚板的回归再时效处理。经过(105℃，24 h)?3?℃/?m?in→(190℃，50 min)+(120℃，24 h)的三级时效处理，7055铝合金中厚板强度和电导率优于T6和T73状态的综合性能。
引用：
冯迪,
张新明,
邓运来,
刘胜胆,
吴泽政,
郭奕文
预时效温度及回归加热速率对7055铝合金组织及性能的影响.
中国有色金属学报,
2014, (5): 1141-1150.
doi:
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