许晓静,朱金鑫,郭云飞.固溶-冷变形-时效工艺下超高强铝合金Al-13.01Zn-3.16Mg-2.8Cu-0.204Zr-0.0757Sr组织及性能研究[J].稀有金属材料与工程,2017,46(10):2981~2986.[xuxiaojing,zhujinxin,guoyunfei.The research of solution-cold deformation-aging to ultra-high strength aluminum alloy Al - 13.01Zn - 3.16Mg - 2.8Cu - 0.204Zr - 0.0757Sr affected tissue and properties[J].Rare Metal Materials and Engineering,2017,46(10):2981~2986.]
固溶-冷变形-时效工艺下超高强铝合金Al-13.01Zn-3.16Mg-2.8Cu-0.204Zr-0.0757Sr组织及性能研究
投稿时间:2015-06-25  修订日期:2016-08-31
中文关键词:  Al-Zn-Mg-Cu超高强铝合金  冷压缩  组织性能
基金项目:江苏省科技支撑计划项目,江苏省高校科研成果产业化推进项目
中文摘要:
      采用X射线衍射分析(XRD)、电子背散射衍射分析(EBSD)、电导率测试、硬度测试、拉伸试验、晶间腐蚀试验和剥落腐蚀试验,研究了冷变形对超高强铝合金Al - 13.01Zn - 3.16Mg - 2.8Cu - 0.204Zr - 0.0757Sr组织及性能的影响。结果表明,相比传统固溶—时效工艺,合金在固溶—冷压缩—时效工艺下平均晶粒尺寸减小,硬度、电导率、小角度晶界比例、抗拉和屈服强度增大和抗腐蚀性能变好。其中固溶—冷压缩—时效(100 ℃×24 h)工艺下合金的硬度、电导率、屈服、抗拉强度达到了243.0 HV、25.085 %IACS、683.2 MPa和734.7 MPa,延伸率为6.1%,且晶间腐蚀深度为23.81 um,晶间腐蚀等级为二级。
The research of solution-cold deformation-aging to ultra-high strength aluminum alloy Al - 13.01Zn - 3.16Mg - 2.8Cu - 0.204Zr - 0.0757Sr affected tissue and properties
英文关键词:Al-Zn-Mg-Cu ultra-high strength aluminum alloy, compression, microstructure - property
英文摘要:
      The effects of cold deformation treatment on solution microstructures and properties of a new designed Al-13.01Zn-3.16Mg-2.8Cu-0.204Zr-0.0757Sr alloy extrusions were investigated by tensile, hardness tests, XRD and EBSD analysis, inter-granular and exfoliation corrosion resistance experiments. The results show that compared to the traditional solution - aging, The average grain size decreases, the hardness, conductivity, low-angle grain boundaries ratio, tensile and yield strength increases, and corrosion resistance becomes better of the alloy under solution-compression-aging. Wherein the hardness, conductivity, yield, tensile strength reached 243.0 HV, 25.085% IACS, 734.7 MPa and 683.2 MPa, elongation of 6.1% and intergranular corrosion depth of 23.81 um, intergranular corrosion rate 2 of the alloy under the solution- compression - aging (100 ℃×24 h).
作者单位E-mail
许晓静 江苏大学 xjxu67@ujs.edu.cn 
朱金鑫 江苏大学机械工程学院 1522615801@qq.com 
郭云飞 江苏大学 gyf18362881059@163.com 
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