东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (1): 73-76.DOI: -

• 论著 • 上一篇    下一篇

Al-1.3Si-0.7Mg-0.7Cu-0.3Mn铝合金薄板在固溶处理过程中的组织转变

田妮;赵刚;刘春明;左良;   

  1. 东北大学材料各向异性与织构教育部重点实验室;东北大学材料各向异性与织构教育部重点实验室;东北大学材料各向异性与织构教育部重点实验室;东北大学材料各向异性与织构教育部重点实验室 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-01-15 发布日期:2013-06-22
  • 通讯作者: Tian, N.
  • 作者简介:-
  • 基金资助:
    教育部科学技术研究重大项目(302008)

Microstructural evolution of Al-1.3Si-0.7Mg-0.7Cu-0.3Mn aluminum alloy sheets during solution treatment

Tian, Ni (1); Zhao, Gang (1); Liu, Chun-Ming (1); Zuo, Liang (1)   

  1. (1) Key Laboratory for Anisotropy and Texture of Materials, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-01-15 Published:2013-06-22
  • Contact: Tian, N.
  • About author:-
  • Supported by:
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摘要： 通过XRD,OM和TEM组织观察、织构测定等方法研究了冷轧Al-1.3Si-0.7Mg-0.7Cu-0.3Mn铝合金汽车车身板在固溶处理过程中其合金相、晶粒、织构组态的变化.结果表明:Al-1.3Si-0.7Mg-0.7Cu-0.3Mn合金冷轧薄板中存在Al9Fe0.84Mn2.16Si,Al95Fe4Cr和Al6Mn不可溶合金相及Al1.9CuMg4.1Si3.3和Mg2Si可溶合金相;尺寸小于1μm的可溶合金相在540℃盐浴固溶中保温12 min以上即可全部溶入基体;冷轧薄板在540℃固溶保温2 min即可完成再结晶,形成{001}〈310〉和{110}〈113〉再结晶织构,其中以{001...

关键词: 6×××系铝合金, 车身板, 固溶处理, 再结晶, 织构

Abstract: The evolution of intermetallic phases, grains and textures of cold rolled Al-1.3Si-0.7Mg-0.7Cu-0.3Mn aluminum alloy sheets during solution treatment at 540°C was investigated by XRD, OM and TEM observation and texture measurement. The results showed that there are many insoluble intermetallic phases such as Al9Fe0.84Mn2.16Si, Al95Fe4Cr and Al6Mn in the as-cold rolled alloy sheets, as well as some soluble ones including Al1.9CuMg4.1Si3.3 and Mg2Si. The soluble intermetallic phases smaller than 1 μm can be dissolved completely into matrix when the cold rolled sheets are bathed in molten salt at 540°C for over 12 min, and the sheets can be recrystallized within 2 min through solution treatment at 540°C to form the recrystalline textures {001}<310> and {110}<113>, where the former is dominant and both are of low intensity. It was revealed that the size and shape of recrystallized grains and the component of recrystalline textures change un-obviously when lengthening the time for solution treatment at 540°C to 60 min.

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