东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (11): 53-56.DOI: -

• 论著 • 上一篇    下一篇

几种6000系汽车板铝合金的结晶相

刘宏;赵刚;刘春明;左良   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-11-15 发布日期:2013-06-24
  • 通讯作者: Liu, H.
  • 作者简介:-
  • 基金资助:
    教育部科学技术研究重大项目(0208);;

Phase constituents of some kinds of 6000-series aluminium alloys for automotive body sheets

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

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-11-15 Published:2013-06-24
  • Contact: Liu, H.
  • About author:-
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摘要： 通过扫描电镜/能谱、X射线衍射以及金相分析,针对几种6000系汽车板铝合金,研究了不同的合金成分对结晶相的影响.结果表明,合金铸造时形成的结晶相为Al1.9CuMg4.1Si3.3,Al8(FeMnCr)2Si,Al5(FeMnCr)Si,Al4(MnFeCr)3Si2,Al5(MnFeCr)12Si7以及Mg2Si.随Mg/Si,Mg/Cu质量比及Mn含量的增大,Mg2Si和Al(FeMnCr)Si/Al(MnFeCr)Si型结晶相数量增多.均匀化时,除发生Al5(FeMnCr)Si向Al8(FeMnCr)2Si相的转变外,其他结晶相的类型不变.在随后的固溶处理和时效过程中,结晶相不再发生变...

关键词: 6000系铝合金, 汽车板, 结晶相, 铸态, 均匀化

Abstract: By means of SEM/energy spectrum, XRD and metallographic analysis, the effects of different alloying compositions on the constituents of some 6000-series aluminium alloys for automotive body sheets were investigated. The results indicated that the phases formed in as-cast state include Al19CuMg4.1Si3.3, Al8(FeMnCr)2Si, Al5(FeMnCr)Si, Al4(MnFeCr)3Si2, Al5(MnFeCr)12Si7 and Mg2Si. And the quantities of such phases as Al(FeMnCr)Si, Al(MnFeCr)Si and Mg2Si increase with the mass ratios Mg/Si and Mg/Cu and Mn content. When homogenizing the Al alloys, the types of their phases remain unchanged except the Al5(FeMn)Si which is transformed into Al8(FeMn)2Si phase. Then, after rolling and final heat treatment, all the phases no longer change.

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