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Constituents evolution of LFEC 7050 aluminum alloy during processing
引用本文:左玉波 王爽 赵志浩 崔建忠 张海涛 涂赣峰. Constituents evolution of LFEC 7050 aluminum alloy during processing[J]. 中国有色金属学会会刊, 2007, 17(A01): 249-253
作者姓名:左玉波 王爽 赵志浩 崔建忠 张海涛 涂赣峰
作者单位:[1]Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China [2]College of Software, Northeastern University, Shenyang 110004, China [3]School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
基金项目:Projects (2005CB623707) supported by the National Key Basic Research Program of China
摘    要:The d 120 mm ingots of 7050 aluminum alloy were made by low frequency electromagnetic casting (LFEC) and conventional DC casting process, respectively. After homogenization treatment the ingots were extruded to rods and the solution and aging treatment were carried out for the rods. Constituents evolution during processing and effects of LFEC on constituents and remnant constituents were studied. The results show that 7050 aluminum alloy mainly contains Al-Zn-Mg-Cu type and Al-Cu-Fe type constituents. Al-Zn-Mg-Cu type constituents dissolve during homogenization, while Al-Cu-Fe type constituents could not dissolve. After homogenization treatment, the main remnant constituent is A17Cu2Fe which crushes and orients along the extrusion direction after extrusion. Compared with DC process, by the process of LFEC, the constituents or remnant constituents are smaller in size and less in content. The LFEC process shows significant improvement in elongation by LFEC in both as-cast state and final state.

关 键 词:铝合金 电磁性能 功能材料 电荷
收稿时间:2007-07-15
修稿时间:2007-09-10

Constituents evolution of LFEC 7050 aluminum alloy during processing
ZU Yu-bo, WANG Shuang, ZHA Zhi-hao, CUI Jian-zhong, ZHANG Hai-tao, TU Gan-feng. Constituents evolution of LFEC 7050 aluminum alloy during processing[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(A01): 249-253
Authors:ZU Yu-bo   WANG Shuang   ZHA Zhi-hao   CUI Jian-zhong   ZHANG Hai-tao   TU Gan-feng
Affiliation:ZU0 Yu-bo, WANG Shuang, ZHA0 Zhi-hao, CUI Jian-zhong, ZHANG Hai-tao, TU Gan-feng
Abstract:
Keywords:7050 aluminum alloy   low frequency electromagnetic casting   microstructures   constituents
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