添加锆对Al-Mg-Si合金时效组织和性能的影响
Effect of Addition Zr on Aging Microstructure and Property of Al-Mg-Si Alloy
摘 要
研究了加入质量分数0.15%锆对Al-Mg-Si合金时效(170℃×8h)后及在随后保温(250℃)过程中力学性能和组织的影响.结果表明:加入锆后,合金时效硬度值和力学性能均有一定程度的提高;随保温时间的延长,含锆合金硬度比未含锆合金硬度高,且降低趋势缓慢;主要原因是加入锆后形成了Al3Zr弥散相粒子,强化了Al-Mg-Si合金.
时效
组织性能
Al-Mg-Si alloy
aging
microstructure property
Abstract
The effect of addition 0.15% Zr on the mechanical properties and microstructure of Al-Mg-Si alloy after aging treatment(170℃×8h)and holding temperature process(250℃) was studied.The mechanical properties and aging hardness of Al-Mg-Si alloy were improved to some extent.In addition,the hardness curve of the alloy with Zr showed a slower decreasing than that of alloy without Zr with increasing the holding temperature.The main reason was that the Al3Zr dispersoids improved the properties of alloys.
中图分类号 TG146.2
所属栏目
基金项目 上海市科委纳米基金资助项目(0352nm099)
收稿日期 2005/1/25
修改稿日期 2005/10/25
网络出版日期
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备注金曼(1978-),女,辽宁兴城人,博士研究生.
引用该论文: JIN Man,SUN Bao-liang,SHAO Guang-jie. Effect of Addition Zr on Aging Microstructure and Property of Al-Mg-Si Alloy[J]. Materials for mechancial engineering, 2006, 30(4): 60～63
金曼,孙保良,邵光杰. 添加锆对Al-Mg-Si合金时效组织和性能的影响[J]. 机械工程材料, 2006, 30(4): 60～63
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参考文献
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【2】Murayama M,Hono K,Saga M,et al.Atom probe studied on the early stages of precipitation in Al-Mg-Si alloys[J].Mater Sci Eng,1998,250A:127-132.
【3】Hideo Yoshida,Yoshio Baba.The role of zirconium to improve strength and stress corrosion resistance of Al-Zn-Mg and Al-Zn-Mg-Cu alloys[J].Transactions of the Japan Institute of Metals,1982,23(10):620-630.
【4】Mukhopadhyaya K,Yang Q B.The influence of zirconium on the early stages of aging of a ternary Al-Zn-Mg alloy[J].Acta Metall Mater,1994,43(9):3083-3091.
【5】Vetrano John S,Bruemmer Steve M,Pawlowski L M,et al.Influence of the particle size on recrystallization and grain growth in Al-Mg-X alloys[J].Mater Sci Eng,1997,238A:101-107.
【6】Fuller Christian B,Krause Albert R,Dunand David C,et al.Microstructure and mechanical properties of 5754 aluminum alloy modified by Sc and Zr additions[J].Mater Sci Eng,2002,338A:8-16.
【7】JIN Man,SUN Bao-liang,ZHANG Pei-pei,et al.Effect of Zr addition on resistance to high temperature softening and resistivity of 6082 Al-Mg-Si alloys[A].Trans of Mater and Heat Treatment Proceeding of The 14th IFHTSE Congress 2004[C].Beijing:143-146.
【8】Robson J D,Prangnell P B.Dispersoid precipitation and process modelling in zirconium containing commercial aluminum alloys[J].Acta Mater,2001,49:599-613.
【9】王祝堂,田荣璋.铝合金及其加工手册[M].长沙:中南大学出版社,2000.36.
【10】王海波,古川稔,根本宾.A1-0.5%Zr合金的析出强化[J].西安冶金建筑学院学报,1991,23(1):47-54.
【11】Robson J D.Optimizing the homogenization of zirconium containing commercial aluminum alloys using a novel process model[J].Mater Sci Eng,2002,A338:219-229.
【12】徐恒钧.材料科学基础[M].北京:北京工业大学出版社,2001.285.
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