赖存明;杨昇;蔡彬;王屹波;

• 1:郑州大学物理工程学院

摘要(Abstract)：

通过对合金硬度和电阻率测试,研究了Al-Er,Al-Zr,Al-Er-Zr及其Al-Er-Zr-B合金时效硬化行为和导电性能;同时采用深度酸腐蚀的方法来观察合金微观组织形貌。结果表明,相对于纯Al,Er和Zr的加入均降低合金导电性能,且Zr对合金导电性影响更大; B的加入可以改善Er和Zr带来的不利影响,但使得合金失去时效硬化效果,而Zr的加入却可以减慢Al-Er-Zr合金高温时效时硬度下降的速度。在Al-ErZr-B合金中Zr和Er的硼化物是以六方片状和花瓣状形貌存在,而Al_3Zr则是以立方状形貌存在。

关键词(KeyWords)： 合金;时效硬化;导电性能;ZrB2;Al3Zr;稀土

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51371160)资助

作者(Author): 赖存明;杨昇;蔡彬;王屹波;

Email:

DOI:

参考文献(References)：

• [1]邢泽炳,聂祚仁,邹景霞,高旭东. Al-Er合金铸锭中铒的存在形式及作用研究[J].中国稀土学报,2007,25(2):234.Xing Z B,Nie Z R,Zou J X,Gao X D. Existing form and effect of erbium in Al-Er alloy[J]. Journal of the Chinese Society of Rare Earths,2007,25(2):234.
• [2]黄学锋,高原,刘贵仲,徐晋勇.稀土Er改性6063铝合金导电性能研究[J].热加工工艺,2010,39(24):19.Huang X F,Gao Y,Liu G Z,Xu J Y. Study on conductivity of 6063 aluminum alloy modified by rare earth element Er[J]. Hot Working Technology,2010,39(24):19.
• [3]钱炜,张振亚,王晓璐,王研,赵玉涛.铒、钇对6082铝合金性能及微观结构的影响[J].中国稀土学报,2016,34(5):592.Qian W,Zhang Z Y,Wang X L,Wang Y,Zhao Y T.Effects of Er and Y on properties and microstructure of6082 aluminum alloy[J]. Journal of the Chinese Society of Rare Earths,2016,34(5):592.
• [4] Zhang Y,Gao K Y,Wen S P,Huang H,Nie Z R,Zhou D J. The study on the coarsening process and precipitation strengthening of Al3Er precipitate in Al-Er binary alloy[J]. J. Alloys Compd., 2014, 610(30):27.
• [5] Robson J D,Prangnell P B. Modelling Al3Zr dispersoid precipitation in multicomponent aluminium alloys[J]. Mater. Sci. Eng.,A,2003,352(1):240.
• [6] Forbord B,Hallem H,Ryset J,Marthinsen K. Thermal stability of Al3(Scx,Zr1-x)dispersoids in extruded aluminium alloys[J]. Mater. Sci. Eng.,A,2008,475(1):241.
• [7] Wen S P,Gao K Y,Li Y,Huang H,Nie Z R. Synergetic effect of Er and Zr on the precipitation hardening of Al-Er-Zr alloy[J]. Scripta Mater.,2011,65(7):592.
• [8] Wen S P,Gao K Y,Huang H,Nie Z R. Precipitation evolution in Al-Er-Zr alloys during aging at elevated temperature[J]. J. Alloys Compd.,2013,574(1):92.
• [9] Li H Y,Gao Z H,Yin H,Jing H F,Su X J,Bin J.Effects of Er and Zr additions on precipitation and recrystallization of pure aluminum[J]. Scripta Mater.,2013,68(1):59.
• [10]张红耀,陈敬超,杨钢,杜焰,李玉华.硼对工业纯铝显微组织的影响[J].有色金属(冶炼部分),2006,(2):41.Zhang H Y,Chen J C,Yang G,Du Y,Li Y H. Effects of boron on the microstructure of industrial pure aluminum[J]. Nonferrous Metals(Parting of Smelting),2006,(2):41.
• [11] Wang G Q,Liu S H,Li C M,Gao Q. Reaction of boron to transition metal impurities and its effect on conductivity of aluminum[J]. T. Nonferr. Matal. Soc.,2002,12(6):1112.
• [12] Chao R Z,Guan X H,Guan R G,Tie D,Lian C,Wang X,Zhang J. Effect of Zr and Sc on mechanical properties and electrical conductivities of Al wires[J].T. Nonferr. Matal. Soc.,2014,24(10):3164.
• [13] Belov N A,Alabin A N,Matveeva I A,Eskin D G.Effect of Zr additions and annealing temperature on electrical conductivity and hardness of hot rolled Al sheets[J]. T. Nonferr. Matal. Soc.,2015,25(9):2817.
• [14]蒙多尔福L F,王祝堂.铝合金的组织与性能[M].北京:冶金工业出版社,1988.Mondolfo L F,Wang Z T. The Microstructrue and Property of Aluminum Alloy[M]. Beijing:Metallurgical Industry Press,1988.
• [15]单鹏. B对电解加Zr耐热电工铝合金组织及性能影响的研究[D].郑州:郑州大学,2009.Shan B. Investigation on the Effect of B on the Microstructrue and Property of Al Heat-Resistant Conductive Alloys with Zr Addition by Electrolysis[D]. Zhengzhou:Zhengzhou University,2009.
• [16] Yang R,Zhang Z,Zhao Y,Chen G,Liu M P,Jiao L,Chen L. Microstructure-property analysis of Zr B2/6061Al hierarchical nanocomposites fabricated by direct melt reaction[J]. Mater. Charact,2016,112:51.
• [17] Brabazon D,Browne D J,Carr A J. Mechanical stir casting of aluminium alloys from the mushy state:process,microstructure and mechanical properties[J].Mater. Sci. Eng.,A,2002,326(2):370.