陈忠伟,樊秦英

• 1:西北工业大学凝固技术国家重点实验室

摘要(Abstract)：

利用拉伸试验机和EBSD技术分析研究了2A97铝锂合金力学性能的各向异性与不同热处理状态的微观织构变化。结果表明,合金的抗拉强度、屈服强度、伸长率随取样方向呈现一定的各向异性。合金微观织构的变化引起了其各向异性。在TDND截面上,时效0 h和16 h的立方织构{001}<100>含量比时效0.5 h多,降低合金的各向异性。随着时效时间的增加,合金各个截面上的再结晶织构含量都有所增加。时效16 h时,试样再结晶织构与变形织构的百分含量相差最小,且在各个截面上分布比较均匀,其强度各向异性指标最小,改善了各向异性。

关键词(KeyWords)： 2A97铝锂合金;微观织构;EBSD;各向异性

Abstract:

Keywords:

基金项目(Foundation): 航空科学基金(2012ZF53080)

作者(Author): 陈忠伟,樊秦英

DOI: 10.13289/j.issn.1009-6264.2015.06.012

参考文献(References)：

• [1]李劲风,郑子樵,陈永来,等.铝锂合金及其在航天工业上的应用[J].宇航材料工艺,2012(1):13-19.LI Jin-feng,ZHENG Zi-qiao,CHEN Yong-lai,et al,Al-Li alloys and their application in aerospace industry[J].Aerospace Materials&Techonology,2012(1):13-19.
• [2]Williams J C,Starke Jr.E A.Progress in structural materials for aerospace systems[J].Acta Materialia,2003,51:5775-5799.
• [3]周昌荣,潘长荣,朱朝明,等.新型铝锂合金的研究和发展[J].材料导报,2004,18(5):30-32.ZHOU Chang-rong,PAN Chang-rong,ZHU Zhao-ming,et al.Research and development of new aluminum-lithium alloys[J].Materials Review,2004,18(5):30-32.
• [4]尹登峰,余志明,陶颖,等.Al-Li合金的合金化及组织研究进展[J].材料导报,2005,19(2):84-86.YIN Deng-feng,YU Zhi-ming,TAO Ying,et al.Research progress in effects of elements on microstructure of aluminum-lithium alloys[J].Materials Review,2005,19(2):84-86.
• [5]KIM K J,WON S T,PARK J H.Texture analysis of 5182 aluminum alloy sheets for improved drawability by rolling process[J].Material Science and Engineering Technology,2012,43(5):373-378.
• [6]陈艳霞,张建国,王泓,等.2124铝合金各向异性的EBSD研究[J].金属热处理,2011,36(5):79-82.CHEN Yan-xia,ZHANG Jian-guo,WANG Hong,et al.EBSD investigation on the anisotropy of 2124 aluminum alloy[J].Heat Treatment of Metals,2011,36(5):79-82.
• [7]Fan W,Kashyap B P,Chataturvedi M C.Anisotropy in flow and microstructural evolution during superplastic deformation of a layered-microstructured AA8090 Al-Li alloy[J].Materials Science and Engineering A,2003,349(1/2):166-182.
• [8]Kashyap B P,Chaturyedi M C.Stain anisotropy in AA8090 Al-Li alloy during high temperature deformation[J].Materials Science and Engineering A,2000,281(1/2):88-95.
• [9]Jata K V,Hopkins A K,Rioja R J.The anisotropy and texture of Al-Li alloys[J].Materials Science Forum,1996,217/222:647-652.
• [10]Singh R K,Singh A K,Eswara Prasad N.Texture and mechanical property anisotropy in an Al-Mg-Si-Cu alloy[J].Materials Science and Engineering A,2000,277:114-122.
• [11]郭加林,尹志民,商宝川,等.2524铝合金薄板平面各向异性研究[J].航空材料学报,2009,29(1):1-6.GUO Jia-lin,YIN Zhi-min,SHANG Bao-chuan,et al.Study on in-plane anisotropy of 2524 aluminum alloy sheet[J].Joural of Aearonautinal Materials,2009,29(1):1-6.
• [12]陈芳芳.再结晶织构对铝合金板材力学性能的影响[D].天津:河北工业大学,2007.CHEN Fang-fang.Influence of recrystallization texture on mechanical properties of aluminum sheets[D].Tianjin:Hebei University of Technology,2007.
• [13]杨中玉,张津,郭学博,等.铝合金的织构及测试分析研究进展[J].精密成型工程,2013,5(6):1-6.YANG Zhong-yu,ZHANG Jin,GUO Xue-bo,et al.Research progress on aluminum alloy texture and test analysis[J].Journal of Netshape Forming Engineering,2013,5(6):1-6.
• [14]Contrepois Q,Maurice C,Driver J H.Hot rolling textures of Al-Cu-Li and Al-Zn-Mg-Cu aeronautical alloys:Experiments and simulations to high strains[J].Materials Science and Engineering A,2010,527(27/28):7305-7312.
• [15]袁志山,陆政,谢优华,等.新型高强2A97铝锂合金组织和性能研究[J].材料热处理学报,2008,29(5):44-48.YUAN Zhi-shan,LU Zheng,XIE You-hua,et al.Study on microstructure and properties of a novel high strength aluminum lithium alloy 2A97[J].Transactions of Materials and Heat Treatment,2008,29(5):44-48.

文章评论(Comment)：