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采用室温拉伸性能测试、金相组织观察、XRD反极图测定和透射电子显微分析等方法研究了冷轧态和T3态2mm厚2524铝合金薄板不同取向条件下的显微组织和拉伸力学性能.以{110}<112>单组分织构模型为基础,研究了织构与平面各向异性的关系.结果表明,2524冷轧态和T3态铝合金薄板在与轧制方向成45°和60°方向上的强度较0°、30°和90°方向上的强度低,延伸率则是45°方向上最高;轧向力学性能优于横向力学性能;冷轧态合金薄板的平面各向异性高于T3态合金板材;2524冷轧态合金薄板的主要织构为{110}<112>,次要织构为{311}<112>;2524-T3态铝合金成品薄板的主要织构为{110}<001>;2524铝合金薄板的平面各向异性与合金的晶粒结构以及晶体学织构密切有关,其中晶体学织构是造成合金板材平面各向异性的主要原因.

参考文献

[1] Manabu Nakai;Takehiko Eto .New aspects of development of high strength aluminum alloys for aerospace applications[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):62-68.
[2] STARKE E A;Jr STALEY J T .Application of modern aluminum alloys to aircraft[J].Progress in Aerospace Sciences,1996,32(2-3):131-172.
[3] T. Warner .Recently-Developed Aluminum Solutions for Aerospace Applications[J].Materials Science Forum,2006(Pt.2):1271-1278.
[4] SRIVATSAN T S;KALOR D;MAGNUSEN P .The cyclic fatigue and final fracture behavior of aluminum alloy 2524[J].Materials & Design,2002,23(02):129-139.
[5] SRIVATSAN T S;KOLAR D;MAGNUSEN P .Influence of temperature on cyclic stress response,strain resistance,and fracture behavior of aluminum alloy 2524[J].Materials Science and Engineering A:Structural Materials:Properties Microstructure and Processing,2001,314(1-2):118.
[6] 杨胜,易丹青,杨守杰,钟利.温度对2E12铝合金疲劳性能与断裂机制的影响[J].航空材料学报,2007(06):1-5.
[7] 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.
[8] R. K. Singh;A. K. Singh;N. Eswara Prasad .Texture and mechanical property anisotropy in an Al-Mg-Si-Cu alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):114-122.
[9] 李树棠.晶体X射线衍射学基础[M].北京:冶金工业出版社,1996:198-202.
[10] DILLAMORE I L;KATOH H .The mechanisms of recrystallization in cubic metals with particular reference to their orientation-dependence[J].Metal Science Journal,1974,8:73-83.
[11] 毛卫民.金属材料的晶体学织构与各向异性[M].北京:科学出版社,2002:60-62.
[12] MAO W;HIRSCH J L;CKE K.The influence of iron content and annealing temperature on the recrystallization texture development[A].Santa Fe,The Metallurgical Society,1988:613-618.
[13] 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.
[14] PENG Yong-yi,YIN Zhi-Min,YANG Jin,DU Yu-xuan.In-plane anisotropy of 1545 aluminum alloy sheet[J].中国有色金属学会会刊(英文版),2005(01):87-92.
[15] 尹志民,何振波,杨进,聂波.铝-镁-钪合金板材晶粒结构、织构和力学性能平面各向异性[J].轻合金加工技术,2007(05):48-52.
[16] Cho KK;Lee CW;Kwun SI;Shin MC;Chung YH .Effects of grain shape and texture on the yield strength anisotropy of Al-Li alloy sheet[J].Scripta materialia,1999(6):651-657.
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