采用力学性能测试和金相实验,研究了7055合金挤压带板纵横向力学性能随固溶处理时间的变化,以及纵向取样位置对带板力学性能的影响.结果表明,7055合金挤压带板在470℃保温超过20min,其固溶处理基本充分,继续延长固溶处理保温时间,不能提高合金的强度,但合金延伸率略有升高.挤压带板的纵向强度明显高于横向的强度,但其延伸率明显低于横向的延伸率.挤压带板在宽度方向距中心不同距离样品的纵向强度差别较大,从心部至边部强度明显提高,而延伸率变化不大,在研究挤压带板的纵向性能时应考虑由此而带来的影响.
参考文献
| [1] | Srivatsan TS.;Verraraghavan D.;Vasudevan VK.;Sriram S. .MICROSTRUCTURE, TENSILE DEFORMATION AND FRACTURE BEHAVIOUR OF ALUMINIUM ALLOY 7055[J].Journal of Materials Science,1997(11):2883-2894. |
| [2] | Lukasak DA;Hart RM .Aluminumalloydevelopmenteffortsforcompressiondominatedstructureofaircraft[J].Light Metal Age,1991,49(9-10):11-15. |
| [3] | Liu et al.United States Patent[P].5, 108, 520, Apr 28,1992. |
| [4] | R. Kaibyshev;T. Sakai;F. Musin .Superplastic behavior of a 7055 aluminum alloy[J].Scripta materialia,2001(12):1373-1380. |
| [5] | Kanghua Chen;Hongwei Liu;Zhuo Zhang .The improvement of constituent dissolution and mechanical properties of 7055 aluminum alloy by stepped heat treatments[J].Journal of Materials Processing Technology,2003(1):190-196. |
| [6] | 郑子樵,李红英,莫志民.一种7055型铝合金的RRA处理[J].中国有色金属学报,2001(05):771-776. |
| [7] | SrivatsanTS;Anand S;Veeraghauan D et al.ThetensileresponseandfracturebehaviourofanAl-Zn-Mg-Cualloy:Influenceoftemperature[J].Journal of Materials Engineering and Performance,1997,6(03):349-358. |
| [8] | ChamplinaJulie;Zakrajseka J;Srivatsana TS et al.Influenceofnotchseverityontheimpactfracturebehaviorofaluminumalloy7055[J].Materials & Design,1999,20:331-341. |
| [9] | Srivatsan T. S. .Temperature and the Ductility, Deformation, and Fracture of Al 7055[J].JOM,1999(1):0-0. |
| [10] | SrivatsanTS;Anand S;Sriram S et al.Thehigh-cyclefatigueandfracturebehaviorofaluminumalloy7055[J].Materials Science and Engineering,2000,281:292-304. |
| [11] | SrivatsanTS .Aninvestigationofthecyclicfatigueandfracturebehaviorofaluminumalloy7055[J].Materials & Design,2002,23:141-151. |
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