预回复退火对7085铝合金挤压材组织和性能的影响Effect of pre-recovery-annealing treatment on microstructure and properties of extruded 7085 aluminum alloy
许晓静,张允康,邓平安,吴瑶,张振强,卢予东
摘要(Abstract):
通过光学显微镜(OM)观察、拉伸试验、XRD及EBSD检测分析,研究了预回复退火对7085铝合金微观组织性能的影响,并对其强化机理进行了初步研究。结果表明,预回复退火处理可有效细化7085型铝合金挤压材晶粒尺寸,抑制再结晶,提高拉伸力学性能;强度提高归因于低角度晶界及位错强化。
关键词(KeyWords): 7085铝合金;预回复退火处理;微观组织;强化机理
基金项目(Foundation): 江苏省工业科技支撑计划项目(BE2008118);; 江苏大学优秀青年学术骨干培育专项基金(1211110001);; 江苏省高校研究生科研创新计划项目(CXLX110563)
作者(Author): 许晓静,张允康,邓平安,吴瑶,张振强,卢予东
DOI: 10.13289/j.issn.1009-6264.2014.08.007
参考文献(References):
- [1]刘兵,彭超群,王日初,等.大飞机用铝合金的研究现状及展望[J].中国有色金属学报,2010,20(9):1705-1715.LIU Bing,PENG Chao-qun,WANG Ri-chu,et al.Recent development and prospects for giant plane aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2010,20(9):1705-1715.
- [2]Warner T.Recently-developed aluminum solutions for aerospace applications[J].Materials Science Forum,2006,519/521(2):1271-1278.
- [3]Shuey R,Barlat F,Karabin M,et al.Experimental and analytical investigations on plane strain toughness for 7085 aluminum alloy[J].Metallurgical and Materials Transactions A,2009,40(2):365-376.
- [4]曹春晓.一代材料技术,一代大型飞机[J].航空学报,2008,29(3):701-706.CAO Chun-xiao.One generation of material technology,one generation of large aircraft[J].Acta Aeronautica et Astronautica Sinica,2008,29(3):701-706.
- [5]陈小明,宋仁国,李红霞,等.7075铝合金双峰时效研究[J].材料热处理学报,2010,31(2):80-84.CHEN Xiao-ming,SONG Ren-guo,LI Hong-xia,et al.Study on double-peak aging in 7075 aluminum alloy[J].Transactions of Materials and Heat Treatment,2010,31(2):80-84.
- [6]戴晓元,夏长清,刘昌斌,等.固溶处理及时效对7xxx铝合金组织与性能的影响[J].材料热处理学报,2007,28(4):59-63.DAI Xiao-yuan,XIA Chang-qing,LIU Chang-bin,et al.Effects of solution and aging process on microstructure and mechanical properties of 7xxx aluminum alloy[J].Transactions of Materials and Heat Treatment,2007,28(4):59-63.
- [7]许晓静,张雪峰,曹进琪,等.常规固溶态2024铝合金ECAP加工后的拉伸性能[J].稀有金属材料与工程,2006,35(S2):395-397.XU Xiao-jing,ZHANG Xue-feng,CAO Jin-qi,et al.Tensile properties of the 2024Al alloy processed by conventional solid-solution and subsequent equal-channel angular pressing(ECAP)[J].Rare Metal Materials and Engineering,2006,35(S2):395-397.
- [8]Marcello C.Microstructure strengthening mechanisms in different equal channel angular pressed aluminum alloys[J].Materials Science&Engineer A,2013,560:413-432.
- [9]Luo P,McDonald D T,Xu W,et al.A modified Hall-Petch relationship in ultrafine-grained titanium recycled from chips by equal channel angular pressing[J].Scripta Materialia,2012,66(10):785-788.
- [10]张德芬,左良.预回复退火对3104铝合金再结晶织构和显微组织的影响[J].石油化工高等学校学报,2004(3):62-65.ZHANG De-fen,ZUO Liang.The effect of pre-recovery on recrystallization textures and microstructures[J].Journal of Petrochemical Universities,2004,17(3):62-65.
- [11]熊创贤,邓运来,万里,等.7050铝合金板在固溶过程中微结构与织构的演变[J].中国有色金属学报,2010(3):427-434.XIONG Chuang-xian,DENG Yun-lai,WAN Li,et al.Evolutions of microstructures and textures of 7050 Al alloy plate during solution heat treatment[J].The Chinese Journal of Nonferrous Metals,2010,20(3):427-434.
- [12]Zhang Z,Chen K H,Fang H C,et al.Effect of Yb addition on strength and fracture toughness of Al-Zn-Mg-Cu-Zr aluminum alloy[J].Transactions of Nonferrous Metals Society of China,2008,18(5):1037-1042.
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