蒋福林,张辉,蒙春标,李落星

• 1:湖南大学材料科学与工程学院

摘要(Abstract)：

在Gleeble-1500热模拟机上对3104铝合金进行双道次等温热压缩实验,变形温度为400和500℃,变形速率为0.01和0.1 s-1,道次的变形量均为0.4,道次间保温时间为30、60和120 s。结果表明:3104铝合金在400℃以上的双道次热变形过程中,发生动态与静态软化。道次间的软化率随着变形温度和应变速率的增加,以及道次间停留时间的延长和道次间保持温度的升高而增大。运用双道次软化率建立了3104铝合金热变形再结晶模型,其再结晶激活能为155 kJ/mol。

关键词(KeyWords)： 3104铝合金;双道次热变形;软化率;再结晶

Abstract:

Keywords:

基金项目(Foundation): 国际科技合作计划(010S2010GR0739)

作者(Author): 蒋福林,张辉,蒙春标,李落星

DOI: 10.13289/j.issn.1009-6264.2011.03.012

参考文献(References)：

• [1]Andrade H L,Akben M G,Jonas J J.Effect of molybdenum,niobium and vanadium on static recovery and recrystallization and on solutestrengthening in microalloyed steels[J].Metallurgical and Materials Transaction A,1983,14:1967-1977.
• [2]Shigenori A,Takeyoshi D,Keisuke Y.Modeling of multistage rolling with difference equations[J].Light Metals,1989,39:94-99.
• [3]Chen B K,Thomson P F,Choi S K.Computer modelling of microstructure during hot flat rolling of aluminium[J].Materials Science and Technology,1992,V8:72-77.
• [4]Raghunathan N,Sheppard T.Microstructural development during annealing of hot rolled Al-Mg alloys[J].Materials Science and Technology,1989,5:542-547.
• [5]Zhang H,Peng D,Yang L,Meng L.Recrystallization model for hot-rolling of 5182 aluminum alloy[J].Trans Nonferrous Met Soc China,2001,11:382-386.
• [6]Axel Brand,Stefan Kalz,Reiner Kopp.Microstructural simulation in hot rolling of aluminium alloys[J].Computational Mater Sci,1996,7:242-246.
• [7]McQueen H J,Knustad O,Ryum N,Solberg J K.Microstructural evolution in Al deformed to strains of 60 at 400℃[J].Scripta Metallurgica,1985,19:73-78.
• [8]McQueen H J,Conrod K.Recovery and recrystalization in the hot-working of aluminum alloys[C]//Chia E H,McQueen H J.Microstructural controlin aluminum alloys:Deformation,recovery and recrystallization.Warrendal PA,TMS,1985:197-219.
• [9]Sellars C M,Irisarri A M,Puchi E S.Recrystalization characteristics of aluminium-1%magnesium under hot working conditions[C]//Chia E H,McQueen H J.Microstructural control in aluminum alloys:Deformation,recovery and recrystallization.Warrendal P A,TMS,1985:179-196.
• [10]McQueen H J,Blum W.Dynamic recovery:sufficient mechanism in the hot deformation of Al(<99.99)[J].Materials Science and Engineering A,2000,290:28-33.
• [11]McQueen H J,Imbert C A C.Dynamic recrystallization:plasticity enhancing structural development[J].Acta Materialia,2004,378:35-43.
• [12]Barraclough D R,Sellars C M.Static recrystallization and restoration after hot deformation of type 304 stainless steel[J].Metal Science,1987,13:256-267.
• [13]蒙春标,张辉,吴文祥,等.3104铝合金高温热压缩变形流变行为研究[J].热加工工艺,2008,36(6):12-14.MENG Chun-biao,ZHANG Hui,WU Wen-xiang,et al.Study on flow behavior of 3104 aluminum alloy during hot compression deformation at elevatedtemperature[J].Hot Working Technology,2008,36(6):12-14.
• [14]吴文祥,孙德勤,张辉,等.3003铝合金热变形流变应力特征[J].热加工工艺,2007,37(6):1-4.WU Wen-xiang,SUN De-qin,ZHANG Hui,et al.Flow stress feature of 3003 aluminium alloy under hot deformation[J].Hot Working Technology,2007,37(6):1-4.
• [15]Chen S P,Kuijpers N C W,Van der Zwaag S.Effect of microsegregation and dislocations on the nucleation kinetics of precipitation in aluminium alloyAA3003[J].Materials Science and Engineering A,2003,341:296-306.

文章评论(Comment)：