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.1382. 北京科技大学学报 第30卷 低，在160MPa附近波动，延伸率先降后升，ARB7 1991,137(15):35 道次后延伸率为16%. [7]Valiev R Z.Islamgaliev R K.Bulk nanostructural materials from (3)对于路径A,材料变形方向始终保持不变， severe plastic deformation.Prog Mater Sci,2000,45:103 [8]Andrey B,Kaneaki T,Yuuji K,et al.Comparative study on mi- 在剪应变的作用下，晶粒沿轧制方向不断被拉长、剪 crostructure evolution upon unidirectional and multidirectional cold 切，生成细小的纤维状晶粒结构；而路径B,由于材 working in a Fe-15%Cr ferritie alloy.Mater Sei Eng A,2007, 料前后变形方向相反，轧制过程中晶粒受到的剪应 456(1/2):323 变方向相反，随着累积变形的增加，晶粒在反复剪应 [9]Richert M.Liu Q,Hansen N.Microstructural evolution over a 变作用下生成扁平状晶粒，材料内晶粒均匀性优于 large strain range in aluminum deformed by cyclic extrusion com pression.Mater Sci Eng A.1999.260:275 路径A, [10]Tsuji N.Saito Y,Lee Seong H.et al.ARB (accumulative roll- bonding)and other new techniques to produce bulk ultrafine 参考文献 grained materials.Ado Eng Mater,2003.5(5):338 [11]Saito Y.Tsuji N.Utsunomiya H,et al.Ultra fine grained bulk [1]Koch CC.Optimization of strength and ductility in nanocrys- aluminum produced by accumulative roll bonding (ARB)pro- talline and ultrafine grained metals.Scripta Mater,2003,49 cess.Seripta Mater.1998.39(9):1221 (7):657 [12]Min G H.Lee J M.Kang S B.et al.Evolution of microstructure [2]Mishra R S,Valiev R Z.Mukherjee A K.The observation of for multilayered Al/Ni composites by accumulative roll bonding tensile superplasticity in nanocrystalline materials.Nanostruct process.Mater Lett,2006,3.1 Maer,1997(9):473 [13]Chen M C.Hsieh HC.Wu W T.The evolution of microstrue- [3]Lee S H.Saito Y.Sakai T,et al.Microstructures and mechani- tures and mechanical properties during accumulative roll bonding cal properties of 6061 aluminum alloy processed by accumulative of Al/Mg composite.JAlloys Compd.006.416:169 roll-bonding.Mater Sci Eng A.2002.325:228 [14]Zhang B.Yuan S Q.Zhang X F,et al.Effects of annealing [4]Wu X L.Grain refinement by strain induced and elongation. treatment on microstructure and properties of ultra fine grains Trans Mater Heat Treat,2005,26(3):43 1060 commercially pure aluminum processed by accumulative roll (武晓雷.应变诱导晶粒细化与伸长率。材料热处理学报， bonding (ARB).Chin J Rare Met,2008.32(1):7 2005,26(3):43) (张兵，袁守谦，张西锋，等.热处理对ARB制备超细晶1060 [5]Segal V M.Reznikov V I,Drobyshevskii A E.et al.Plastic met- 工业纯铝组织和性能的影响，稀有金属，2008,32(1)：7 al working by simple shear.Metally,1981.1:115 [15]Lee S H,Saito Y.Tsuji N,et al.Role of shear strain in ultra- [6]Valiev RZ.Krasilnikov N A.Tsenev N K.Plastic deformation grain refinement by accumulative roll bonding (ARB)process. of alloys with submicron-grained structure.Mater Sci Eng A. Scripta Mater.2002.46:281低在160MPa 附近波动延伸率先降后升ARB 7 道次后延伸率为16％． （3） 对于路径 A材料变形方向始终保持不变 在剪应变的作用下晶粒沿轧制方向不断被拉长、剪 切生成细小的纤维状晶粒结构；而路径 B由于材 料前后变形方向相反轧制过程中晶粒受到的剪应 变方向相反随着累积变形的增加晶粒在反复剪应 变作用下生成扁平状晶粒材料内晶粒均匀性优于 路径 A． 参 考 文 献 ［1］ Koch C C．Optimization of strength and ductility in nanocrystalline and ultrafine grained metals． Scripta Mater200349 （7）：657 ［2］ Mishra R SValiev R ZMukherjee A K．The observation of tensile superplasticity in nanocrystalline materials． Nanostruct Mater1997（9）：473 ［3］ Lee S HSaito YSakai Tet al．Microstructures and mechanical properties of 6061aluminum alloy processed by accumulative rol-l bonding．Mater Sci Eng A2002325：228 ［4］ Wu X L．Grain refinement by strain-induced and elongation． T rans Mater Heat T reat200526（3）：43 （武晓雷．应变诱导晶粒细化与伸长率．材料热处理学报 200526（3）：43） ［5］ Segal V MReznikov V IDrobyshevskii A Eet al．Plastic metal working by simple shear．Metally19811：115 ［6］ Valiev R ZKrasilnikov N ATsenev N K．Plastic deformation of alloys with submicron-grained structure． Mater Sci Eng A 1991137（15）：35 ［7］ Valiev R ZIsIamgaliev R K．Bulk nanostructural materials from severe plastic deformation．Prog Mater Sci200045：103 ［8］ Andrey BKaneaki TYuuji Ket al．Comparative study on microstructure evolution upon unidirectional and multidirectional cold working in a Fe-15％Cr ferritic alloy．Mater Sci Eng A2007 456（1／2）：323 ［9］ Richert MLiu QHansen N．Microstructural evolution over a large strain range in aluminum deformed by cyclic extrusion compression．Mater Sci Eng A1999260：275 ［10］ Tsuji NSaito YLee Seong Het al．ARB （accumulative rol-l bonding） and other new techniques to produce bulk ultrafine grained materials．A dv Eng Mater20035（5）：338 ［11］ Saito YTsuji NUtsunomiya Het al．Ultra-fine grained bulk aluminum produced by accumulative roll bonding （ARB） process．Scripta Mater199839（9）：1221 ［12］ Min G HLee J MKang S Bet al．Evolution of microstructure for multilayered Al／Ni composites by accumulative roll bonding process．Mater Lett20063：1 ［13］ Chen M CHsieh H CWu W T．The evolution of microstructures and mechanical properties during accumulative roll bonding of Al／Mg composite．J Alloys Compd2006416：169 ［14］ Zhang BYuan S QZhang X Fet al．Effects of annealing treatment on microstructure and properties of ultra-fine grains 1060commercially pure aluminum processed by accumulative roll bonding （ARB）．Chin J Rare Met200832（1）：7 （张兵袁守谦张西锋等．热处理对 ARB 制备超细晶1060 工业纯铝组织和性能的影响．稀有金属200832（1）：7 ［15］ Lee S HSaito YTsuji Net al．Role of shear strain in ultragrain refinement by accumulative roll bonding （ARB） process． Scripta Mater200246：281 ·1382· 北 京 科 技 大 学 学 报 第30卷