Abstract:
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The effect of cycle?temperature and material state on mechanical properties of the L2 pure aluminum are investigated in the paper.The results indicate that the tensile strength,yield strength and Vickers microhardness increase with cycle,after 10 cycles they reach 190.44MPa,152.27MPa and 49.3 respectively.The strength of material that is ARB processed at ambient temperature is higher than that at 250~(o),but elongation is lower.Strengthening abilities of half hardened and fully annealed L2 pure aluminum is the same,but strengthening extent of half hardened L2 pure aluminum is lower than that of fully annealed L2 pure aluminum.
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[1]Mishra R S,Valiev R Z,Mukherjee A K.The observation oftensile superplasticity in nanocrystalline materials[J].Nano-structured Materials,1997,9(1 8):473 476.
[2]张小明,张延杰,田锋,李中奎.铝的超细晶粒组织与强应变加工[J].中国有色金属学报,2002,12:193 198.
[3]魏伟,陈光.大塑性变形制备块体纳米材料.机械工程学报[J],2002,38(7):1 5.
[4]Horita Z.ECAP:A novel method for microstructural control[J].Materia Japan,1998,37(9):767 774.
[5]Furukawa M,Ma Y,Horita Z,et al.Microstructure charac-teristics and superplastic ductility in a Zn-22%Al alloy withsubmicrometer grain size[J].Materials Science and Engi-neering,1998,A241(1 2):122 128.
[6]Saito Y,Tsuji N,Utsunomiya H,Sakai T,Hong R G.Ul-tra-fine grained bulk aluminum produced by accumulative roll-bonding(ARB)process[J].Scripta materialia,1998,39(9):1221 1227.
[7]Saito Y,Utsunomiya H,Tsuji N,Sakai T.Novel utra1-highstraining process for bulk materials-development of the accu-mulative roll-bonding(ARB)process[J].Acta Materialia,1999,47(2):579 583.
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