Improvement of yttrium on the hot tearing susceptibility of 6TiB_2/Al-5Cu composite
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摘要
To improve the severe hot tearing susceptibility of TiB_2 reinforced Al-5Cu matrix composites,the present research investigated the influence of Y on the hot tearing susceptibility of 6TiB_2/Al-5Cu composite.For the composite added with Y,the solidification temperature range was shortened,which was caused by the novel τ_1-Al_8Cu_4Y phase.The grain size of 6TiB_2/Al-5Cu composite was 39.8 μm.The addition of Y promoted the grain refinement,and the grain sizes were 36.33,33.42 and 26.77 μm for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,respectively.The decrease of solidification temperature range and grain size was beneficial to the hot tearing susceptibility improvement.Furthermore,the hot tearing initiation force increased from 44 to 288 N,when 1 wt.%Y was added in 6TiB_2/Al-5Cu.For the above significant influence,the hot tearing susceptibility values were reduced by 12.2 wt.%,57.7wt.%and 66.8 wt.%for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,accordingly.
To improve the severe hot tearing susceptibility of TiB_2 reinforced Al-5Cu matrix composites,the present research investigated the influence of Y on the hot tearing susceptibility of 6TiB_2/Al-5Cu composite.For the composite added with Y,the solidification temperature range was shortened,which was caused by the novel τ_1-Al_8Cu_4Y phase.The grain size of 6TiB_2/Al-5Cu composite was 39.8 μm.The addition of Y promoted the grain refinement,and the grain sizes were 36.33,33.42 and 26.77 μm for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,respectively.The decrease of solidification temperature range and grain size was beneficial to the hot tearing susceptibility improvement.Furthermore,the hot tearing initiation force increased from 44 to 288 N,when 1 wt.%Y was added in 6TiB_2/Al-5Cu.For the above significant influence,the hot tearing susceptibility values were reduced by 12.2 wt.%,57.7wt.%and 66.8 wt.%for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,accordingly.
To improve the severe hot tearing susceptibility of TiB_2 reinforced Al-5Cu matrix composites,the present research investigated the influence of Y on the hot tearing susceptibility of 6TiB_2/Al-5Cu composite.For the composite added with Y,the solidification temperature range was shortened,which was caused by the novel τ_1-Al_8Cu_4Y phase.The grain size of 6TiB_2/Al-5Cu composite was 39.8 μm.The addition of Y promoted the grain refinement,and the grain sizes were 36.33,33.42 and 26.77 μm for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,respectively.The decrease of solidification temperature range and grain size was beneficial to the hot tearing susceptibility improvement.Furthermore,the hot tearing initiation force increased from 44 to 288 N,when 1 wt.%Y was added in 6TiB_2/Al-5Cu.For the above significant influence,the hot tearing susceptibility values were reduced by 12.2 wt.%,57.7wt.%and 66.8 wt.%for 6TiB_2/Al-5Cu with 0.2 wt.%,0.5 wt.%and 1 wt.%Y,accordingly.
引文
[1]Siddhalingeshwar I G,Herbert M A,Chakraborty M,MitraR.Effect of mushy state rolling on age-hardening and tensile behavior of Al-4.5Cu alloy and in situ Al-4.5Cu-5TiB 2 composite.Mater.Sci.Eng.,A,2011,528(3):1787.
[2]Langan T J,Pickens J R.The effect of TiB 2 reinforcement on the mechanical properties of an Al-Cu-Li alloy-based metal-matrix composite.Scr.Mater.,1991,25(7):1587.
[3]Xue P,Xiao B L,Ma Z Y.Enhanced strength and ductility of friction stir processed Cu-Al alloys with abundant twin boundaries.Scr.Mater.,2013,68(9):751.
[4]Nabawy A.Influence of additions of Zr,Ti-B,Sr,and Si as well as of mold temperature on the hot-tearing susceptibility of an experimental Al-2%Cu-1%Si alloy.J.Mater.Sci.,2012,47(9):4146.
[5]Phillion A,Hamilton R,Fuloria D,Leung A,Rockett P,Connolley T,Lee P D.In situ X-ray observation of semisolid deformation and failure in Al–Cu alloys.Acta Mater.,2011,59(4):1436.
[6]Li S,Sadayappan K,Apelian D.Role of grain refinement in the hot tearing of cast Al-Cu alloy.Metall.Mater.Trans.B,2013,1.
[7]Lin S,Aliravci C,Pekguleryuz M.Hot-tear susceptibility of aluminum wrought alloys and the effect of grain refining.Metall.Mater.Trans.A,2007,38(5):1056.
[8]Nabawy A,Samuel A,Samuel F,Doty H.Effects of grain refiner additions(Zr,Ti-B)and of mould variables on hot tearing susceptibility of recently developed Al-2 wt.%Cu alloy.Int.J.Cast Met.Res.,2013,26(5):308.
[9]Viano D,StJ ohn D,Grandfield J,Cáceres C.Hot tearing in aluminium-copper alloys.Light Metals,2005,3:895.
[10]Krachan T,Stel’makhovych B,Kuz’ma Y.The Y-Cu-Al system.J.Alloys Compd.,2003,349(1–2):134.
[11]Zhang L G.Thermodynamic description of the Al-Cu-Y ternary system.Calphad,2011,35(4):574.
[12]Rosalbino F,Angelini E,De Negri S,Saccone A,Delfino S.Influence of the rare earth content on the electrochemical behaviour of Al-Mg-Er alloys.Intermetallics,2003,11(5):435.
[13]Dong Y,Lin X P,Xu R,Zheng R G,Fan Z B,Liu S J,Wang Z.Microstructure and compression deformation behavior in the quasicrystal-reinforced Mg-8Zn-1Y alloy solidified under super-high pressure.J.Rare Earths,2014,32(11):1048.
[14]Huang W X,Yan H.Preparation and theoretic study of semi-solid Al2Y/AZ91 magnesium matrix composites slurry by ultrasonic vibration.J.Rare Earths,2014,32(6):573.
[15]Li M,Li X G,Zhang K,Li Y J,Ma M L,Shi G L,Yuan J W,Liu J B.Effects of isothermal homogenization on microstructure evolution of Mg-7Gd-5Y-1MM-0.5Zr alloy.J.Rare Earths,2015,33(4):439.
[16]Li K J,Li Q N,Jing X T,Chen J,Zhang X Y.Effects of Sb,Sm,and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy.Rare Met.,2009,28(5):516.
[17]Lu L,Lai M O,Chen F L.Al-4 wt.%Cu composite reinforced with in-situ TiB 2 particles.Acta Mater.,1997,45(10):4298.
[18]Li Z G.Fabrication of in situ TiB 2 particulates reinforced zinc alloy matrix composite.Mater.Lett.,2014,121:1.
[19]Cao G,Kou S.Hot tearing of ternary Mg-Al-Ca alloy castings.Metall.Mater.Trans.A,2006,37(12):3647.
[20]Cao G,Haygood I,Kou S.Onset of hot tearing in ternary Mg-Al-Sr alloy castings.Metall.Mater.Trans.A,2010,41(8):2139.
[21]Xu H,Xu L D,Zhang S,Han Q.Effect of the alloy composition on the grain refinement of aluminum alloys.Scripta Mater.,2006,54(12):2191.
[22]Easton M,StJ ohn D.An analysis of the relationship between grain size,solute content,and the potency and number density of nucleant particles.Metall.Mater.Trans.A,2005,36(7):1911.
[23]Abdallah E,Ravindran C,Murty B.Effect of Al-Ti-B based master alloys on grain refinement and hot tearing susceptibility of AZ91E magnesium alloy.Mater.Sci.Forum,2011,690:351.
[24]Campbell J.Castings.Oxford:Butterworth-Heinemann,2003.247.
[25]Sistaninia M,Phillion A B,Drezet J M,Rappaz M.Threedimensional granular model of semi-solid metallic alloys undergoing solidification:Fluid flow and localization of feeding.Acta Mater.,2012,60(9):3902.
[26]Eskin D G,Suyitno,Katgerman L.Mechanical properties in the semi-solid state and hot tearing of aluminium alloys.Prog.Mater.Sci.,2004,49(5):629.
[2]Langan T J,Pickens J R.The effect of TiB 2 reinforcement on the mechanical properties of an Al-Cu-Li alloy-based metal-matrix composite.Scr.Mater.,1991,25(7):1587.
[3]Xue P,Xiao B L,Ma Z Y.Enhanced strength and ductility of friction stir processed Cu-Al alloys with abundant twin boundaries.Scr.Mater.,2013,68(9):751.
[4]Nabawy A.Influence of additions of Zr,Ti-B,Sr,and Si as well as of mold temperature on the hot-tearing susceptibility of an experimental Al-2%Cu-1%Si alloy.J.Mater.Sci.,2012,47(9):4146.
[5]Phillion A,Hamilton R,Fuloria D,Leung A,Rockett P,Connolley T,Lee P D.In situ X-ray observation of semisolid deformation and failure in Al–Cu alloys.Acta Mater.,2011,59(4):1436.
[6]Li S,Sadayappan K,Apelian D.Role of grain refinement in the hot tearing of cast Al-Cu alloy.Metall.Mater.Trans.B,2013,1.
[7]Lin S,Aliravci C,Pekguleryuz M.Hot-tear susceptibility of aluminum wrought alloys and the effect of grain refining.Metall.Mater.Trans.A,2007,38(5):1056.
[8]Nabawy A,Samuel A,Samuel F,Doty H.Effects of grain refiner additions(Zr,Ti-B)and of mould variables on hot tearing susceptibility of recently developed Al-2 wt.%Cu alloy.Int.J.Cast Met.Res.,2013,26(5):308.
[9]Viano D,StJ ohn D,Grandfield J,Cáceres C.Hot tearing in aluminium-copper alloys.Light Metals,2005,3:895.
[10]Krachan T,Stel’makhovych B,Kuz’ma Y.The Y-Cu-Al system.J.Alloys Compd.,2003,349(1–2):134.
[11]Zhang L G.Thermodynamic description of the Al-Cu-Y ternary system.Calphad,2011,35(4):574.
[12]Rosalbino F,Angelini E,De Negri S,Saccone A,Delfino S.Influence of the rare earth content on the electrochemical behaviour of Al-Mg-Er alloys.Intermetallics,2003,11(5):435.
[13]Dong Y,Lin X P,Xu R,Zheng R G,Fan Z B,Liu S J,Wang Z.Microstructure and compression deformation behavior in the quasicrystal-reinforced Mg-8Zn-1Y alloy solidified under super-high pressure.J.Rare Earths,2014,32(11):1048.
[14]Huang W X,Yan H.Preparation and theoretic study of semi-solid Al2Y/AZ91 magnesium matrix composites slurry by ultrasonic vibration.J.Rare Earths,2014,32(6):573.
[15]Li M,Li X G,Zhang K,Li Y J,Ma M L,Shi G L,Yuan J W,Liu J B.Effects of isothermal homogenization on microstructure evolution of Mg-7Gd-5Y-1MM-0.5Zr alloy.J.Rare Earths,2015,33(4):439.
[16]Li K J,Li Q N,Jing X T,Chen J,Zhang X Y.Effects of Sb,Sm,and Sn additions on the microstructure and mechanical properties of Mg-6Al-1.2Y-0.9Nd alloy.Rare Met.,2009,28(5):516.
[17]Lu L,Lai M O,Chen F L.Al-4 wt.%Cu composite reinforced with in-situ TiB 2 particles.Acta Mater.,1997,45(10):4298.
[18]Li Z G.Fabrication of in situ TiB 2 particulates reinforced zinc alloy matrix composite.Mater.Lett.,2014,121:1.
[19]Cao G,Kou S.Hot tearing of ternary Mg-Al-Ca alloy castings.Metall.Mater.Trans.A,2006,37(12):3647.
[20]Cao G,Haygood I,Kou S.Onset of hot tearing in ternary Mg-Al-Sr alloy castings.Metall.Mater.Trans.A,2010,41(8):2139.
[21]Xu H,Xu L D,Zhang S,Han Q.Effect of the alloy composition on the grain refinement of aluminum alloys.Scripta Mater.,2006,54(12):2191.
[22]Easton M,StJ ohn D.An analysis of the relationship between grain size,solute content,and the potency and number density of nucleant particles.Metall.Mater.Trans.A,2005,36(7):1911.
[23]Abdallah E,Ravindran C,Murty B.Effect of Al-Ti-B based master alloys on grain refinement and hot tearing susceptibility of AZ91E magnesium alloy.Mater.Sci.Forum,2011,690:351.
[24]Campbell J.Castings.Oxford:Butterworth-Heinemann,2003.247.
[25]Sistaninia M,Phillion A B,Drezet J M,Rappaz M.Threedimensional granular model of semi-solid metallic alloys undergoing solidification:Fluid flow and localization of feeding.Acta Mater.,2012,60(9):3902.
[26]Eskin D G,Suyitno,Katgerman L.Mechanical properties in the semi-solid state and hot tearing of aluminium alloys.Prog.Mater.Sci.,2004,49(5):629.