Al-Zn-Zr三元系800℃等温截面的实验测定（英文）
|
摘要
利用扩散偶和平衡合金法,采用扫描电镜-能谱、X射线衍射和电子探针分析方法对Al-Zn-Zr三元系800℃等温截面进行实验测定。实验确定了13个三相区;三元化合物Zn_(50)Al_(25)Zr_(25)(T相)稳定存在于此等温截面,拥有比较大的成分区间(16.84%～55.1%Zn、18.02%～56.3%Al和26.0%～28.53%Zr,摩尔分数),并能与该体系中所有的二元化合物平衡共存。Zn在Zr-Al化合物Zr_3Al、Zr_2Al、Zr_3Al_2、Zr_4Al_3、ZrAl、Zr_2Al_3、Zr l_2和ZrAl_3中最大溶解度分别是7.5%、0.84%、0.33%、0.89%、0.91%、1.12%、0.64%和3.8%(摩尔分数);Al在Zn-Zr化合物Zn_3Zr、Zn_2Zr和ZnZr中最大溶解度分别是1.6%、1.3%和13.6%(摩尔分数)。
The 800 ℃ isothermal section in the Al-Zn-Zr system was investigated using the equilibrated alloy method and the solid/liquid diffusion couple approach by means of scanning electron microscopy equipped with energy dispersive spectroscopy, X-ray powder diffraction and electron probe microanalysis. Thirteen three-phase regions are experimentally confirmed in the ternary system. A ternary compound Zn_(50)Al_(25)Zr_(25) named as T phase exists stably in the 800 ℃ isothermal section. Its composition range varies widely(16.84-55.1 at.% Zn, 18.02-56.3 at.% Al and 26.0-28.53 at.% Zr), and it can be in equilibrium with all the binary compounds. The maximum solubilities of Zn in Zr_3Al, Zr_2Al, Zr_3Al_2, Zr_4Al_3, ZrAl, Zr_2Al_3, ZrAl_2 and ZrAl_3 are 7.5, 0.84, 0.33, 0.89, 0.91, 1.12, 0.64 and 3.8 at.%, respectively. The maximum solubilities of Al in Zn_3Zr, Zn_2Zr and ZnZr are 1.6, 1.3 and 13.6 at.%, respectively.
The 800 ℃ isothermal section in the Al-Zn-Zr system was investigated using the equilibrated alloy method and the solid/liquid diffusion couple approach by means of scanning electron microscopy equipped with energy dispersive spectroscopy, X-ray powder diffraction and electron probe microanalysis. Thirteen three-phase regions are experimentally confirmed in the ternary system. A ternary compound Zn_(50)Al_(25)Zr_(25) named as T phase exists stably in the 800 ℃ isothermal section. Its composition range varies widely(16.84-55.1 at.% Zn, 18.02-56.3 at.% Al and 26.0-28.53 at.% Zr), and it can be in equilibrium with all the binary compounds. The maximum solubilities of Zn in Zr_3Al, Zr_2Al, Zr_3Al_2, Zr_4Al_3, ZrAl, Zr_2Al_3, ZrAl_2 and ZrAl_3 are 7.5, 0.84, 0.33, 0.89, 0.91, 1.12, 0.64 and 3.8 at.%, respectively. The maximum solubilities of Al in Zn_3Zr, Zn_2Zr and ZnZr are 1.6, 1.3 and 13.6 at.%, respectively.
引文
[1]HEINZ A,HASZLER A,KEIDEL C,MOLDENHAUER S,BENEDICTUS R,MILLER W S.Recent development in aluminium alloys for aerospace applications[J].Materials Science and Engineering A,2000,280:102-107.
[2]CHEN Lu,YAN An,LIU Hua-shan,LI Xiao-qian.Strength and fatigue fracture behavior of Al-Zn-Mg-Cu-Zr(-Sn)alloys[J].Transactions of Nonferrous Metals Society of China,2013,23:2817-2825.
[3]ZHANG Wei,XING Yuan,JIA Zhi-hong,YANG Xiao-fang,LIUQing,ZHU Chang-luo.Effect of minor Sc and Zr addition on microstructure and properties of ultra-high strength aluminum alloy[J].Transactions of Nonferrous Metals Society of China,2014,24:3866-3871.
[4]WU H,WEN S P,GAO K Y,HUANG H,WANG W,NIE Z R.Effect of Er additions on the precipitation strengthening of Al-Hf alloys[J].Scripta Materialia,2014,87:5-8.
[5]DEV S,STUART A A,KUMAAR R C R D,MURTY B S,RAO KP.Effect of scandium additions on microstructure and mechanical properties of Al-Zn-Mg alloy welds[J].Materials Science and Engineering A,2007,467:132-138.
[6]SUN Y W,JOHNSON D R,TRUMBLE K P.Effect of Zr on recrystallization in a directionally solidified AA7050[J].Materials Science and Engineering A,2017,700:358-365.
[7]WU H,WEN S P,HUANG H,LI B L,WU X L,GAO K Y,WANGW,NIE Z R.Effects of homogenization on precipitation of Al3(Er,Zr)particles and recrystallization behavior in a new type Al-Zn-Mg-Er-Zr alloy[J].Materials Science and Engineering A,2017,689:313-322.
[8]YIN Z M,YANG L,PAN Q L,JIANG F.Effect of minor Sc and Zr on the microstructure and mechanical properties of Al-Zn-Mg based alloys[J].Transactions of Nonferrous Metals Society of China,2001,11:822-825.
[9]WANG X,CHEN G Q,LI B,WU L M,JIANG D M.Effects of Sc,Zr and Ti on the microstructure and properties of Al alloys with high Mg content[J].Rare Metals,2010,29(1):66-71.
[10]JIAO L,ZHAO Y T,CHEN J C,CHEN L.Microstructure and properties of Al3Zr/2024Al in situ composites after forging[J].Rare Metals,2016,35(12):920-925.
[11]LIU Bin,WANG Ming-pu,LEI Qian,DUAN Yu-lu,LIU Lin-xian,YU Hong-chun.Microstructure and properties of Al-Zn-Mg-CuZr alloy prepared by spray deposition method[J].Transactions of Nonferrous Metals Society of China,2015,25(7):1773-1780.
[12]EIVANI A R,AHMED H,ZHOU J,DUSZCZYK J.An experimental and theoretical investigation of the formation of Zr-containing dispersoids in Al-4.5Zn-1Mg aluminum alloy[J].Materials Science and Engineering A,2010,527(9):2418-2430.
[13]ROBSON J D,PRANGNELL P B.Dispersoid precipitation and process modelling in zirconium containing commercial aluminium alloys[J].Acta Materialia,2001,49(4):599-613.
[14]MORERE B,MAURICE C,SHAHANI R,DRIVER J.The Influence of Al3Zr dispersoids on the recrystallization of hot-deformed AA7010 alloys[J].Metallurgical and Materials Transactions A,2001,32(3):625-632.
[15]MARDER A R.The metallurgy of zinc-coated steel[J].Progress in Materials Science,2000,45:191-271.
[16]ZHANG B.Development of corrosion resistant galvanizing alloys(Birmingham)[D].Birmingham:The University of Birmingham,2005:137-144.
[17]CHEN L P,YIN F C,OUYANG X M,ZHAO M X.Experimental investigation of the phase equilibria of the Zn-Al-Zr ternary system at 723 K(450°C)[J].Metallurgical and Materials Transactions A,2015,46(11):4956-4965.
[18]MEY S A.Reevaluation of the Al-Zn system[J].International Journal of Materials Research,1993,84:451-455.
[19]CHEN S L,CHANG Y A.A Thermodynamic analyses of the Al-Zn system and phase diagram calculation[J].Calphad,1993,17:113-124.
[20]MASSALSKI T B,OKAMOTO H,SUBRAMANIAN P R,KACPRZAK L.Binary alloy phase diagrams[M].2nd ed.Materials Park:ASM,1990.
[21]DUTKIEWICZ J.The Zn-Zr(zinc-zirconium)system[J].Journal of Phase Equilibria and Diffusion,1992,13(4):430-433.
[22]WILLIAMS M E,BOETTINGER W J,KATNER U R.Contribution to the Zr-rich part of the Zn-Zr phase diagram[J].Journal of Phase Equilibria and Diffusion,2004,25(4):355-363.
[23]ARROYAVE R,LIU Z K.Thermodynamic modelling of the Zn-Zr system[J].Calphad,2006,30(1):1-13.
[24]OKAMOTO H.Al-Zr(aluminum-zirconium)[J].Journal of Phase Equilibria and Diffusion,1993,14:259-260.
[25]WANG T,JIN Z P,ZHAO J C.Thermodynamic assessment of the Al-Zr binary system[J].Journal of Phase Equilibria and Diffusion,2001,22:544-551.
[26]DRASNER A,BLAZINA Z.Structural studies in the systems ZrZn2-xAlx and HfZn2-xAlx[J].Zeitschrift fur Naturforschung Section A,1981,36b:1547-1550.
[27]SCHUBERT K,MEISSNER H G,RAMAN A,ROSSTEUTSCHERW.Some structural information of metallic phases(9)[J].Naturwissenschaften,1964,51:287.
[28]CLARK N J,WU E.Hydrogen absorption in the Zr-Al system[J].Journal of the Less Common Metals,1990,163:227-243.
[29]MURRAY J,PERUZZI A,BARILOCHE J P.The Al-Zr(aluminum-zirconium)system[J].Journal of Phase Equilibria and Diffusion,1992,13:277-291.
[30]HAFEZ M,SLEBARSKI A.Magnetic and structural investigations of Zr1-xGdxAl2 alloys[J].Journal of Magnetism and Magnetic Materials,1990,89:124-128.
[31]MA Y,ROMMING C,LEBECH B,GJONNES J,TAFTO J.Structure refinement of Al3Zr using single-crystal X-ray diffraction,powder neutron diffraction and CBED[J].Acta Crystallographica Section B,1992,48:11-16.
[32]VILLARS P,CALVERT L D.Pearson's handbook of crystallographic data for intermetallic phases[M].4 ed.Materials Park,ASMInternational,1991:53-65.
[33]SCHREURS L W M,WEIJERS H M,DEURSEN A P J,VROOMEN A R.Growth and electrical properties of ZrZn2 single crystals[J].Materials Research Bulletin,1989,24:1141-1145.
[34]SU X P,TANG N Y,TOGURI J M.450°C isothermal section of the Fe-Zn-Si ternary phase diagram[J].Canadian Metallurgical Quarterly,2001,40:337-384.
[35]GUO Z K,LIN Z X,YAN T S.High temperature phase equilibria and phase diagrams[M].Shanghai:Shanghai Scientific and Technical Publishers,1987.(in Chinese)
[2]CHEN Lu,YAN An,LIU Hua-shan,LI Xiao-qian.Strength and fatigue fracture behavior of Al-Zn-Mg-Cu-Zr(-Sn)alloys[J].Transactions of Nonferrous Metals Society of China,2013,23:2817-2825.
[3]ZHANG Wei,XING Yuan,JIA Zhi-hong,YANG Xiao-fang,LIUQing,ZHU Chang-luo.Effect of minor Sc and Zr addition on microstructure and properties of ultra-high strength aluminum alloy[J].Transactions of Nonferrous Metals Society of China,2014,24:3866-3871.
[4]WU H,WEN S P,GAO K Y,HUANG H,WANG W,NIE Z R.Effect of Er additions on the precipitation strengthening of Al-Hf alloys[J].Scripta Materialia,2014,87:5-8.
[5]DEV S,STUART A A,KUMAAR R C R D,MURTY B S,RAO KP.Effect of scandium additions on microstructure and mechanical properties of Al-Zn-Mg alloy welds[J].Materials Science and Engineering A,2007,467:132-138.
[6]SUN Y W,JOHNSON D R,TRUMBLE K P.Effect of Zr on recrystallization in a directionally solidified AA7050[J].Materials Science and Engineering A,2017,700:358-365.
[7]WU H,WEN S P,HUANG H,LI B L,WU X L,GAO K Y,WANGW,NIE Z R.Effects of homogenization on precipitation of Al3(Er,Zr)particles and recrystallization behavior in a new type Al-Zn-Mg-Er-Zr alloy[J].Materials Science and Engineering A,2017,689:313-322.
[8]YIN Z M,YANG L,PAN Q L,JIANG F.Effect of minor Sc and Zr on the microstructure and mechanical properties of Al-Zn-Mg based alloys[J].Transactions of Nonferrous Metals Society of China,2001,11:822-825.
[9]WANG X,CHEN G Q,LI B,WU L M,JIANG D M.Effects of Sc,Zr and Ti on the microstructure and properties of Al alloys with high Mg content[J].Rare Metals,2010,29(1):66-71.
[10]JIAO L,ZHAO Y T,CHEN J C,CHEN L.Microstructure and properties of Al3Zr/2024Al in situ composites after forging[J].Rare Metals,2016,35(12):920-925.
[11]LIU Bin,WANG Ming-pu,LEI Qian,DUAN Yu-lu,LIU Lin-xian,YU Hong-chun.Microstructure and properties of Al-Zn-Mg-CuZr alloy prepared by spray deposition method[J].Transactions of Nonferrous Metals Society of China,2015,25(7):1773-1780.
[12]EIVANI A R,AHMED H,ZHOU J,DUSZCZYK J.An experimental and theoretical investigation of the formation of Zr-containing dispersoids in Al-4.5Zn-1Mg aluminum alloy[J].Materials Science and Engineering A,2010,527(9):2418-2430.
[13]ROBSON J D,PRANGNELL P B.Dispersoid precipitation and process modelling in zirconium containing commercial aluminium alloys[J].Acta Materialia,2001,49(4):599-613.
[14]MORERE B,MAURICE C,SHAHANI R,DRIVER J.The Influence of Al3Zr dispersoids on the recrystallization of hot-deformed AA7010 alloys[J].Metallurgical and Materials Transactions A,2001,32(3):625-632.
[15]MARDER A R.The metallurgy of zinc-coated steel[J].Progress in Materials Science,2000,45:191-271.
[16]ZHANG B.Development of corrosion resistant galvanizing alloys(Birmingham)[D].Birmingham:The University of Birmingham,2005:137-144.
[17]CHEN L P,YIN F C,OUYANG X M,ZHAO M X.Experimental investigation of the phase equilibria of the Zn-Al-Zr ternary system at 723 K(450°C)[J].Metallurgical and Materials Transactions A,2015,46(11):4956-4965.
[18]MEY S A.Reevaluation of the Al-Zn system[J].International Journal of Materials Research,1993,84:451-455.
[19]CHEN S L,CHANG Y A.A Thermodynamic analyses of the Al-Zn system and phase diagram calculation[J].Calphad,1993,17:113-124.
[20]MASSALSKI T B,OKAMOTO H,SUBRAMANIAN P R,KACPRZAK L.Binary alloy phase diagrams[M].2nd ed.Materials Park:ASM,1990.
[21]DUTKIEWICZ J.The Zn-Zr(zinc-zirconium)system[J].Journal of Phase Equilibria and Diffusion,1992,13(4):430-433.
[22]WILLIAMS M E,BOETTINGER W J,KATNER U R.Contribution to the Zr-rich part of the Zn-Zr phase diagram[J].Journal of Phase Equilibria and Diffusion,2004,25(4):355-363.
[23]ARROYAVE R,LIU Z K.Thermodynamic modelling of the Zn-Zr system[J].Calphad,2006,30(1):1-13.
[24]OKAMOTO H.Al-Zr(aluminum-zirconium)[J].Journal of Phase Equilibria and Diffusion,1993,14:259-260.
[25]WANG T,JIN Z P,ZHAO J C.Thermodynamic assessment of the Al-Zr binary system[J].Journal of Phase Equilibria and Diffusion,2001,22:544-551.
[26]DRASNER A,BLAZINA Z.Structural studies in the systems ZrZn2-xAlx and HfZn2-xAlx[J].Zeitschrift fur Naturforschung Section A,1981,36b:1547-1550.
[27]SCHUBERT K,MEISSNER H G,RAMAN A,ROSSTEUTSCHERW.Some structural information of metallic phases(9)[J].Naturwissenschaften,1964,51:287.
[28]CLARK N J,WU E.Hydrogen absorption in the Zr-Al system[J].Journal of the Less Common Metals,1990,163:227-243.
[29]MURRAY J,PERUZZI A,BARILOCHE J P.The Al-Zr(aluminum-zirconium)system[J].Journal of Phase Equilibria and Diffusion,1992,13:277-291.
[30]HAFEZ M,SLEBARSKI A.Magnetic and structural investigations of Zr1-xGdxAl2 alloys[J].Journal of Magnetism and Magnetic Materials,1990,89:124-128.
[31]MA Y,ROMMING C,LEBECH B,GJONNES J,TAFTO J.Structure refinement of Al3Zr using single-crystal X-ray diffraction,powder neutron diffraction and CBED[J].Acta Crystallographica Section B,1992,48:11-16.
[32]VILLARS P,CALVERT L D.Pearson's handbook of crystallographic data for intermetallic phases[M].4 ed.Materials Park,ASMInternational,1991:53-65.
[33]SCHREURS L W M,WEIJERS H M,DEURSEN A P J,VROOMEN A R.Growth and electrical properties of ZrZn2 single crystals[J].Materials Research Bulletin,1989,24:1141-1145.
[34]SU X P,TANG N Y,TOGURI J M.450°C isothermal section of the Fe-Zn-Si ternary phase diagram[J].Canadian Metallurgical Quarterly,2001,40:337-384.
[35]GUO Z K,LIN Z X,YAN T S.High temperature phase equilibria and phase diagrams[M].Shanghai:Shanghai Scientific and Technical Publishers,1987.(in Chinese)