研究了Zn与Al质量比对Mg-Zn-Al三元镁合金铸态组织和凝固行为的影响.结果表明:Zn与Al质量比小于2的实验合金主要由α-Mg+Mg32(Al,Zn)49相组成,且随着Zn与Al质量比的增加,实验合金中第二相的数量逐渐减少,同时其分布由连续网状逐渐向断续状转变;Zn与Al质量比大于2的实验合金则主要由α-Mg+Mg32(Al,Zn)49+MgZn相组成,且随着Zn与Al质量比的增加,实验合金中第二相的数量逐渐增加,同时其分布由断续网状逐渐向颗粒弥散状转变;此外,Zn与Al质量比小于2的实验合金的第二相转变开始温度和峰值温度基本上高于Zn与Al质量比大于2的实验合金,从而导致第二相转变过程中不同相变的发生和第二相类型的不同.
参考文献
| [1] | LUO A;PEKGULERYUZ M Z .Review cast magnesium alloys for elevated temperature applications[J].Journal of Materials Science,1994,29:5259-5271. |
| [2] | BOURGEOIS L;MUDDLE B C;NIE J F .The crystal structure of the equilibrium phase in Mg-Zn-Al casting alloys[J].Acta Materialia,2001,49:2701-2711. |
| [3] | VOGEL M;KRAFT O;ARZT E .Creep behavior of magnesium die-cast alloy ZA85[J].Scripta Materialia,2001,48:985-990. |
| [4] | 杨光昱,介万奇,郝启堂.Mg-5Zn-3Al-0.2Mn铸造合金的组织和室温力学性能[J].中国有色金属学报,2006(02):205-212. |
| [5] | Zhan Zhang;Alain Couture;Alan Luo .An investigation of the properties of Mg-Zn-Al alloys[J].Scripta materialia,1998(1):45-53. |
| [6] | 李冠群,吴国华,樊昱,丁文江,朱燕萍.Al/Zn比对镁合金组织、力学性能及耐蚀性的影响[J].铸造技术,2005(10):922-926. |
| [7] | ANYANWU L A;KAMADO S;HONDA T .Heat resistance of Mg-Zn-Al-Ca alloy casting[J].Materials Science Forum,2000,350-351:73-78. |
| [8] | ZHANG J;GUO Z X;PAN F S;LI Z S LUO X D .Effect of composition on the mierostructure and mechanical properties of Mg-Zn-Al alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,456:43-51. |
| [9] | ZHANG Jing,LI Zhong-sheng,GUO Zheng-xiao,PAN Fu-sheng.Solidification microstructural constituent and its crystallographic morphology of permanent-mould-cast Mg-Zn-Al alloys[J].中国有色金属学会会刊（英文版）,2006(02):452-458. |
| [10] | 曾小勤,丁文江,姚正裔,彭立明,卢晨.Mg-Zn-Al系合金组织和力学性能[J].上海交通大学学报,2005(01):46-51. |
| [11] | Wang YX;Guan SK;Zeng XQ;Dine WJ .Effects of RE on the microstructure and mechanical properties of Mg-8Zn-4Al magnesium alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1-2):109-118. |
| [12] | Z. ZHANG;R. TREMBLAY .SOLIDIFICATION MICROSTRUCTURE OF ZA102, ZA104 AND ZA106 MAGNESIUM ALLOYS AND ITS EFFECT ON CREEP DEFORMATION[J].Canadian Metallurgical Quarterly,2000(4):503-512. |
| [13] | LING H;CHEN S L;CHANG Y A .A thermodynamics description of the Al-Mg-Zn system[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1997,28:1725-1734. |
| [14] | 王迎新,关绍康,王建强.RE对Mg-8Zn-4Al-0.3Mn合金组织的影响[J].中国有色金属学报,2003(03):616-621. |
| [15] | L. Peng;F. Yang;J.-F. Nie .Impression creep of a Mg-8Zn-4Al-0.5Ca alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(0):42-47. |
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