制备了YAl2稀土金属间化合物颗粒增强的镁锂基复合材料.利用透射电镜、高分辨电子显微镜及X射线衍射仪研究了YAl2p/MgLiAl复合材料热稳定性,结果表明,经过400℃30h热处理,YAl2颗粒与基体合金界面结合良好,没有明显的反应物.拉伸实验结果表明,热处理处理后YAl2p/MgLiAl复合材料的抗拉强度为220Mpa,延伸率为12%,分别比铸态提高了11%和20%.讨论了YAl2颗粒与镁锂合金的热力学相容性,表明YAl2颗粒与镁锂合金发生反应的热力学驱动力很小.
参考文献
| [1] | NAYEB-HASHEMI A A;PELTON A B .The Li-Mg (Lithium-Magnesium) system[J].Bulletin of Alloy Phase Diagrams,1985,5(02):365-371. |
| [2] | S.R.AGNEW;M.H.YOO;C.N.TOME .APPLICATION OF TEXTURE SIMULATION TO UNDERSTANDING MECHANICAL BEHAVIOR OF Mg AND SOLID SOLUTION ALLOYS CONTAINING Li OR Y[J].Acta materialia,2001(20):4277-4289. |
| [3] | S. Kudela .Magnesium-lithium matrix composites―an overview[J].International journal of materials & product technology,2003(1/3):91-115. |
| [4] | MASO J F;WARWICK C M;SMITH P J et al.Magne sium-lithium alloys in metal matrix composites-A preliminary report[J].Journal of Materials Science,1989,24:3934-3946. |
| [5] | J. A. Jensen;F. C. Laabs;L. S. Chumbley .Microstructure of heavily deformed magnesium-lithium composites containing steel fibers[J].Journal of Materials Engineering and Performance,1998(3):375-384. |
| [6] | GONZáLEZ-DONCEL G;WOLFENSTINE J;METENIERP et al.The use of foil metallurgy processing to achieve ultrafine grained Mg-9Li laminates and Mg-9Li-5B4C particulate composites[J].Journal of Materials Science,1990,25:4535-4540. |
| [7] | MASON J F .The Fabrcation and Mechanical of Mg-Li Alloys Reinforced with SiC Whiskers[D].Cambridge University,1990. |
| [8] | 马春江;张荻;覃继宁 等.MgLiAL/SiCw复合材料组织与性能的研究[J].机械工程材料,1999,23(03):4-6. |
| [9] | WOLFENSTINE J;GONZ LEZ-Doncel G;SHERBY O D .Elevated temperature properties of Mg-14I-B particulate composites[J].Journal of Materials Research,1990,5:1359-1362. |
| [10] | WOLFENSTINE J;GONZ LEZ-Doncel G;SHERBY O D .Tension versus compression supcrplastic behavior of a Mg9wt.% Li-Swt.% B4 C composite[J].Materials Letters,1992,15:305-308. |
| [11] | KúDELA S;GERGELY V;BAUNACK S et al.Fracturechemistry of Saffil fibers in an MgLi matrix environment[J].Journal of Materials Science,1997,32:2155-2162. |
| [12] | WHALEN R T;GONZdLEZ-DONCEL;ROBINSON S L et al.Mechanical Properties of Particulate Composites Base on A Body-Centered-Cubic Mg-Li Alloy Containing Boron[J].Scripta Metallurgica,1989,23:137-140. |
| [13] | 卢庆亮,于化顺,闵光辉,王常春,冯刚.MgO/Mg2Si增强Mg-Li基复合材料的界面结构[J].稀有金属材料与工程,2005(09):1427-1429. |
| [14] | YOU C P;THOMPSON A W;BERNSTEIN I M .Proposed failure mechanism in a discontinuously reinforced aluminum alloy[J].Scripta Materialia,1987,21:1815. |
| [15] | WANG S J;WU G Q;LI R H et al.Microstruetures and mechanical properties of 5w.t% YAl2Mg-Li composite[J].Materials Letters,2006,60:1863-1865. |
| [16] | BORZONE G;CICCIOLI A;CIGNINI P L et al.Thermodynamies of the YA1 YA12 system[J].Intermetallics,2000,8:203-212. |
| [17] | 伊赫桑·巴伦.纯物质热化学数据手册[M].北京:科学出版社,2003 |
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