选用直径200μm,纯度99.5％的钛丝丝网为反应源,通过熔渗+原位反应法制备出一种Al3Ti金属间化合物颗粒增强铝基表面复合涂层.通过差热分析仪(DTA)、X衍射分析仪(XRD)、电子扫描显微镜(SEM)、显微硬度计、摩擦磨损试验机对Ti丝与基体间的合成温度以及所得到的复合涂层进行分析,结果表明:根据差热分析的峰的变化情况,确定反应温度为890℃,当保温时间延长到20 min时,钛丝在铝基体中的反应较完全,原位合成为块状和条状的Al3Ti颗粒;颗粒的显微硬度(562 HV0.1)大约为基体显微硬度(123 HV0.1)的4.5倍;相对于没有增强体的Al基体而言,在载荷为10N的干滑动磨损条件下,保温20 min所制备的复合涂层表现出较好的耐磨性,其磨损机制表现为粘着磨损和磨粒磨损共存.
参考文献
| [1] | 霍小卫,王树奇,陈康敏.SHS法反应合成Al3Ti/Al复合材料的研究[J].航空材料学报,2007(05):71-76. |
| [2] | 陈为为,何业东.TiAl合金表面机械研磨渗铝涂层的制备及高温性能[J].材料热处理学报,2011(06):138-142. |
| [3] | 介万奇,E.G.Kandalova,张瑞杰,V.I.Nikitin.SHS法制备Al3Ti/Al复合材料的研究[J].稀有金属材料与工程,2000(03):145-148. |
| [4] | Nayaka S S;Pabia S K;Murty B S .Al-(L12) A13Ti nanocomposites prepared by mechanical alloying:Synthesis and mechanical properties[J].Journal of Alloys and Compounds,2010,492:128-133. |
| [5] | Karabi Das;L.K. Narnaware .A study of microstructure and tribological behaviour of Al-4.5% Cu/Al_3Ti composites[J].Materials Characterization,2009(8):808-816. |
| [6] | Watanabe Y;Yamanaka N;Fukui Y .Wear behavior of Al-Al3Ti composite manufactured by a centrifugal method[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1999,30:3253-3261. |
| [7] | 席生岐,周敬恩,朱蕊花,郑玉峰,郑修麟.高能球磨制备Al3Ti/Al块体纳米晶复合材料[J].中国有色金属学报,2002(z1):115-119. |
| [8] | 赵玉厚,严文,周敬恩,李建平,董晟全.原位生成AlN-Al3Ti复合增强铝基复合材料研究[J].稀有金属材料与工程,2003(10):792-795. |
| [9] | 陈登斌,赵玉涛,李桂荣,郑梦,陈刚.高能超声对原位合成Al_3Ti/6070复合材料凝固组织的影响及机制[J].中国有色金属学报,2009(11):1956-1961. |
| [10] | S. C. Ferreira;P. D. Sequeira;Yoshimi Watanabe;E. Ariza;L. A. Rocha .Microstructural characterization and tribocorrosion behaviour of Al/Al_3Ti and Al/Al_3Zr FGMs[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2011(11/12):806-814. |
| [11] | Feng C F;Froyen L .Formation of Al3Ti and Al2O3 from an Al-TiO2 system for preparing in situ aluminium matrix composites[J].Composites A,2000,31:385-390. |
| [12] | Srinivasan S;Desch P B;Schwarz R B .Metastable phases in the Al3X (X D Ti,Zr and Hf) intermetallic system[J].Scripta Materialia,1991,25:2513-2517. |
| [13] | ALPAS A.T;ZHANG J .Effect of microstructure (particle size and volume fraction) and counter face material on the sliding wear resistance of particulate reinforced aluminum matrix composite[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1994,25:969-981. |
| [14] | 刘晓波,赵宇光,杨雯,张家陶.（Mg_2Si＋SiC_p）/Mg复合材料的耐磨性[J].吉林大学学报：工学版,2011(06):1618-1624. |
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