采用离心铸造方法制备了Al-16Si-6Ti复合材料筒状零件,使用SEM,EDS及OM观察分析了复合材料中的微观组织,使用Image Tool测算了铸件中初生颗粒的体积分数,测试了复合材料的硬度及耐磨性能.结果表明:离心铸造Al-16Si-6Ti筒状零件沿半径方向形成了具有大量初生Ti(AlSi)2颗粒的外层增强层组织,无初生颗粒的铝基体中间层组织以及含有少量初生Si颗粒的内层组织.从外壁到内壁,铸件的硬度及初生颗粒的体积分数均呈现先由高到低,然后小幅上升的变化规律.铸件外层组织具有最好的耐磨性能.在离心场中,初生Ti(AlSi)2向铸件外侧偏移、聚集,形成了高体积分数的初晶Ti(AlSi)2颗粒增强铸件外层的Al基复合材料.
参考文献
| [1] | TORABIAN H;PATHAK J P;TIWARI S N .Wear characteristics of Al-Si alloys[J].Wear,1994,172(01):49-58. |
| [2] | 谭银元.离心铸造Al-16wt%Si合金自生梯度复合材料[J].复合材料学报,2002(05):47-51. |
| [3] | 钱建刚,张家祥,王纯,李淑青.AZ91D镁合金表面激光等离子复合喷涂Al-Si/Al+Al2O3涂层的研究[J].航空材料学报,2011(03):60-64. |
| [4] | 弗兰兹·吕克特;彼得·斯托克;罗兰德·比德曼 .超共晶硅铝合金汽缸衬筒及其制造方法[P].中国专利:CN1129743,1996-08-28 |
| [5] | Tae Kwon Ha;Woo-Jin Park;Sangho Ahn .Fabrication of spray-formed hypereutectic Al-25Si alloy and its deformation behavior[J].Journal of Materials Processing Technology,2002(0):691-695. |
| [6] | Uozato S;Nakata K;Ushio M .Evaluation of ferrous powder thermal spray coatings on diesel engine cylinder bores[J].Surface & Coatings Technology,2005(7):2580-2586. |
| [7] | Bobzin K;Ernst F;Richardt K;Schlaefer T;Verpoort C;Flores G .Thermal spraying of cylinder bores with the Plasma Transferred Wire Arc process[J].Surface & Coatings Technology,2008(18):4438-4443. |
| [8] | ZHAI Yan-bo,LIU Chang-ming,WANG Kai,ZOU Mao-hua,XIE Yong.Characteristics of two Al based functionally gradient composites reinforced by primary Si particles and Si/in situ Mg2Si particles in centrifugal casting[J].中国有色金属学报（英文版）,2010(03):361-370. |
| [9] | FUKUI Y .Fundamental investigation of functionally gradient material manufacturing system using centrifugal force[J].JSME International Journal Series Ⅲ-Vibration Control Engineering Engineering for Industry,1991,34(01):144-148. |
| [10] | 刘昌明;翟彦博;谢勇 等.内层颗粒增强缸套及其制造方法[P].中国专利:200810070197.0,2009-01-07. |
| [11] | CHEN X G;FORTIER M .Formation of primary TiAlSi intermetallic compounds in Al Si foundry alloys[J].Materials Forum,2004,28:659-665. |
| [12] | V. Raghavan .Al-Si-Ti (Aluminum-Silicon-Titanium)[J].Journal of Phase Equilibria and Diffusion,2005(6):624-628. |
| [13] | CHOI C J;PARK J K .Effect of Si addition on mechanical alloying behavior and creep properties of Al-10Ti-xSi alloys[J].Metals and Materials International,1999,5(02):179-184. |
| [14] | N. Saheb;T. Laoui;A. R. Daud;M. Harun;S. Radiman;R. Yahaya .Influence of Ti addition on wear properties of Al-Si eutectic alloys[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2001(8):656-662. |
| [15] | Muzaffer Zeren;Erdem Karakulak .Influence of Ti addition on the microstructure and hardness properties of near-eutectic Al-Si alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):255-259. |
| [16] | Tong Gao;Pengting Li;Yunguo Li .Influence of Si and Ti contents on the microstructure, microhardness and performance of TiAlSi intermetallics in Al-Si-Ti alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2011(31):8013-8017. |
| [17] | Tetsuro Ogawa;Yoshimi Watanabe;Hisashi Sato .Theoretical study on fabrication of functionally graded material with density gradient by a centrifugal solid-particle method[J].Composites, Part A. Applied science and manufacturing,2006(12):2194-2200. |
| [18] | NOWOTNY H;HUSCHKA H .Studies of the partial systems Al-TiSi2,Al-ZrSi2,Al-WSi2[J].Monatshefte Fur Chemie,1957,88:494-501. |
| [19] | BRUKL C;NOWOTNY H;SCHOB O et al.Die Kristallstrukturen von TiSi,Ti(Al,Si)2 und Mo(Al,Si)2[J].Monatshefte Fur Chemie,1961,92:781-788. |
| [20] | SCHOB O;NOWOTNY H;BENESOVSKY F.Die dreistoffe (titan,zirkonium,hafnium)-aluminium-siliziu[J].Planseeberichte Fur Pulvermetallurgie,1962(10):65-71. |
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