开展了粉末冶金法制备的20%(体积分数)SiCp/2009Al复合材料坯锭的等温锻造实验,研究了不同变形量对锻件中SiC颗粒的分布以及力学性能的影响.结果表明,等温锻造变形量越大,锻件中的SiC颗粒分布越均匀,锻件强度和塑性越高.对于同一锻件而言,沿锻造轴向上,锻件的应变量呈现中部变形量大、两端变形量小的正态分布趋势,并且中部SiC颗粒分布较均匀,而两端的分布较差;沿锻造径向上,锻件不同部位应变量也存在差异,由此导致SiC颗粒分布均匀性不一致.
参考文献
| [1] | Geiger A L;Walke R J A .The processing and discontinuously reinforced aluminum composites[J].JOM-Journal of the Minerals Metals and Materials Society,1991,8:8-15. |
| [2] | See K S;Dean T A .The effects of the disposition of SiC particles on the forgeability and mechanical properties of cosprayed aluminium-based MMCs[J].Journal of Materials Processing Technology,1997,69:58-67. |
| [3] | 肖伯律,樊建中,左涛,张维玉,徐骏,石力开.塑性变形对15% SiCp/2009 Al复合材料的性能改善[J].稀有金属,2004(01):13-15. |
| [4] | Cavaliere P .Isothermal forging of AA2618 reinforced with 20% of alumina particles[J].Composites Part A:Applied Science and Manufacturing,2004,35:619-629. |
| [5] | Badini C;Vecehia G M La;Fino P et al.Forging of 2124/SiCp composite:preliminary studies of the effects on microstructure and strength[J].Journal of Materials Processing Technology,2001,116:289-297. |
| [6] | K. Euh;S.B. Kang .Effect of rolling on the thermo-physical properties of SiCp/Al composites fabricated by plasma spraying[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):47-52. |
| [7] | 王允禧.锻造与冲压工艺学[M].北京:冶金工业出版社,1994:10. |
| [8] | Lloyd D J .Particle reinforced aluminium and magnesium matrix composites[J].International Materials Reviews,1994,39(01):1-23. |
| [9] | Mckimpson M G;Pohlemnz E L;Thompson S R .Evaluating the mechanical properties of commercial DRA[J].JOM-Journal of the Minerals Metals and Materials Society,1993,1:26-29. |
| [10] | 克莱因 T W;威瑟斯 P J.金属基复合材料导论[M].北京:冶金工业出版社,1996 |
| [11] | Shi N;Arsenault R J .Plastic flow in SiC/Al composites strengthening and ductility[J].Annual Review of Materials Science,1994,24:321-357. |
| [12] | 郭强,严红革,陈振华,张辉.多向锻造技术研究进展[J].材料导报,2007(02):106-108. |
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