利用分离式Hopkinson压杆和MTS通用材料试验机研究了SiCp/6151Al颗粒增强复合材料在不同应变率下的变形行为和增强颗粒的尺寸对复合材料微结构及变形行为的影响.结果表明:对于在不同应变率下的SiCp/6151Al复合材料,增强颗粒尺寸小的流动应力高于增强颗粒尺寸大的流动应力.根据位错强化理论中的Hall-Petch关系对这个结果进行了解释.首次在实验上观测到增强颗粒对复合材料微损伤-微带形成的影响,并根据微带(microband)形成的双位错墙理论(donble dislocationwalls),分析了增强颗粒对复合材料微带损伤及力学性能影响的微结构效应.
参考文献
| [1] | T.W.Clyne,P.J.Withers,An Introduction to Metal Matrix Composites (London,Cambridge University Press,1993) p.5～38 |
| [2] | WANG Ying(王莺),ZHOU Yuanxin(周元鑫),XIA Yuanxing(夏源明),The Experimental Research ofthe Purching Mechanical Properties of SiC Particles Reinforced Alnminum Matrix Composite(SiC颗粒增强铝基复合材料冲击拉伸力学性能的实验研究),Mater.Sci.& Tech.(材料科学与工艺),6(3),1(1998) |
| [3] | Y.ZHOU,Y.XIA,Experimental Study of the Rate-Sensitivity of SiCP/Al Composite and the Establishment of a Dynamic Constitutive Equation,Comp.Sci.& Tech.,60,403(2000) |
| [4] | ZHANG Guoding(张国定),CHEN Yu(陈煜),LIU Cheng(刘澄),The Heterogeneity of MechanicalProperties in the Microzone of Metal Matrix Composites(金属基复合材料微区力学性能的不均匀现象),Chinese Journal of Materials Research(材料研究学报),11(1),21(1997) |
| [5] | HUANG Zanjun(黄赞军),YANG bin(杨滨)CUI Hua(崔华),DUAN Xianjin(段先进),ZHANG jishan(张济山),Fabrication and Microstructure of Al Matrix Composite Strengthened by In-Situ Alloying and InSitu Particulate(原位铝基复合材料的制备及微观组织),Chinese Journal of Materials Research(材料研究学报),15(4),432(2001) |
| [6] | Z.LING,Deformation Behavior and Microstructure Effect of 2124A1/SiCp Composite,J.Comp.Mater.,34(2),101(2000) |
| [7] | D.J.Lloyd,Particle Reinforced Aluminum and Magnesium Matrix Composites,Int.Mater.Rev.,39,1(1994) |
| [8] | M.A.Meyersand,K.K.Chawla,Mechanical Metallurgy: Principles and Applications (Prentice-Hall,Englewood Cliffs,New Jersey,1984) p.136 |
| [9] | L.H.DAI,Z.LING,Y.L.BAI,A Strain Gradient-Strengthening Law for Particle Reinforced Metal Matrix Composites,Scripta Material,41(3),245(1999) |
| [10] | L.H.DAI,Z.LING,Y.L.BAI,Particle Size Effects on the Overall Mechanical Behavior of Metal Matrix Composites.ICCE/6,147(1999) |
| [11] | J.C.Huang,G.T.Gray,Microband Formation in Shock-Loaded and Quasi-Statically Deformed Metals,Acta Metall.,37(12),3335(1989) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%