使用不同固溶温度对粉末冶金工艺制备的15%SiCp/2009Al复合材料进行了处理,经过自然时效后进行了拉伸试验.结果表明:复合材料强度与塑性均随着固溶温度的提高而增加;挤压态的复合材料强度与基体合金基本相同.动态拉伸和断口形貌观察表明:挤压态的复合材料断裂形式为界面和基体中形成孔洞并相互连接导致试样断裂;而热处理后界面附近的基体中形成孔洞以及颗粒开裂并向基体中扩展导致试样断裂.
参考文献
| [1] | Hasson D F;Crowe C R.Strength of metals and alloys[A].Pergamon Press ,Oxford ,UK,1985:1515. |
| [2] | Fishman S G.Role of interfaces in material damping[J].ASM International Materials Park OH,1985:33. |
| [3] | Srivatsan T S;Sudarshan T S.Rapid solidification technology: an engineers guide[M].Technomic Publishing Company,Lancaster,PA,1988:23. |
| [4] | Srivatsan TS.;Al-Hajri M.;Smith C.;Petraroli M. .The tensile response and fracture behavior of 2009 aluminum alloy metal matrix composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):91-100. |
| [5] | 肖伯律,毕敬,赵明久,马宗义.SiCp尺寸对铝基复合材料拉伸性能和断裂机制的影响[J].金属学报,2002(09):1006-1008. |
| [6] | THOMAS M P;King J E .Improvement of the mechanical properties of 2124/SiCp MMC plate by optimization of the solution treatment[J].Composites Science and Technology,1996,56:1141-1147. |
| [7] | Kim WJ;Shin DH;Hong SH;Yeon JH .Deformation behavior of powder-metallurgy processed high-strain-rate superplastic 20% SiC sub p /2124 Al composite in a wide range of temperature[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(1/2):142-151. |
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