SiCp/Al复合材料的制备及其性能研究
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摘要
在不同的SiC含量、球磨时间和复合材料颗粒处理工艺的情况下,基于粉末冶金法制备了8种SiCp/Al复合材料试件,分析了不同的SiC含量、球磨时间及复合材料颗粒处理工艺对试件抗拉强度和维氏硬度的影响,观察了试件的拉伸断口形貌并测试了拔出的SiC颗粒表面能谱。结果表明:随着SiC含量和球磨时间的增加,试件的抗拉强度和维氏硬度明显增大;颗粒复合处理能够改善复合粉体的成型性,还能使复合材料具有更高的强度;SiC和Al基体的结合强度高,试件断裂时两者之间的界面呈现塑性撕裂的状态。
In the proportion of SiC, ball-milling processing time and particles composite processing technology, 8 SiCp/Al composite specimens are prepared by powder metallurgy method. Based on the prepared specimens, effects of proportion of SiC, ball-milling processing time and particles composite processing technology on tensile strength and Vickers hardness are analyzed. Fracture appearance of the specimens are observed and surface energy spectrum of the SiC particles are measured. The results show that tensile strength and Vickers hardness of the specimens are enhance with the increase of proportion of SiC and ball-milling processing time. Particles composite processing technology can not only improve molding ability of the mixed power, but also strengthen the enhancement effects of SiC on Al basal body. Bonding strength of SiC particle and Al basal body is high, and interface between SiC particles and Al basal body is plastic teared.
In the proportion of SiC, ball-milling processing time and particles composite processing technology, 8 SiCp/Al composite specimens are prepared by powder metallurgy method. Based on the prepared specimens, effects of proportion of SiC, ball-milling processing time and particles composite processing technology on tensile strength and Vickers hardness are analyzed. Fracture appearance of the specimens are observed and surface energy spectrum of the SiC particles are measured. The results show that tensile strength and Vickers hardness of the specimens are enhance with the increase of proportion of SiC and ball-milling processing time. Particles composite processing technology can not only improve molding ability of the mixed power, but also strengthen the enhancement effects of SiC on Al basal body. Bonding strength of SiC particle and Al basal body is high, and interface between SiC particles and Al basal body is plastic teared.
引文
[1] KADIVAR M A,AKBARI J,YOUSEFI R,et al.Investigating the effects of vibration method on ultrasonic-assisted drilling of Al/SiCp metal matrix composites[J].Robotics and Computer-Integrated Manufacturing,2014,30(3):344-350.
[2] ZHOU L,WANG Y,MA Z Y,et al.Finite element and experimental studies of the formation mechanism of edge defects during machining of SiCp/Al[J].International Journal of Machine Tools & Manufacture,2014,84(9):9-16.
[3] EL-SABBAGH A M,SOLIMAN M,TAHA M A,et al.Effect of rolling and heat treatment on tensile behaviour of wrought Al-SiCp composites prepared by stir-casting[J].Journal of Materials Processing Technology,2013,213(10):1669-1681.
[4] ZHANG Q,WANG Q Z,XIAO B L,et al.Phases and elemental distributions in SiCp/Al-Cu-Mg composite fabricated by powder metallurgy[J].Acta Metallurgica Sinica,2012,48(2):135-141.
[5] 樊建中,肖伯律,左涛,等.热处理对SiCp/Al复合材料强度和塑性的影响[J].中国有色金属学报,2006,16(2):228-234.
[6] 罗嗣俊,陈康华,祝昌军,等.热处理对SiCp/Al复合材料拉伸变形行为的影响[J].粉末冶金材料科学与工程,2009,14(4):265-269.
[7] ZHOU P W,ZHONG Y B,WANG H,et al.Behavior of Fe/nano-Si particles composite electrodeposition with a vertical electrode system in a static parallel magnetic field[J].Electrochimica Acta,2013,111(11):126-135.
[2] ZHOU L,WANG Y,MA Z Y,et al.Finite element and experimental studies of the formation mechanism of edge defects during machining of SiCp/Al[J].International Journal of Machine Tools & Manufacture,2014,84(9):9-16.
[3] EL-SABBAGH A M,SOLIMAN M,TAHA M A,et al.Effect of rolling and heat treatment on tensile behaviour of wrought Al-SiCp composites prepared by stir-casting[J].Journal of Materials Processing Technology,2013,213(10):1669-1681.
[4] ZHANG Q,WANG Q Z,XIAO B L,et al.Phases and elemental distributions in SiCp/Al-Cu-Mg composite fabricated by powder metallurgy[J].Acta Metallurgica Sinica,2012,48(2):135-141.
[5] 樊建中,肖伯律,左涛,等.热处理对SiCp/Al复合材料强度和塑性的影响[J].中国有色金属学报,2006,16(2):228-234.
[6] 罗嗣俊,陈康华,祝昌军,等.热处理对SiCp/Al复合材料拉伸变形行为的影响[J].粉末冶金材料科学与工程,2009,14(4):265-269.
[7] ZHOU P W,ZHONG Y B,WANG H,et al.Behavior of Fe/nano-Si particles composite electrodeposition with a vertical electrode system in a static parallel magnetic field[J].Electrochimica Acta,2013,111(11):126-135.