Ultrasonic testing of reinforcement content in SiC particle reinforced aluminum matrix composites
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摘要: 通过理论分析建立了一种基于纵波声速评价SiC颗粒增强铝基（SiCp/Al）复合材料中增强体含量及孔隙率的超声检测模型，随后采用粉末冶金工艺制备了增强体体积分数分别为10%，15%，20%，25%，30%的SiCp/Al复合材料试样，实测纵波声速、增强体含量及孔隙率后建立了三者之间的关系曲线，最后利用实测关系曲线对标称体积分数为20%的SiCp/Al复合材料试样中的增强体含量进行了推算。 试验结果表明，实测关系曲线与模型计算得到的理论预测曲线具有良好的一致性，试样增强体含量超声检测的相对误差为5. 2%，证明了该方法的可行性。该方法在检测增强体含量的同时考虑了孔隙率的影响，为先进金属基复合材料的无损检测提供了一种新思路。
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关键词:
- 超声检测 /
- SiCp/Al复合材料 /
- 增强体含量 /
- 孔隙率
Abstract: An ultrasonic testing model for the volume fraction of SiC and porosity in SiC particle reinforced aluminum matrix(SiCp/Al) composite was established through theoretical analysis, which was based on the ultrasonic velocity of longitudinal wave. SiCp/Al composite samples with SiC volume fraction of 10%, 15%, 20%, 25%, 30% were prepared by powder metallurgy process respectively. The velocity, SiC volume fraction and porosity of those samples were measured, then an experimental relation curve between measured velocity, SiC volume fraction and porosity was established. And finally, the SiC volume fraction of another SiCp/Al composite sample with a nominal volume fraction of 20% was calculated using the experimental relation curve. The results indicate that the experimental relation curve is in good agreement with the theoretical prediction curve calculated by the model, the relative error of the SiC volume fraction evaluated by ultrasonic method is 5.2%, which proves the feasibility of this method. The research considers the effect of porosity while detecting the SiC volume fraction, which provides a new idea for nondestructive evaluation of metal matrix composites.-
Keywords:
- ultrasonic testing /
- SiCp/Al composite /
- reinforcement fraction /
- porosity
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[1] 何晓磊, 李沛勇,李伟.固溶处理对一种2xxx/SiCp铝基复合材料组织和性能的影响[J]. 航空材料学报,2010,30(4):21-25. [2] 李沛勇, 戴圣龙. 高阻尼铝基复合材料的研究动向[J]. 航空材料学报,2000,20(3):164-171. [3] 金鹏, 刘越,李曙,等. 颗粒增强铝基复合材料在航空航天领域的应用[J]. 材料导报,2009,23(11):24-27. [4] 樊建中, 石力开. 颗粒增强铝基复合材料研究与应用发展[J]. 宇航材料工艺,2012,42(1):1-7. [5] 边心宇, 樊建中, 马自力,等. 颗粒分布不均匀型缺陷对颗粒增强铝基复合材料性能的影响[J]. 稀有金属,2010,34(3):357-362. [6] 王唱舟, 周丽,王洋,等.数值模拟SiCp/Al复合材料的微观结构对力学性能的影响[J].材料科学与工程学报,2015,33(1):122-126. [7] LIAW P K,SHANNON R E,CLARK W G,et al.Nondestructive characterization of material properties of metal-matrix composites[J].Materials Chemistry and Physics,1995,39(3):220-228.
[8] 孙广开, 周正干.SiCp/Al复合材料增强体分布均匀性超声成像方法[J].北京航空航天大学学报,2017,43(3):417-423. [9] 叶想平, 李英雷,翁继东,等. 颗粒增强金属基复合材料的强化机理研究现状[J].材料工程,2018,46(12):28-37. [10] 徐炜新, 谢崇津,杨伟宁,等.测定显微组织中第二相颗粒分布均匀性的定量金相法的介绍[J].理化检验(物理分册),2009,45(8):491-494. [11] 周正干, 高翌飞.金属基复合材料超声无损检测及评价技术的发展[J].航空制造技术,2009,52(4):47-50. [12] 吴斌斌, 邬冠华. 铝基复合材料无损检测研究进展[J]. 无损探伤,2012,36(1):1-4,31. [13] GVR C H,OGEL B.Non-destructive microstructural characterization of aluminium matrix composites by ultrasonic techniques[J].Materials Characterization,2001,47(3):227-233.
[14] 魏勤, 尤建飞,彭如海,等. 超声C扫描成像系统在铝基复合材料无损检测中的应用[J]. 华东船舶工业学院学报,2000,14(2):31-34. [15] 高翌飞, 周正干,何方成.基于TIRP法的铝基复合材料均匀性检测[J].北京航空航天大学学报,2009,35(8):1031-1034. [16] BINDUMADHAVAN P N, WAH H K, PRABHAKAR O. Assessment of particle-matrix debonding in particulate metal matrix composites using ultrasonic velocity measurements[J].Materials Science and Engineering:A,2002,323(1):42-51.
[17] PODYMOVA N B, KARABUTOV A A. Combined effects of reinforcement fraction and porosity on ultrasonic velocity in SiC particulate aluminum alloy matrix composites[J].Composites Part B:Engineering, 2017, 113:138-143.
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