SiC/2009Al复合材料划伤缺陷疲劳性能研究
Fatigue Properties of SiC/2009Al Composites with Scratch Defects
摘要:
以SiC/2009Al复合材料为研究对象，研究了划伤缺陷(划伤深度0.15 mm、0.25 mm及0.40 mm)对SiC/2009Al复合材料疲劳性能的影响。结果表明：相比无缺陷的光滑试样，划伤缺陷试样疲劳性能下降明显；随着划伤深度尺寸的增加，疲劳缺口敏感性增大；与大多数金属材料一样，SiC/2009Al复合材料理论应力集中系数K
t与疲劳缺口系数K
f呈线性关系。
Abstract:
Taking SiC/2009Al matrix composites as the research object, the effects of scratch defects (scratch depth 0.15 mm, 0.25 mm and 0.40 mm) on fatigue properties of SiC/2009Al composites were studied. The results show that compared with the smooth specimen without defect, the fatigue properties of the scratched specimen degraded obviously. The fatigue notch sensitivity increases with the increase of the scratch depth. Similar to most metal materials, the relation between the stress concentration factor Kt and the fatigue notch factor Kf is linear for SiC/2009Al composites.
参考文献
|
[1]
|
刘彦强, 樊建中, 桑吉梅, 等. 粉末冶金法制备金属基复合材料的研究及应用[J]. 材料导报, 2010, 24(23): 18-23.
|
|
[2]
|
郑喜军, 米国发. 碳化硅颗粒增强铝基复合材料的研究现状及发展趋势[J]. 加工工艺, 2011, 40(12): 92-96.
|
|
[3]
|
孔亚茹, 郭强, 张荻. 颗粒增强铝基复合材料界面性能的研究[J]. 材料导报, 2015, 29(9): 34-43+49.
|
|
[4]
|
郝世明, 谢敬佩. SiC颗粒增强铝基复合材料的制备工艺和性能研究[J]. 粉末冶金工业, 2014, 24(5): 38-43.
|
|
[5]
|
胡启耀. 颗粒增强铝基复合材料压铸成形的研究[D]: [博士学位论文]. 广州: 华南理工大学, 2017.
|
|
[6]
|
Ye, T.K., Xu, Y.X. and Ren, J. (2019) Effects of SiC Particle Size on Mechanical Properties of SiC Particle Reinforced Aluminum Metal Matrix Composite. Materials Science & Engineering A, 753, 146-155. [Google Scholar] [CrossRef]
|
|
[7]
|
顾文标, 喻溅鉴, 邹静, 等. 直升机金属结构缺陷容限验证技术研究[J]. 直升机技术, 2013(1): 20-25.
|
|
[8]
|
亚伯•斯海维著.结构与材料的疲劳[M]. 吴学仁, 等, 译. 北京: 航空工业出版社, 2014: 138-141.
|
|
[9]
|
张思倩, 李述军, 郝玉琳, 等. Ti-24Nb-4Zr-8Sn合金疲劳缺口敏感性[J]. 中国有色金属学报, 2010, 20(S1): 518-522.
|
|
[10]
|
胡本润, 刘建中, 陈剑峰. 疲劳缺口系数Kf与理论应力集中系数Kt之间的关系[J]. 材料工程, 2007(7): 70-73.
|