孔结构参数对通孔多孔铝合金超声衰减性能的影响
Effect of Porous Structural Parameters on Ultrasonic Attenuation Capacity of Porous Al Alloy with High Specific Strength
摘 要
研究了通孔多孔铝合金的超声衰减性能.结果表明：通孔多孔铝合金在1～10MHz范围内是一种具有良好超声衰减性能的轻质材料,超声衰减系数α随孔径d的减小、孔隙率Ps减小和比表面积Sv的增加而增大.
超声衰减性能
孔结构参数
porous Al alloy
ultrasonic attenuation capacity
porous structural parameter
Abstract
Ultrasonic attenuation capacity of porous Al alloy with high specific strength was studied.That alloy is a light material with good ultrasonic attenuation capacity between 1-10MHz.Ultrasonic attenuation coefficient α of porous Al alloy increases with decreasing pore diameter d,with decreasing porosity Ps and with increasing specific surface Sv.
中图分类号 TG146.2
所属栏目
基金项目 国家自然科学基金重点资助项目(50231010;50471031;90205005;50081002)
收稿日期 2004/12/27
修改稿日期 2005/4/24
网络出版日期
作者单位点击查看
备注汤小东(1979-),男,江苏江都人,硕士研究生.
引用该论文: TANG Xiao-dong,HE De-ping,ZHANG Wei-kai. Effect of Porous Structural Parameters on Ultrasonic Attenuation Capacity of Porous Al Alloy with High Specific Strength[J]. Materials for mechancial engineering, 2006, 30(4): 48～50
汤小东,何德坪,张伟开. 孔结构参数对通孔多孔铝合金超声衰减性能的影响[J]. 机械工程材料, 2006, 30(4): 48～50
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参考文献
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【3】Ashby M F,Lu T J.Metal foams:a survey[J].Science in China(ser B),2003,46(6):521-532.
【4】Yang Donghui,He Deping.Porosity of porous Al alloys[J].Science in China (ser B),2001,44(4):411-418.
【5】Zou Yi,He Deping,Jiang Jiaqiao.New type of spherical pore Al alloy foam with low porosity and high strength[J].Science in China(ser B) ,2004,47(5):407-413.
【6】余兴泉,何德坪.泡沫金属机械阻尼性能研究[J].机械工程材料,1994,18(2):26-28,32.
【7】何德坪,余兴泉.孔结构对多孔泡沫AL非线性阻尼性能的影响[J].材料研究学报,1997,11(1):101-103.
【8】刘长松,韩福生,朱震刚.泡沫铝的低频内耗特征研究[J].物理学报,1997,46(8):1585-1592.
【9】Banhart J,Baumeister J,Weber M.Damping properties of aluminium foams[J].Materials Science and Engineering,1996,A205:221-228.
【10】何德坪,王永进,陈策,等.多孔铝合金及其制备方法[P].中国专利,02112601.1,2002-01-28.
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