ELECTROMAGNETIC ACOUSTIC RESONANCE OF SiC_f/Ti COMPOSITES AT ELEVATED TEMPERATURES

机译：SiC_f / Ti复合材料在高温下的电磁声共振

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The electromagnetic-acoustic-transduction system developed here made it possible to perform RUS measurement at elevated temperatures. This method has no temperature limit as long as material remains conductive. The resonance frequency decreased with temperature. The decremental rate showed good correspondence with that of Ti-6Al-4V after considering the volume fraction of the matrix. Evolution of the attenuation coefficient with increasing temperature was interpreted as the decrease of dislocation density followed by increase of the matrix viscosity.

机译：在此开发的电磁声换能系统使在高温下进行RUS测量成为可能。只要材料保持导电，该方法就没有温度限制。共振频率随温度降低。考虑到基体的体积分数，其下降速率与Ti-6Al-4V表现出良好的对应关系。衰减系数随温度的升高而演变为位错密度降低，然后基体粘度升高。

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来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.1337-1342|共6页
会议地点 SnowbirdUT(US)
作者
H. Ogi; G. Shimoike; M. Hirao; K. Takashima; H. Ohtani; H. Ledbetter;
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作者单位

Graduate School of Engineering Science, Osaka University, Toyonaka Osaka 560-8531, Japan;

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原文格式 PDF
正文语种 eng
中图分类无损探伤仪器;
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2. Elastic Properties of a Crossply SiC_f/Ti Composite at Elevated Temperatures [J] . HIROTSUGU OGI, HASSEL LEDBETTER, KAZUKI TAKASHIMA Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2001,第2期

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3. SUBCRITICAL CRACK GROWTH IN CVI SiC_f/SiC COMPOSITES AT ELEVATED TEMPERATURES: DYNAMIC CRACK GROWTH MODEL [J] . C.H.Henager Jr, R.G.Hoagland Acta Materialia . 2001,第18期

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5. ELECTROMAGNETIC ACOUSTIC RESONANCE OF SiC_f/Ti COMPOSITES AT ELEVATED TEMPERATURES [C] . H. Ogi, G. Shimoike, M. Hirao, Annual Symposium on Quantitative Nondestructive Evaluation . 1999

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ELECTROMAGNETIC ACOUSTIC RESONANCE OF SiC_f/Ti COMPOSITES AT ELEVATED TEMPERATURES

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