Nondestructive Evaluation of Creep Damage Using Leaky Surface Acoustic Wave Technique
Creep has been one of the most concerned matters on high temperature components of thermal power plants, petrochemical plants, oil refineries and so on. In present study, leaky surface acoustic wave (LSAW) has been applied to detect and evaluate the creep. LSAW signals with broad-band frequency gene...
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| Veröffentlicht in: | JSME International Journal Series A Solid Mechanics and Material Engineering 2002, Vol.45(1), pp.39-45 |
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| container_title | JSME International Journal Series A Solid Mechanics and Material Engineering |
| container_volume | 45 |
| creator | YOKONO, Yoshikazu NAGANO, Yoshihiro MUKAI, Kazuhiro IMANAKA, Takuichi |
| description | Creep has been one of the most concerned matters on high temperature components of thermal power plants, petrochemical plants, oil refineries and so on. In present study, leaky surface acoustic wave (LSAW) has been applied to detect and evaluate the creep. LSAW signals with broad-band frequency generated by large-aperture-angle line-focus transducer were analyzed. The feature parameters of LSAW pulse both in time domain and in frequency domain such as amplitude of signal and ultrasonic power spectrum vary with creep process. Particularly high frequency components of LSAW attenuate through the mechanism of sound wave scattering by creep voids and cavities. Consequently ultrasonic spectroscopy technique can be expected to be available for deducing the state of deterioration in material quantitatively on the basis of correlation between microstructure in long-term operation at high temperature and ultrasonic propagation characteristics theoretically and practically. |
| doi_str_mv | 10.1299/jsmea.45.39 |
| format | Article |
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In present study, leaky surface acoustic wave (LSAW) has been applied to detect and evaluate the creep. LSAW signals with broad-band frequency generated by large-aperture-angle line-focus transducer were analyzed. The feature parameters of LSAW pulse both in time domain and in frequency domain such as amplitude of signal and ultrasonic power spectrum vary with creep process. Particularly high frequency components of LSAW attenuate through the mechanism of sound wave scattering by creep voids and cavities. 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Standards</subject><subject>Applied sciences</subject><subject>Creep</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Heat Affected Zone (HAZ)</subject><subject>Leaky Surface Acoustic Wave (LSAW)</subject><subject>Materials science</subject><subject>Materials testing</subject><subject>Metals. Metallurgy</subject><subject>Nondestructive Evaluation (NDE)</subject><subject>Nondestructive testing</subject><subject>Nondestructive testing: ultrasonic testing, photoacoustic testing</subject><subject>Physics</subject><subject>Testing for defects</subject><subject>Ultrasonic</subject><subject>Welds</subject><issn>1344-7912</issn><issn>1347-5363</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNo9kE1rwkAQhkNpoWI99Q8slB5js5_J3ir2E6Q9VOlxmWwmujYmdjcR_PdNVYRhZmCemZd3ouiWJmPKtH5Yhw3CWMgx1xfRgHKRxpIrfnnoRZxqyq6jUQguTxImMsFpMogWH01dYGh9Z1u3Q_K8g6qD1jU1aUoy9Yhb8gQbWCJZBFcvyQzhZ0--Ol-CRTKxTRdaZ8k39MtztKva_XZ4E12VUAUcneowWrw8z6dv8ezz9X06mcVLrlUbKwkA0gqFnAq0Stok47lkikmheU4LxZkqQApRlDLLdYaqzMucJqhSqXPNh9Hd8e7WN71saM266XzdSxoqVNpHkv1T9ycKgoWq9FBbF8zWuw34vaH9kzLKWM89Hrl1aHvDZwB877BCc3iwEdLQY-L6PLIr8AZr_gc0mHeI</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>YOKONO, Yoshikazu</creator><creator>NAGANO, Yoshihiro</creator><creator>MUKAI, Kazuhiro</creator><creator>IMANAKA, Takuichi</creator><general>The Japan Society of Mechanical Engineers</general><general>Japan Society of Mechanical Engineers</general><general>Japan Science and Technology Agency</general><scope>IQODW</scope></search><sort><creationdate>2002</creationdate><title>Nondestructive Evaluation of Creep Damage Using Leaky Surface Acoustic Wave Technique</title><author>YOKONO, Yoshikazu ; NAGANO, Yoshihiro ; MUKAI, Kazuhiro ; IMANAKA, Takuichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g396t-65aaa5c46e314ec65c083b52625493b1d6326da544df58b98e6fbfb10e6759b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Acoustical measurements and instrumentation</topic><topic>Acoustics</topic><topic>Analysing. Testing. Standards</topic><topic>Applied sciences</topic><topic>Creep</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Heat Affected Zone (HAZ)</topic><topic>Leaky Surface Acoustic Wave (LSAW)</topic><topic>Materials science</topic><topic>Materials testing</topic><topic>Metals. Metallurgy</topic><topic>Nondestructive Evaluation (NDE)</topic><topic>Nondestructive testing</topic><topic>Nondestructive testing: ultrasonic testing, photoacoustic testing</topic><topic>Physics</topic><topic>Testing for defects</topic><topic>Ultrasonic</topic><topic>Welds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>YOKONO, Yoshikazu</creatorcontrib><creatorcontrib>NAGANO, Yoshihiro</creatorcontrib><creatorcontrib>MUKAI, Kazuhiro</creatorcontrib><creatorcontrib>IMANAKA, Takuichi</creatorcontrib><collection>Pascal-Francis</collection><jtitle>JSME International Journal Series A Solid Mechanics and Material Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YOKONO, Yoshikazu</au><au>NAGANO, Yoshihiro</au><au>MUKAI, Kazuhiro</au><au>IMANAKA, Takuichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nondestructive Evaluation of Creep Damage Using Leaky Surface Acoustic Wave Technique</atitle><jtitle>JSME International Journal Series A Solid Mechanics and Material Engineering</jtitle><date>2002</date><risdate>2002</risdate><volume>45</volume><issue>1</issue><spage>39</spage><epage>45</epage><pages>39-45</pages><issn>1344-7912</issn><eissn>1347-5363</eissn><abstract>Creep has been one of the most concerned matters on high temperature components of thermal power plants, petrochemical plants, oil refineries and so on. In present study, leaky surface acoustic wave (LSAW) has been applied to detect and evaluate the creep. LSAW signals with broad-band frequency generated by large-aperture-angle line-focus transducer were analyzed. The feature parameters of LSAW pulse both in time domain and in frequency domain such as amplitude of signal and ultrasonic power spectrum vary with creep process. Particularly high frequency components of LSAW attenuate through the mechanism of sound wave scattering by creep voids and cavities. Consequently ultrasonic spectroscopy technique can be expected to be available for deducing the state of deterioration in material quantitatively on the basis of correlation between microstructure in long-term operation at high temperature and ultrasonic propagation characteristics theoretically and practically.</abstract><cop>Tokyo</cop><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/jsmea.45.39</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Acoustical measurements and instrumentation Acoustics Analysing. Testing. Standards Applied sciences Creep Cross-disciplinary physics: materials science rheology Exact sciences and technology Fundamental areas of phenomenology (including applications) Heat Affected Zone (HAZ) Leaky Surface Acoustic Wave (LSAW) Materials science Materials testing Metals. Metallurgy Nondestructive Evaluation (NDE) Nondestructive testing Nondestructive testing: ultrasonic testing, photoacoustic testing Physics Testing for defects Ultrasonic Welds |
| title | Nondestructive Evaluation of Creep Damage Using Leaky Surface Acoustic Wave Technique |
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