| Project/Area Number |
24656080
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
UCHIMOTO Tetsuya 東北大学, 流体科学研究所, 准教授 (70313038)
MIKI Hiroyuki 東北大学, 学際科学フロンティア研究所, 准教授 (80325943)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 高温計測 / 非破壊評価 / 計測システム / プロセス / 電磁超音波試験 |
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| Research Abstract |
Understanding of the metal solidification is a key issue to increase the reliability of the metal processing, and the sensors for monitoring such process at high temperature is highly required. EMAT (Electromagnetic Acoustic Transducer) provides non-contact measurements, and it is suitable for measurements in high temperature. The main factor to limit working temperature of this EMAT is the Curie temperature of iron yoke. In this study we proposes to use air-cored coil as the bias magnetic source of EMAT. The pulsed-echo waveforms of an aluminum alloy specimen are measured by the present EMAT in high temperatures and shear wave velocity of the specimen at each temperature is evaluated. Back-echo signals can be identified at the range of temperature from RT to 400 degrees C.
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