| 多区聚焦技术在粉末高温合金微缺陷检测中的应用 |
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| 引用本文： | 梁菁,史亦韦.多区聚焦技术在粉末高温合金微缺陷检测中的应用[J].航空材料学报,2006,26(3):144-147. |
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| 作者姓名： | 梁菁 史亦韦 |
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| 作者单位： | 北京航空材料研究院,北京,100095 |
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| 摘 要： | 针对大厚度粉末高温合金材料中微缺陷的检测难题,采用多区聚焦检测技术,对粉末高温合金微缺陷试样进行了检测灵敏度、信噪比和C扫描成像试验,并与普通单一探头聚焦检测结果进行比较.试验结果表明,多区聚焦技术检测灵敏度高,信噪比好,对于厚度75mm粉末高温合金材料中的微缺陷具有较好的检测效果.
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| 关 键 词： | 粉末高温合金 微缺陷 多区聚焦 超声检测 |
| 文章编号： | 1005-5053(2006)03-0144-04 |
| 修稿时间： | 2006年1月20日 |
Application of Multizone Ultrasonic Inspection for Small Defects in P/M Superalloy |
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| LIANG Jing,SHI Yi-wei.Application of Multizone Ultrasonic Inspection for Small Defects in P/M Superalloy[J].Journal of Aeronautical Materials,2006,26(3):144-147. |
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| Authors: | LIANG Jing SHI Yi-wei |
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| Abstract: | In the purpose of inspecting small defects in P/M superalloy of large thickness,multizone ultrasonic inspection technique was applied.The sensitivity and signal to noise ratio(S/N) of multizone inspection were measured from a series of flat bottom holes,and C-scan images of a forged P/M superalloy sample were also provided.It was showed that multizone inspection greatly improved the sensitivity and S/N comparing with single zone focused inspection. |
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| Keywords: | P/M small defect multizone inspection ultrasonic inspection |
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