ACOUSTIC MICROSCOPY WALL THICKNESS MEASUREMENTS ON NICKEL BASED SUPERALLOY GAS TURBINE BLADES

机译：镍基高温合金燃气轮机叶片的声学显微壁厚测量

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Wall thickness measurements have been carried out on two single crystal nickel-based superalloy components, a specially cast testpiece and a gas turbine blade. The measurements on the testpiece yielded an optimized set of elastic constants for the superalloy. Mechanically and ultrasonically measured thicknesses agree to within 2% for the testpiece and 10% for the blade. Echo amplitude variations observed are in reasonable accordance with calculation. The simple analysis of the pulse transit time based on the phase velocity breaks down at the leading and trailing edges of the blade where the curvature is largest. A more detailed analysis taking into account this curvature is underway.

机译：壁厚测量是在两个单晶镍基高温合金部件，一个特殊铸造的测试件和一个燃气轮机叶片上进行的。在试件上进行的测量得出了超级合金的一组优化的弹性常数。机械和超声测得的厚度对于测试件而言应在2％以内，对于刀片而言应在10％以内。观察到的回波振幅变化在合理范围内符合计算。基于相速度的脉冲传播时间的简单分析在曲率最大的叶片的前缘和后缘分解。考虑到该曲率的更详细的分析正在进行中。

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来源
《Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US)》|1998年|P.2001-2007|共7页
会议地点 SnowbirdUT(US)
作者
G. M. Amulele; A. G. Every; S. C. Yates;
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Department of Physics, University of the Witwatersrand, PO Wits 2050, Johannesburg, South Africa;

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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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1. Acoustic microscopy wall thickness measurements on nickel based superalloy gas turbine blades [J] . SA Mechanical Engineer . 2001,第2期

机译：镍基高温合金燃气轮机叶片的声学显微镜壁厚测量
2. FATIGUE STRENGTH AND LIFE PREDICTION OF A MAR-M247 NICKEL-BASE SUPERALLOY GAS TURBINE BLADE WITH MULTIPLE CARBIDE INCLUSIONS [J] . Lin H., Geng H. P., Zhang L. Y. Y., Strength of Materials . 2019,第1期

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3. Fatigue Strength and Life Prediction of a MAR-M247 Nickel-Base Superalloy Gas Turbine Blade with Multiple Carbide Inclusions [J] . H. Lin, H. P. Geng, Y. Y. Zhang, Проблемы прочностиПроблемы прочности: на рус．укр．и анг．языках . 2019,第1a457期

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4. ACOUSTIC MICROSCOPY WALL THICKNESS MEASUREMENTS ON NICKEL BASED SUPERALLOY GAS TURBINE BLADES [C] . G. M. Amulele, A. G. Every, S. C. Yates Annual Symposium on Quantitative Nondestructive Evaluation . 1999

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5. Characterization of yttrium aluminide diffusion coatings on nickel-base superalloys for aero gas turbine engine applications. [D] . Chung, Evelyn Wan Wah. 1996

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ACOUSTIC MICROSCOPY WALL THICKNESS MEASUREMENTS ON NICKEL BASED SUPERALLOY GAS TURBINE BLADES

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