In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation

Liu Liu; Naji S. Husseini; Christopher J. Torbet; Divine P. Kumah; Roy Clarke; Tresa M. Pollock; J. Wayne Jones

doi:10.1115/1.2840966

In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation

Liu Liu^*, Naji S. Husseini, Christopher J. Torbet, Divine P. Kumah, Roy Clarke, Tresa M. Pollock, J. Wayne Jones

^*此作品的通讯作者

University of Michigan, Ann Arbor

科研成果: 期刊稿件 › 文章 › 同行评审

23 引用（Scopus）

摘要

A novel X-ray synchrotron radiation approach is described for real-time imaging of the initiation and growth of fatigue cracks during ultrasonic fatigue (f=20 kHz). We report here on new insights on single crystal nickel-base superalloys gained with this approach. A portable ultrasonic fatigue instrument has been designed that can be installed at a high-brilliance X-ray beamline. With a load line and fatigue specimen configuration, this instrument produces stable fatigue crack propagation for specimens as thin as 150 μm. The in situ cyclic loading/imaging system has been used initially to image real-time crystallographic fatigue and crack growth under positive mean axial stress in the turbine blade alloy CMSX-4.

源语言	英语
页（从-至）	210081-210086
页数	6
期刊	Journal of Engineering Materials and Technology
卷	130
期	2
DOI	https://doi.org/10.1115/1.2840966
出版状态	已出版 - 4月 2008
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Liu, L., Husseini, N. S., Torbet, C. J., Kumah, D. P., Clarke, R., Pollock, T. M., & Wayne Jones, J. (2008). In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation. Journal of Engineering Materials and Technology, 130(2), 210081-210086. https://doi.org/10.1115/1.2840966

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abstract = "A novel X-ray synchrotron radiation approach is described for real-time imaging of the initiation and growth of fatigue cracks during ultrasonic fatigue (f=20 kHz). We report here on new insights on single crystal nickel-base superalloys gained with this approach. A portable ultrasonic fatigue instrument has been designed that can be installed at a high-brilliance X-ray beamline. With a load line and fatigue specimen configuration, this instrument produces stable fatigue crack propagation for specimens as thin as 150 μm. The in situ cyclic loading/imaging system has been used initially to image real-time crystallographic fatigue and crack growth under positive mean axial stress in the turbine blade alloy CMSX-4.",

author = "Liu Liu and Husseini, {Naji S.} and Torbet, {Christopher J.} and Kumah, {Divine P.} and Roy Clarke and Pollock, {Tresa M.} and {Wayne Jones}, J.",

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AU - Kumah, Divine P.

AU - Clarke, Roy

AU - Pollock, Tresa M.

AU - Wayne Jones, J.

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N2 - A novel X-ray synchrotron radiation approach is described for real-time imaging of the initiation and growth of fatigue cracks during ultrasonic fatigue (f=20 kHz). We report here on new insights on single crystal nickel-base superalloys gained with this approach. A portable ultrasonic fatigue instrument has been designed that can be installed at a high-brilliance X-ray beamline. With a load line and fatigue specimen configuration, this instrument produces stable fatigue crack propagation for specimens as thin as 150 μm. The in situ cyclic loading/imaging system has been used initially to image real-time crystallographic fatigue and crack growth under positive mean axial stress in the turbine blade alloy CMSX-4.

AB - A novel X-ray synchrotron radiation approach is described for real-time imaging of the initiation and growth of fatigue cracks during ultrasonic fatigue (f=20 kHz). We report here on new insights on single crystal nickel-base superalloys gained with this approach. A portable ultrasonic fatigue instrument has been designed that can be installed at a high-brilliance X-ray beamline. With a load line and fatigue specimen configuration, this instrument produces stable fatigue crack propagation for specimens as thin as 150 μm. The in situ cyclic loading/imaging system has been used initially to image real-time crystallographic fatigue and crack growth under positive mean axial stress in the turbine blade alloy CMSX-4.

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In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation

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