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

^*Corresponding author for this work

University of Michigan, Ann Arbor

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

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.

Original language	English
Pages (from-to)	210081-210086
Number of pages	6
Journal	Journal of Engineering Materials and Technology
Volume	130
Issue number	2
DOIs	https://doi.org/10.1115/1.2840966
Publication status	Published - Apr 2008
Externally published	Yes

Access to Document

10.1115/1.2840966

Cite this

@article{1c8d998bc3e240ad9d668472d69e84ca,

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

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.",

year = "2008",

month = apr,

doi = "10.1115/1.2840966",

language = "English",

volume = "130",

pages = "210081--210086",

journal = "Journal of Engineering Materials and Technology",

issn = "0094-4289",

publisher = "The American Society of Mechanical Engineers(ASME)",

number = "2",

}

TY - JOUR

T1 - In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation

AU - Liu, Liu

AU - Husseini, Naji S.

AU - Torbet, Christopher J.

AU - Kumah, Divine P.

AU - Clarke, Roy

AU - Pollock, Tresa M.

AU - Wayne Jones, J.

PY - 2008/4

Y1 - 2008/4

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.

UR - http://www.scopus.com/inward/record.url?scp=47149111212&partnerID=8YFLogxK

U2 - 10.1115/1.2840966

DO - 10.1115/1.2840966

M3 - Article

AN - SCOPUS:47149111212

SN - 0094-4289

VL - 130

SP - 210081

EP - 210086

JO - Journal of Engineering Materials and Technology

JF - Journal of Engineering Materials and Technology

IS - 2

ER -

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this