Various mechanical surface treatment technologies have been invented and developed to induce a protective layer of compressive residual stress at the surface of gas turbine engine components where the operating loads are tensile dominated. The benefits of these surface treatments are to prevent crack initiation, to retard propagation of small cracks, and even to resist corrosion and wear damage. In this paper the literature on these technologies and their effects on component reliability and durability is reviewed, with an emphasis on shot peening (SP), laser shock peening (LSP), and low plasticity burnishing (LPB). The relative advantages of these three surface treatment technologies, as well as their limitations, are identified and evaluated. The most important issues for these three technologies, and the relative merits of the resultant residual stress fields, are presented and discussed with a view to enhancing gas turbine engine component operating lives.
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e-mail: wyman.zhuang@dsto.defence.gov.au
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October 2003
Technical Papers
Mechanical Surface Treatment Technologies for Gas Turbine Engine Components
W. Zhuang,
e-mail: wyman.zhuang@dsto.defence.gov.au
W. Zhuang
Air Vehicle Division, Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organization, Melbourne, VIC 3207, Australia
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B. Wicks
B. Wicks
Air Vehicle Division, Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organization, Melbourne, VIC 3207, Australia
Search for other works by this author on:
W. Zhuang
Air Vehicle Division, Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organization, Melbourne, VIC 3207, Australia
e-mail: wyman.zhuang@dsto.defence.gov.au
B. Wicks
Air Vehicle Division, Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organization, Melbourne, VIC 3207, Australia
Contributed by the Manufacturing Materials and Metallurgy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the Manufacturing Materials and Metallurgy Division Nov. 2001; final revision received Feb. 2003. IGTI Chair: S. Gollahalli.
J. Eng. Gas Turbines Power. Oct 2003, 125(4): 1021-1025 (5 pages)
Published Online: November 18, 2003
Article history
Received:
November 1, 2001
Revised:
February 1, 2003
Online:
November 18, 2003
Citation
Zhuang, W., and Wicks, B. (November 18, 2003). "Mechanical Surface Treatment Technologies for Gas Turbine Engine Components ." ASME. J. Eng. Gas Turbines Power. October 2003; 125(4): 1021–1025. https://doi.org/10.1115/1.1610011
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