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https://doi.org/10.3938/NPSM.66.489
Residual Stress Evaluation of a Shot Peening Specimen by Using a Rayleigh Wave
New Physics: Sae Mulli 2016; 66: 489~493
Published online April 29, 2016;  https://doi.org/10.3938/NPSM.66.489
© 2016 New Physics: Sae Mulli.

Taek-Gyu LEE1, Hak-Joon KIM1, Sung-Jin SONG1, Sung-Duk KWON*2

1 School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea

2 Department of Physics, Andong National University, Andong 36729, Korea

Correspondence to: sdkwon@anu.ac.kr
Received December 14, 2015; Revised January 7, 2016; Accepted January 11, 2016.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Inconel is used in jet engines or nuclear reactors because of its excellent heat resistance and tensile strength. Artificial changes in the material's surface in order to delay degradation causes the equipment to become obsolescent. Shot Peening is an effective way for a material to withstand the stress generated by a vibration of a strong load, and the fatigue limit for a compressive residual stress applied to the material's surface is increased by spraying the surface with shot balls at a high speed. Univesally, conventional X-ray diffraction (XRD) is used to measure the residual stress in the material's surface. In this study, measured the residual stress in a material's surface by using a Rayleigh wave and XRD equipment.
PACS numbers: 43.35.+d
Keywords: Rayleigh wave, Minimum reflection, XRD, Shot Peening


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