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Abstract
The goals of the present study are to strengthen a new, Hastelloy-X superalloys by prestressing the surface with laser-plasma driven shock waves and also to quantify the effect of Laser Shock Peening (LSP) on the evolution of phase, residual stress (both through thickness and on the surface), dislocation density, and hardness of Hastelloy-X superalloys. Dislocation densities in the peened and unpeened samples were measured by Wiliamson and Smallman approach to analyze the severity of plastic deformation following LSP surface treatment. The maximum compressive residual stress measured on the peened surface of Hastelloy-X samples using incremental hole drilling technique was 850 MPa. In addition, it was found that the LSP parameters have a dominant effect in tailoring the surface hardening behavior and residual stress in Hastelloy-X superalloys.
Original language | English |
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Pages (from-to) | 233-257 |
Number of pages | 25 |
Journal | International Journal of Peening Science & Technology |
Volume | 3 |
Publication status | Published - 1 Sept 2019 |
Bibliographical note
Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.Keywords
- Laser shock peening
- residual stress
- ncremental hole drilling
- dislocation density
- strain hardening
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Dive into the research topics of 'Estimation of laser shock peening induced plastic deformation in Hastelloy-X superalloys'. Together they form a unique fingerprint.Projects
- 1 Active
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EPSRC Laser Loan Pool: Science & Technology Facilities Council (STFC) Rutherford Appleton Laboratory - Laser Shock Peening of Advance Ceramics and Cermets Applicable for Cutting Tools
Lawrence, J. (Co-Investigator) & Shukla, P. (Principal Investigator)
2/10/14 → …
Project: Research