Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/89759
Title: Introduction of enhanced compressive residual stress profiles in aerospace components using combined mechanical surface treatments
Authors: Gopinath, Abhay
Lim, Andre
Nagarajan, Balasubramanian
Wong, Chow Cher
Maiti, Rajarshi
Castagne, Sylvie
Keywords: Mechanical Surface Treatments
Compressive Residual Stress
DRNTU::Engineering::Mechanical engineering
Issue Date: 2016
Source: Gopinath, A., Lim, A., Nagarajan, B., Wong, C. C., Maiti, R., & Castagne, S. (2016). Introduction of enhanced compressive residual stress profiles in aerospace components using combined mechanical surface treatments. IOP Conference Series: Materials Science and Engineering, 157, 012013-. doi:10.1088/1757-899X/157/1/012013
Series/Report no.: IOP Conference Series: Materials Science and Engineering
Abstract: Mechanical surface treatments such as Shot Peening (SP) and Deep Cold Rolling (DCR) are being used to introduce Compressive Residual Stress (CRS) at the surface and subsurface layers of aerospace components, respectively. This paper investigates the feasibility of a combined introduction of both the surface and sub-surface compressive residual stress on Ti6Al4V material through a successive application of the two aforementioned processes, one after the other. CRS profiles between individual processes were compared to that of combination of processes to validate the feasibility. It was found out that shot peening introduces surface compressive residual stress into the already deep cold rolled sample, resulting in both surface and sub-surface compressive residual stresses in the material. However the drawback of such a combination would be the increased surface roughness after shot peening a deep cold rolled sample which can be critical especially in compressor components. Hence, a new technology, Vibro-Peening (VP) may be used as an alternative to SP to introduce surface stress at reduced roughness.
URI: https://hdl.handle.net/10356/89759
http://hdl.handle.net/10220/47135
ISSN: 1757-8981
DOI: 10.1088/1757-899X/157/1/012013
Rights: © 2016 The Author(s) (IOP Publishing). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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