Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18211
Title: Effect of different proportion of coarse and fine grain microstructure on superplastic forming characteristic
Authors: Pancholi, Vivek
Rohit K.
Raja A.
Itoh G.
Kobayashi J.
Kitazono K.
Sato E.
Takayama Y.
Itoi T.
Morita K.
Published in: Proceedings of Materials Science Forum
Abstract: The study was carried out to understand the effect of inhomogeneous microstructure on thickness variation in superplastically formed bulge. Friction stir processing was performed at rotational and traverse speeds of 720rpm and 155mm/min respectively on a 6mm sheet maintaining 50% overlap on the retreating side. Different probe dimensions were selected to obtain different proportions of fine grained stir zone in thickness direction. The proportions of the fine grained stir zone were 25%, 50%, 72% and, 100%. The sheets containing inhomogeneous microstructure were subjected to superplastic bulge forming under constant gas pressure up to a bulge height of 23.5mm. The sheet which was processed with 72% fine grains showed lower thickness variation from edge to apex and the bulge shape in this condition was close to the ideal spherical profile. © 2016 Trans Tech Publications, Switzerland.
Citation: Proceedings of Materials Science Forum, (2016), 528- 533
URI: https://doi.org/10.4028/www.scientific.net/MSF.838-839.528
http://repository.iitr.ac.in/handle/123456789/18211
Issue Date: 2016
Publisher: Trans Tech Publications Ltd
Keywords: Bulge forming
FSP
Superplasticity
Thinning factor
ISBN: 9.78E+12
ISSN: 2555476
Author Scopus IDs: 14071738800
57209510684
57114501400
Author Affiliations: Pancholi, V., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Rohit, K., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Raja, A., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Corresponding Author: Pancholi, V.; Department of Metallurgical and Materials Engineering, Indian Institute of TechnologyIndia; email: vivekfmt@iitr.ac.in
Appears in Collections:Conference Publications [MT]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.