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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18210
Title: Peak stress studies of hot compressed TiHy 600 alloy
Authors: Basanth Kumar K.
Saxena K.K.
Dey S.R.
Pancholi, Vivek
Bhattacharjee A.
Published in: Proceedings of Materials Today
Abstract: TiHy 600 is a near alpha titanium alloy similar to IMI 834 Ti alloy, widely used for gas turbine engine applications such as disc and blades for high pressure compressors. Flow behavior of TiHy 600 alloy is investigated by conducting hot compression tests at temperatures ranging from 900°C to 1050°C with in the strain rate range of (0.001/s) respectively up to 50% deformation. Constitute modeling of work hardening is established, using Cingara equation to verify the stress up to peak stress. It was found that experimental true stress-true strain curves are in good agreement with Cingara equation curves for all temperatures at strain rate of (0.001/s)up to their peak stress values. The average activation energy (Q) is calculated from the peak stress of the flow curves using the hyperbolic-sine law equation (Arrhenius equation) i.e. 851.506KJ/mol. The microstructures of 50% deformed samples are correlated with the post-peak stress flow curve, performed mainly to compare the various softening processes (DRV or DRX). © 2017 Elsevier Ltd.
Citation: Proceedings of Materials Today, (2017), 7365- 7374
URI: https://doi.org/10.1016/j.matpr.2017.07.066
http://repository.iitr.ac.in/handle/123456789/18210
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Cingara equation
Constitution modeling
DRV and DRX
Hot compression
ISSN: 22147853
Author Scopus IDs: 57196218377
56612928200
8352504300
14071738800
8219614100
Author Affiliations: Basanth Kumar, K., Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Hyderabad, Kandi Sangareddy, Telangana 502285, India
Saxena, K.K., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee Uttarakhand, 247667, India
Dey, S.R., Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Hyderabad, Kandi Sangareddy, Telangana 502285, India
Pancholi, V., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee Uttarakhand, 247667, India
Bhattacharjee, A., Titanium Alloy Group, Defence Metallurgical Research Laboratory (DMRL), Kanchanbagh, Telangana 500058, India
Corresponding Author: Dey, S.R.; Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology HyderabadIndia; email: suhash@iith.ac.in
Appears in Collections:Conference Publications [MT]

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