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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12657
Title: Constitutive analysis of Zr-1Nb alloy for different phase regions
Authors: Saxena K.K.
Chetan K.
Vaibhav K.
Mani Krishna K.V.
Pancholi, Vivek
Jha S.K.
Srivastava D.
Published in: Materials Performance and Characterization
Abstract: The hot deformation behavior of alloys that exhibit allotropy is expected to be dependent on phase/phase mixture present. Therefore, the development of a constitutive equation for finite element method (FEM) simulation of industrial hot deformation processes should consider the effect of phase/phase mixture on parameters of constitutive equation. Hot compression tests of Zr-1Nb alloy were carried out at temperatures covering single α-phase, single β-phase, and two-phase α+β, for a range of strain rates. The stress-strain data of hot compression test were corrected for adiabatic temperature rise (ATR) at a strain rate of 1 s−1 and above. Constitutive equations were developed based on phase(s) present. Developed constitutive equations were validated by experimental flow stress data and FEM simulation. FEM simulation confirmed that the phase-wise constitutive equation provides better simulation results of the industrial extrusion process. Furthermore, the ram force profile obtained from the simulation was similar to the ram force profile of the physical extrusion experiment. Thus, by using correct phase-wise constitutive parameters in FEM simulation, the ram force for industrial hot processes can be correctly predicted. © 2019 by ASTM International
Citation: Materials Performance and Characterization (2019), 8(5): -
URI: https://doi.org/10.1520/MPC20190020
http://repository.iitr.ac.in/handle/123456789/12657
Issue Date: 2019
Publisher: ASTM International
Keywords: Constitutive equation
Finite element method simulation
Hot compression
Hot extrusion
Two-phase alloy
ISSN: 21653992
Author Scopus IDs: 56612928200
57206183819
54882589800
14628923800
14071738800
56711611100
57196741375
Author Affiliations: Saxena, K.K., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India, Department of Mechanical Engineering, Institute of Engineering and Technology, GLA University, Mathura, Uttar Pradesh, 281406, India
Chetan, K., Nuclear Fuel Complex Limited, Hyderabad, 501301, India
Vaibhav, K., Nuclear Fuel Complex Limited, Hyderabad, 501301, India
Mani Krishna, K.V., Materials Science Division, Bhabha Atomic Research Center, Mumbai, 40085, India
Pancholi, V., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, 247667, India
Jha, S.K., Mishra Dhatu Nigam Limited, Telangana, Kanchanbhag, Hyderabad, 500058, India
Srivastava, D., Nuclear Fuel Complex Limited, Hyderabad, 501301, India
Corresponding Author: Pancholi, V.; Department of Metallurgical and Materials Engineering, Indian Institute of TechnologyIndia; email: vivekfmt@iitr.ac.in
Appears in Collections:Journal Publications [MT]

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