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Temperature and Strain Rate Dependent Anisotropic Plastic Deformation Behavior of AZ31B Mg Alloy

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Title Temperature and Strain Rate Dependent Anisotropic Plastic Deformation Behavior of AZ31B Mg Alloy
 
Creator Jaimin, Aarjoo
Kotkunde, Nitin
Morchhale, Ayush
Anand, Aditya Raj
Sadhukhan, Anurag
Singh, Swadesh Kumar
 
Subject AZ31B
Deformation Behavior
Strain Hardening Behavior
Sheet Metal
K-M plot
 
Description 723-729
In the present study, the plastic deformation of commercially available AZ31B alloy at different temperatures
(300K-473K) and strain rates (0.1s-1-0.01s-1-0.001s-1) under uniaxial tensile test has been carried out. Three different sheet
orientations, viz., rolling direction (RD), transverse direction (TD), and 45° to rolling direction have been used. The
outcomes of the experiments have demonstrated a temperature-dependent relationship between mechanical properties such
as yield strength, ultimate tensile strength, and percentage elongation. The yield strength and ultimate tensile strength has
decreased by 28.58% and 31.03% respectively as temperature increased from 300 K to 473 K. At elevated temperature
(473 K) the material has exhibited highest ductility (64.88%) as compare to 300 K. The hardening exponent has been found
to decrease with increasing temperature. The flow stress behaviour has been predicted using work hardening models such as
the Hollomon and Ludwik. Two-stage work hardening behavior has been observed at all the temperatures. According to
statistical parameter comparison, Ludwik equation prediction capability of correlation coefficient (0.9959) has been found to
be best in agreement with the experimental results.
 
Date 2023-01-20T10:48:05Z
2023-01-20T10:48:05Z
2023-01
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/61239
https://doi.org/10.56042/ijems.v29i6.70311
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.29(6) [December 2022]