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Title: High-temperature dependency of elastic mechanical behavior of two wrought magnesium alloys AZ31B and ZK60A studied by resonant ultrasound spectroscopy

Abstract

Resonant ultrasound spectroscopy (RUS) was used to study the elastic mechanical properties and internal friction of two wrought magnesium alloys, AZ31B and ZK60, from 25°C to 450°C. Samples in the rolled, transverse and normal directions were characterized at 50°C intervals to determine the temperature dependency of elastic moduli and stiffnesses for each direction. The temperature dependencies represented as, d E/d T, dG/d T, d B/d T, d C11/d T, d C12/d T, and d C44/d T are provided herein. To evaluate the RUS technique for this type of alloys, Young’s modulus was also determined by conventional static tension testing and the results were compared. From the same RUS experiment, the internal friction variation with temperature was calculated for both alloys. The coefficient of thermal expansion for each direction over the temperature range considered were determined, as they were needed to simulate the RUS spectra. This study shows that RUS can be a convenient and accurate technique to supply quantitative elastic mechanical data and fill the existing gaps on light metals characterization.

Authors:
 [1];  [2];  [3]
  1. CNS/Y-12 National Security Complex, Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
  3. Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1580703
Report Number(s):
IROS9966
Journal ID: ISSN 0921-5093
Grant/Contract Number:  
NA0001942
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Additional Journal Information:
Journal Volume: 758; Journal Issue: C; Journal ID: ISSN 0921-5093
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; resonant ultrasound spectroscopy (RUS); tension test; elastic mechanical behavior; high-temperature deformation; internal friction; AZ31B and ZK60A magnesium alloys

Citation Formats

Garlea, E., Radovic, M., and Liaw, P. K. High-temperature dependency of elastic mechanical behavior of two wrought magnesium alloys AZ31B and ZK60A studied by resonant ultrasound spectroscopy. United States: N. p., 2019. Web. doi:10.1016/j.msea.2019.04.115.
Garlea, E., Radovic, M., & Liaw, P. K. High-temperature dependency of elastic mechanical behavior of two wrought magnesium alloys AZ31B and ZK60A studied by resonant ultrasound spectroscopy. United States. doi:10.1016/j.msea.2019.04.115.
Garlea, E., Radovic, M., and Liaw, P. K. Fri . "High-temperature dependency of elastic mechanical behavior of two wrought magnesium alloys AZ31B and ZK60A studied by resonant ultrasound spectroscopy". United States. doi:10.1016/j.msea.2019.04.115. https://www.osti.gov/servlets/purl/1580703.
@article{osti_1580703,
title = {High-temperature dependency of elastic mechanical behavior of two wrought magnesium alloys AZ31B and ZK60A studied by resonant ultrasound spectroscopy},
author = {Garlea, E. and Radovic, M. and Liaw, P. K.},
abstractNote = {Resonant ultrasound spectroscopy (RUS) was used to study the elastic mechanical properties and internal friction of two wrought magnesium alloys, AZ31B and ZK60, from 25°C to 450°C. Samples in the rolled, transverse and normal directions were characterized at 50°C intervals to determine the temperature dependency of elastic moduli and stiffnesses for each direction. The temperature dependencies represented as, dE/dT, dG/dT, dB/dT, dC11/dT, dC12/dT, and dC44/dT are provided herein. To evaluate the RUS technique for this type of alloys, Young’s modulus was also determined by conventional static tension testing and the results were compared. From the same RUS experiment, the internal friction variation with temperature was calculated for both alloys. The coefficient of thermal expansion for each direction over the temperature range considered were determined, as they were needed to simulate the RUS spectra. This study shows that RUS can be a convenient and accurate technique to supply quantitative elastic mechanical data and fill the existing gaps on light metals characterization.},
doi = {10.1016/j.msea.2019.04.115},
journal = {Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing},
issn = {0921-5093},
number = C,
volume = 758,
place = {United States},
year = {2019},
month = {5}
}

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