skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Peierls barrier characteristic and anomalous strain hardening provoked by dynamic-strain-aging strengthening in a body-centered-cubic high-entropy alloy

Abstract

The temperature effect on the mechanical behavior of the HfNbTaTiZr high entropy alloy (HEA) was investigated at 77–673 K. The decrease of the yield strength with increasing the temperature was mechanistically analyzed by considering contributions from various strengthening mechanisms. An anomalous dependence of strain hardening on temperature was observed and was justified to be caused by dynamic strain aging (DSA) as an extra strengthening mechanism at elevated temperatures. A model was constructed to split the overall strain hardening into forest hardening and DSA hardening, both of which were theoretically quantified at all temperatures considered. The work quantifies the height of Peierls barriers in the bcc HfNbTaTiZr HEA, and reveals dynamic strain aging as the strengthening mechanism causing the anomalous strain hardening at elevated temperatures.

Authors:
 [1]; ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [2];  [2];  [3];  [4]; ORCiD logo [4];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. National Tsing Hua Univ., Hsinchu (Taiwan)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; National Science Foundation (NSF); Ministry of Science and Technology
OSTI Identifier:
1618863
Alternate Identifier(s):
OSTI ID: 1648954
Grant/Contract Number:  
AC02-06CH11357; DMR-1611180; 1809640; MOST 107-3017-F-007-003; AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 7; Journal Issue: 12; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; strain hardening; dislocation width; dynamic strain aging; serrated flow; temperature dependence

Citation Formats

Chen, S. Y., Wang, L., Li, W. D., Tong, Y., Tseng, K. K., Tsai, C. W., Yeh, J. W., Ren, Y., Guo, W., Poplawsky, J. D., and Liaw, P. K. Peierls barrier characteristic and anomalous strain hardening provoked by dynamic-strain-aging strengthening in a body-centered-cubic high-entropy alloy. United States: N. p., 2019. Web. https://doi.org/10.1080/21663831.2019.1658233.
Chen, S. Y., Wang, L., Li, W. D., Tong, Y., Tseng, K. K., Tsai, C. W., Yeh, J. W., Ren, Y., Guo, W., Poplawsky, J. D., & Liaw, P. K. Peierls barrier characteristic and anomalous strain hardening provoked by dynamic-strain-aging strengthening in a body-centered-cubic high-entropy alloy. United States. https://doi.org/10.1080/21663831.2019.1658233
Chen, S. Y., Wang, L., Li, W. D., Tong, Y., Tseng, K. K., Tsai, C. W., Yeh, J. W., Ren, Y., Guo, W., Poplawsky, J. D., and Liaw, P. K. Tue . "Peierls barrier characteristic and anomalous strain hardening provoked by dynamic-strain-aging strengthening in a body-centered-cubic high-entropy alloy". United States. https://doi.org/10.1080/21663831.2019.1658233. https://www.osti.gov/servlets/purl/1618863.
@article{osti_1618863,
title = {Peierls barrier characteristic and anomalous strain hardening provoked by dynamic-strain-aging strengthening in a body-centered-cubic high-entropy alloy},
author = {Chen, S. Y. and Wang, L. and Li, W. D. and Tong, Y. and Tseng, K. K. and Tsai, C. W. and Yeh, J. W. and Ren, Y. and Guo, W. and Poplawsky, J. D. and Liaw, P. K.},
abstractNote = {The temperature effect on the mechanical behavior of the HfNbTaTiZr high entropy alloy (HEA) was investigated at 77–673 K. The decrease of the yield strength with increasing the temperature was mechanistically analyzed by considering contributions from various strengthening mechanisms. An anomalous dependence of strain hardening on temperature was observed and was justified to be caused by dynamic strain aging (DSA) as an extra strengthening mechanism at elevated temperatures. A model was constructed to split the overall strain hardening into forest hardening and DSA hardening, both of which were theoretically quantified at all temperatures considered. The work quantifies the height of Peierls barriers in the bcc HfNbTaTiZr HEA, and reveals dynamic strain aging as the strengthening mechanism causing the anomalous strain hardening at elevated temperatures.},
doi = {10.1080/21663831.2019.1658233},
journal = {Materials Research Letters},
number = 12,
volume = 7,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Initiation of Dynamic Recrystallization in Constant Strain Rate Hot Deformation
journal, January 2003


The temperature dependence of the yield stress of polycrystalline iron
journal, January 1963


Phase transformations of HfNbTaTiZr high-entropy alloy at intermediate temperatures
journal, January 2019


The Peierls Stress of Dislocations: An Analytic Formula
journal, January 1997


Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys
journal, May 2011


Theory of the effect of dynamic strain aging on mechanical properties
journal, July 1975


Statistics of the Catastrophic Slip Events in the Portevin–Le Châtelier Effect
journal, June 1995


Yielding and work-hardening in alpha-brasses
journal, August 1960


Mechanical properties and thermally activated plasticity of the Ti30Zr25Hf15Nb20Ta10 high entropy alloy at temperatures 4.2–350 K
journal, January 2018

  • Podolskiy, A. V.; Tabachnikova, E. D.; Voloschuk, V. V.
  • Materials Science and Engineering: A, Vol. 710
  • DOI: 10.1016/j.msea.2017.10.073

Effect of dynamic strain aging on high temperature properties of austenitic stainless steel
journal, August 2004

  • Peng, Kaiping; Qian, Kuangwu; Chen, Wenzhe
  • Materials Science and Engineering: A, Vol. 379, Issue 1-2
  • DOI: 10.1016/j.msea.2004.03.004

Another manifestation of dynamic strain ageing
journal, January 1996

  • Samuel, K. G.; Mannan, S. L.; Rodriguez, P.
  • Journal of Materials Science Letters, Vol. 15, Issue 19
  • DOI: 10.1007/BF00636198

From Dislocation Junctions to Forest Hardening
journal, December 2002


A critical review of experimental results and constitutive models for BCC and FCC metals over a wide range of strain rates and temperatures
journal, January 1999


Tensile properties of annealed tantalum at low temperatures
journal, May 1955


Portevin-Le Chatelier mechanism in face-centered-cubic metallic alloys from low to high entropy
journal, November 2019


Serration and noise behaviors in materials
journal, October 2017


Solute strengthening of both mobile and forest dislocations: The origin of dynamic strain aging in fcc metals
journal, September 2008


On the physics of the Portevin-Le Châtelier effect part 1: The statistics of dynamic strain ageing
journal, March 1996


Quantum-to-continuum prediction of ductility loss in aluminium–magnesium alloys due to dynamic strain aging
journal, August 2014

  • Keralavarma, S. M.; Bower, A. F.; Curtin, W. A.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms5604

Tensile Properties of Ni-Based Superalloy 720Li: Temperature and Strain Rate Effects
journal, July 2008

  • Gopinath, K.; Gogia, A. K.; Kamat, S. V.
  • Metallurgical and Materials Transactions A, Vol. 39, Issue 10
  • DOI: 10.1007/s11661-008-9585-3

Effect of rolling temperature on microstructure and mechanical properties of 18%Mn TWIP/TRIP steels
journal, December 2017

  • Torganchuk, Vladimir; Belyakov, Andrey; Kaibyshev, Rustam
  • Materials Science and Engineering: A, Vol. 708
  • DOI: 10.1016/j.msea.2017.09.122

A simplified model connecting lattice distortion with friction stress of Nb-based equiatomic high-entropy alloys
journal, April 2019


Precipitation hardening
journal, December 1985


New observations on the mechanisms of dynamic strain aging and of jerky flow
journal, July 1979


Scaling Behavior of the Portevin–Le Chatelier Effect in an A l 2.5 % M g Alloy
journal, February 2005


On the Portevin–Le Chatelier effect
journal, January 2004