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

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.

doi:10.1080/21663831.2019.1658233

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:

Chen, S. Y. ^[1];

^[1]; Li, W. D. ^[1]; Tong, Y. ^[1]; Tseng, K. K. ^[2];

^[2]; Yeh, J. W. ^[2]; Ren, Y. ^[3]; Guo, W. ^[4];

^[4]; Liaw, P. K. ^[1]

Univ. of Tennessee, Knoxville, TN (United States)
National Tsing Hua Univ., Hsinchu (Taiwan)
Argonne National Lab. (ANL), Argonne, IL (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)

Publication Date:: Tue Aug 27 00:00:00 EDT 2019

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.  doi:10.1080/21663831.2019.1658233.

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                    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

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                    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.

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@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         = {Tue Aug 27 00:00:00 EDT 2019},

  month        = {Tue Aug 27 00:00:00 EDT 2019}

}

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

Abstract

Citation Formats

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

Temperature dependence of the mechanical properties of equiatomic solid solution alloys with face-centered cubic crystal structures journal, December 2014

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

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

Another manifestation of dynamic strain ageing journal, January 1996

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

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

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

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

Precipitation Hardening journal, June 1969

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

Temperature dependence of the mechanical properties of equiatomic solid solution alloys with face-centered cubic crystal structures
journal, December 2014

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

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

Another manifestation of dynamic strain ageing
journal, January 1996

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

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

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

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

Precipitation Hardening
journal, June 1969