Influence of ordered L12 precipitation on strain-rate dependent mechanical behavior in a eutectic high entropy alloy

Gwalani, Bharat; Gangireddy, Sindhura; Zheng, Yufeng; Soni, Vishal; Mishra, Rajiv S.; Banerjee, Rajarshi

doi:10.1038/s41598-019-42870-y

Title: Influence of ordered L1₂ precipitation on strain-rate dependent mechanical behavior in a eutectic high entropy alloy

Journal Article · Tue Apr 23 00:00:00 EDT 2019 · Scientific Reports

DOI:https://doi.org/10.1038/s41598-019-42870-y· OSTI ID:1624465

Gwalani, Bharat ^[1]; Gangireddy, Sindhura ^[2]; Zheng, Yufeng ^[3]; Soni, Vishal ^[4];

^[5]; Banerjee, Rajarshi ^[5]

Univ. of North Texas, Denton, TX (United States). Advanced Materials and Manufacturing Processes Inst. and Materials Science and Engineering; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Univ. of North Texas, Denton, TX (United States). Advanced Materials and Manufacturing Processes Inst.
The Ohio State Univ., Columbus, OH (United States). Dept. of Materials Science and Engineering
Univ. of North Texas, Denton, TX (United States). Materials Science and Engineering
Univ. of North Texas, Denton, TX (United States). Advanced Materials and Manufacturing Processes Inst. and Materials Science and Engineering

Recent studies indicate that eutectic high-entropy alloys can simultaneously possess high strength and high ductility, which have potential industrial applications. The present study focuses on Al0.7CoCrFeNi, a lamellar dual-phase (fcc?+?B2) precipitation-strengthenable eutectic high entropy alloy. This alloy exhibits an fcc?+?B2 (B2 with bcc nano-precipitates) microstructure resulting in a combination of the soft and ductile fcc phase together with hard B2 phase. Low temperature annealing leads to the precipitation of ordered L12 intermetallic precipitates within the fcc resulting in enhanced strength. The strengthening contribution due to fine scale L12 is modeled using Orowan dislocation bowing and by-pass mechanism. The alloy was tested under quasi-static (strain-rate?=?10-3 s-1) tensile loading and dynamic (strain-rate?=?103 s-1) compressive loading. Due to the fine lamellar microstructure with a large number of fcc-bcc interfaces, the alloy show relatively high flow-stresses, ~1400?MPa under quasi-static loading and in excess of 1800 MPa under dynamic loading. Interestingly, the coherent nano-scale L12 precipitate caused a significant rise in the yield strength, without affecting the strain rate sensitivity (SRS) significantly. These lamellar structures had higher work hardening due to their capability for easily storing higher dislocation densities. The back-stresses from the coherent L12 precipitate were insufficient to cause improvement in twin nucleation, owing to elevated twinning stress under quasi-static testing. However, under the dynamic testing high density of twins were observed.

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Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC05-76RL01830

OSTI ID:: 1624465

Alternate ID(s):: OSTI ID: 1736019

Report Number(s):: PNNL-SA-145678; PII: 42870

Journal Information:: Scientific Reports, Vol. 9, Issue 1; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 39 works

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References (31)

Cold-rolling and recrystallization textures of a nano-lamellar AlCoCrFeNi2.1 eutectic high entropy alloy Wani, I. S.; Bhattacharjee, T.; Sheikh, S. Intermetallics, Vol. 84 https://doi.org/10.1016/j.intermet.2016.12.018	journal	May 2017
Effect of severe cold-rolling and annealing on microstructure and mechanical properties of AlCoCrFeNi _2.1 eutectic high entropy alloy Wani, I. S.; Bhattacharjee, T.; Sheikh, S. IOP Conference Series: Materials Science and Engineering, Vol. 194 https://doi.org/10.1088/1757-899x/194/1/012018	journal	May 2017
Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys Senkov, O. N.; Wilks, G. B.; Scott, J. M. Intermetallics, Vol. 19, Issue 5 https://doi.org/10.1016/j.intermet.2011.01.004	journal	May 2011
Investigation of plastic deformation modes in Al0.1CoCrFeNi high entropy alloy Choudhuri, D.; Komarasamy, M.; Ageh, V. Materials Chemistry and Physics, Vol. 217 https://doi.org/10.1016/j.matchemphys.2018.05.050	journal	September 2018
Microstructural development in equiatomic multicomponent alloys Cantor, B.; Chang, I. T. H.; Knight, P. Materials Science and Engineering: A, Vol. 375-377 https://doi.org/10.1016/j.msea.2003.10.257	journal	July 2004
Microstructure and room-temperature mechanical properties of Fe30Ni20Mn35Al15 Liao, Yifeng; Baker, Ian Materials Characterization, Vol. 59, Issue 11 https://doi.org/10.1016/j.matchar.2008.01.017	journal	November 2008
Strain hardening behavior of a Fe–18Mn–0.6C–1.5Al TWIP steel Jin, Jae-Eun; Lee, Young-Kook Materials Science and Engineering: A, Vol. 527, Issue 1-2 https://doi.org/10.1016/j.msea.2009.08.028	journal	December 2009
The influences of temperature and microstructure on the tensile properties of a CoCrFeMnNi high-entropy alloy Otto, F.; Dlouhý, A.; Somsen, Ch. Acta Materialia, Vol. 61, Issue 15 https://doi.org/10.1016/j.actamat.2013.06.018	journal	September 2013
Refractory high-entropy alloys Senkov, O. N.; Wilks, G. B.; Miracle, D. B. Intermetallics, Vol. 18, Issue 9 https://doi.org/10.1016/j.intermet.2010.05.014	journal	September 2010
A Promising New Class of High-Temperature Alloys: Eutectic High-Entropy Alloys Lu, Yiping; Dong, Yong; Guo, Sheng Scientific Reports, Vol. 4, Issue 1 https://doi.org/10.1038/srep06200	journal	August 2014
Microstructure characterization of CoCrFeNiMnPd eutectic high-entropy alloys Tan, Yiming; Li, Jinshan; Wang, Jun Journal of Alloys and Compounds, Vol. 731 https://doi.org/10.1016/j.jallcom.2017.09.057	journal	January 2018
A strategy to improve the work-hardening behavior of Ti–6Al–4V parts produced by additive manufacturing de Formanoir, Charlotte; Brulard, Alice; Vivès, Solange Materials Research Letters, Vol. 5, Issue 3 https://doi.org/10.1080/21663831.2016.1245681	journal	October 2016
Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes Yeh, J.-W.; Chen, S.-K.; Lin, S.-J. Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303 https://doi.org/10.1002/adem.200300567	journal	May 2004
Microstructure and mechanical properties of CoCrFeNiZrx eutectic high-entropy alloys Huo, Wenyi; Zhou, Hui; Fang, Feng Materials & Design, Vol. 134 https://doi.org/10.1016/j.matdes.2017.08.030	journal	November 2017
Evolution of the microstructure and mechanical properties of eutectic Fe30Ni20Mn35Al15 Liao, Yifeng; Baker, Ian Journal of Materials Science, Vol. 46, Issue 7 https://doi.org/10.1007/s10853-010-5197-6	journal	January 2011
Crystallographically degenerate B2 precipitation in a plastically deformed fcc-based complex concentrated alloy Choudhuri, Deep; Shukla, Shivakant; Green, Whitley B. Taylor & Francis https://doi.org/10.6084/m9.figshare.5822160.v1	text	January 2018
High-velocity deformation of Al0.3CoCrFeNi high-entropy alloy: Remarkable resistance to shear failure Li, Z.; Zhao, S.; Diao, H. Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/srep42742	journal	February 2017
High-Strain-Rate Deformation: Mechanical Behavior and Deformation Substructures Induced (Rusty) Gray, George T. Annual Review of Materials Research, Vol. 42, Issue 1 https://doi.org/10.1146/annurev-matsci-070511-155034	journal	August 2012
Strain hardening regimes and microstructural evolution during large strain compression of low stacking fault energy fcc alloys that form deformation twins Asgari, Sirous; El-Danaf, Ehab; Kalidindi, Surya R. Metallurgical and Materials Transactions A, Vol. 28, Issue 9 https://doi.org/10.1007/s11661-997-0109-3	journal	September 1997
Crystallographically degenerate B2 precipitation in a plastically deformed fcc -based complex concentrated alloy Choudhuri, Deep; Shukla, Shivakant; Green, Whitley B. Materials Research Letters, Vol. 6, Issue 3 https://doi.org/10.1080/21663831.2018.1426649	journal	December 2017
Influence of grain size and stacking-fault energy on deformation twinning in fcc metals El-Danaf, Ehab; Kalidindi, Surya R.; Doherty, Roger D. Metallurgical and Materials Transactions A, Vol. 30, Issue 5 https://doi.org/10.1007/s11661-999-0272-9	journal	May 1999
Ultrafine-Grained AlCoCrFeNi _2.1 Eutectic High-Entropy Alloy Wani, I. S.; Bhattacharjee, T.; Sheikh, S. Materials Research Letters, Vol. 4, Issue 3 https://doi.org/10.1080/21663831.2016.1160451	journal	March 2016
Tensile yield strength of a single bulk Al0.3CoCrFeNi high entropy alloy can be tuned from 160 MPa to 1800 MPa Gwalani, Bharat; Gorsse, Stephane; Choudhuri, Deep Scripta Materialia, Vol. 162 https://doi.org/10.1016/j.scriptamat.2018.10.023	journal	March 2019
Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures Gludovatz, Bernd; Hohenwarter, Anton; Thurston, Keli V. S. Nature Communications, Vol. 7, Issue 1 https://doi.org/10.1038/ncomms10602	journal	February 2016
Size dependent plasticity and damage response in multiphase body centered cubic high entropy alloys Basu, Indranil; Ocelík, Václav; De Hosson, Jeff Th M. Acta Materialia, Vol. 150 https://doi.org/10.1016/j.actamat.2018.03.015	journal	May 2018
On the room-temperature deformation mechanisms of lamellar-structured Fe30Ni20Mn35Al15 Liao, Yifeng; Baker, Ian Materials Science and Engineering: A, Vol. 528, Issue 12 https://doi.org/10.1016/j.msea.2011.01.089	journal	May 2011
Tailoring nanostructures and mechanical properties of AlCoCrFeNi2.1 eutectic high entropy alloy using thermo-mechanical processing Wani, I. S.; Bhattacharjee, T.; Sheikh, S. Materials Science and Engineering: A, Vol. 675 https://doi.org/10.1016/j.msea.2016.08.048	journal	October 2016
Directly cast bulk eutectic and near-eutectic high entropy alloys with balanced strength and ductility in a wide temperature range Lu, Yiping; Gao, Xuzhou; Jiang, Li Acta Materialia, Vol. 124 https://doi.org/10.1016/j.actamat.2016.11.016	journal	February 2017
Modifying transformation pathways in high entropy alloys or complex concentrated alloys via thermo-mechanical processing Gwalani, Bharat; Gorsse, Stephane; Choudhuri, Deep Acta Materialia, Vol. 153 https://doi.org/10.1016/j.actamat.2018.05.009	journal	July 2018
Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures Gludovatz, Bernd; Hohenwarter, Anton; Thurston, Keli V. S. arXiv https://doi.org/10.48550/arxiv.1602.01155	text	January 2016
Microstructural dependence of strain rate sensitivity in thermomechanically processed Al0.1CoCrFeNi high entropy alloy Gangireddy, Sindhura; Kaimiao, Liu; Gwalani, Bharat Materials Science and Engineering: A, Vol. 727 https://doi.org/10.1016/j.msea.2018.04.108	journal	June 2018

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Title: Influence of ordered L1₂ precipitation on strain-rate dependent mechanical behavior in a eutectic high entropy alloy