Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures

Otto, F.; Dlouhý, A.; Pradeep, K. G.; Kuběnová, M.; Raabe, D.; Eggeler, G.; George, E. P.

doi:10.1016/j.actamat.2016.04.005

Title: Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures

Full Record
Other Related Research

Authors:: Otto, F.; Dlouhý, A.; Pradeep, K. G.; Kuběnová, M.; Raabe, D.; Eggeler, G.; George, E. P.

Publication Date:: Wed Jun 01 00:00:00 EDT 2016

Sponsoring Org.:: USDOE

OSTI Identifier:: 1351006

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Name: Acta Materialia Journal Volume: 112 Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Citation Formats


                    Otto, F., Dlouhý, A., Pradeep, K. G., Kuběnová, M., Raabe, D., Eggeler, G., and George, E. P. Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures.  United States: N. p., 2016. 
Web.  doi:10.1016/j.actamat.2016.04.005.

Copy to clipboard


                    Otto, F., Dlouhý, A., Pradeep, K. G., Kuběnová, M., Raabe, D., Eggeler, G., & George, E. P. Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures.  United States.  https://doi.org/10.1016/j.actamat.2016.04.005

Copy to clipboard


                    Otto, F., Dlouhý, A., Pradeep, K. G., Kuběnová, M., Raabe, D., Eggeler, G., and George, E. P. Wed .  
"Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures".  United States.  https://doi.org/10.1016/j.actamat.2016.04.005.

Copy to clipboard


                    
@article{osti_1351006,

  title        = {Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures},

  author       = {Otto, F. and Dlouhý, A. and Pradeep, K. G. and Kuběnová, M. and Raabe, D. and Eggeler, G. and George, E. P.},

  abstractNote = {},

  doi          = {10.1016/j.actamat.2016.04.005},

  journal      = {Acta Materialia},

  number       = C,

  volume       = 112,

  place        = {United States},

  year         = {Wed Jun 01 00:00:00 EDT 2016},

  month        = {Wed Jun 01 00:00:00 EDT 2016}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1016/j.actamat.2016.04.005

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 508 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

EFFECTS OF NICKEL ADMIXTURES ON THE PHASE TRANSFORMATIONS IN Al-Cu ALLOYS AT PROLONGED HIGH TEMPERATURE ANNEALING (in Russian)

Journal Article Zhmudskii, A Z ; Maksimyuk, P A - Metalloved. i Obrabotka Metal

The admixture of nickel retards the diffusion processes in Al - Cu - Ni alloys rt elevrted amperature and increases the heat resistance of aluminum alloys.. (R.V.J)
Phase stability and kinetics of σ-phase precipitation in CrMnFeCoNi high-entropy alloys

Journal Article Laplanche, G. ; Berglund, S. ; Reinhart, C. ; ... - Acta Materialia

Although the phase stability of high-entropy alloys in the Cr-Mn-Fe-Co-Ni system has received considerable attention recently, knowledge of their thermodynamic equilibrium states and precipitation kinetics during high-temperature exposure is limited. In the present study, an off-equiatomic Cr₂₆Mn₂₀Fe₂₀Co₂₀Ni₁₄ high-entropy alloy was solutionized and isothermally aged at temperatures between 600 °C and 1000 °C for times to 1000 h. In the original single-phase fcc matrix, an intermetallic σ phase was found to form at all investigated temperatures. Its morphology and composition were determined and the precipitation kinetics analyzed using the Johnson-Mehl-Avrami-Kolmogorov equation and an Arrhenius type law. From these analyses, a time-temperature-transformationmore »« less
Cited by 142
https://doi.org/10.1016/j.actamat.2018.09.040
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi

Journal Article Tracy, Cameron L. ; Park, Sulgiye ; Rittman, Dylan R. ; ... - Nature Communications

High-entropy alloys, near-equiatomic solid solutions of five or more elements, represent a new strategy for the design of materials with properties superior to those of conventional alloys. However, their phase space remains constrained, with transition metal high-entropy alloys exhibiting only face- or body-centered cubic structures. Here, we report the high-pressure synthesis of a hexagonal close-packed phase of the prototypical high-entropy alloy CrMnFeCoNi. This martensitic transformation begins at 14 GPa and is attributed to suppression of the local magnetic moments, destabilizing the initial fcc structure. Similar to fcc-to-hcp transformations in Al and the noble gases, the transformation is sluggish, occurring overmore »« less
Cited by 208
https://doi.org/10.1038/ncomms15634

Full Text Available
High pressure synthesis of a hexagonal close-packed phase of the high-entropy alloy CrMnFeCoNi

Journal Article Tracy, Cameron L. ; Park, Sulgiye ; Rittman, Dylan R. ; ... - Nature Communications

High-entropy alloys, near-equiatomic solid solutions of five or more elements, represent a new strategy for the design of materials with properties superior to those of conventional alloys. However, their phase space remains constrained, with transition metal high-entropy alloys exhibiting only face- or body-centered cubic structures. Here, we report the high-pressure synthesis of a hexagonal close-packed phase of the prototypical high-entropy alloy CrMnFeCoNi. This martensitic transformation begins at 14 GPa and is attributed to suppression of the local magnetic moments, destabilizing the initial fcc structure. Similar to fcc-to-hcp transformations in Al and the noble gases, the transformation is sluggish, occurring overmore »« less
https://doi.org/10.1038/ncomms15634
Elemental segregation to lattice defects in the CrMnFeCoNi high-entropy alloy during high temperature exposures

Journal Article Heczko, Milan ; Mazanova, Veronika ; Groger, Roman ; ... - Acta Materialia

The influence of small plastic pre-strains on the elevated-temperature stability and microstructure of the equiatomic CrMnFeCoNi FCC solid solution is investigated. Particular attention is given to whether any of the alloy elements segregate to individual dislocations. To that end, CrMnFeCoNi samples were first deformed in tension at room temperature to plastic strains of 0.2 and 2.3%, and subsequently annealed at 973 K for 800 hours. The pre-strains activated planar slip of 1/2<110>-type dislocations on {111}-type glide planes. Interactions of this planar slip with special Σ3 grain boundaries formed a large number of dislocation segments with a <110>-type crystallographic orientation suitablemore »« less
https://doi.org/10.1016/j.actamat.2021.116719

Full Text Available

Similar Records