Mapping the world of complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2017.06.027
Abstract: This work explores the mechanical properties of high entropy alloys (HEAs) and complex concentrated alloys (CCAs) by comparing them with commercially available engineering alloys including industry-standard aerospace alloys. To reach this goal we have developed… read more here.
Keywords: ccas; temperature; concentrated alloys; room temperature ... See more keywords
High temperature strength of refractory complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2019 at "Acta Materialia"
DOI: 10.1016/j.actamat.2019.06.032
Abstract: ABSTRACT Thermodynamic and mechanical properties of 15 single-phase and 11 multi-phase refractory complex concentrated alloys (RCCAs) are reported. Using the CALPHAD approach, phase diagrams for these alloys are calculated to identify the solidus (melting, T… read more here.
Keywords: refractory complex; complex concentrated; concentrated alloys; strength ... See more keywords
In situ microstructural evolution in face-centered and body-centered cubic complex concentrated solid-solution alloys under heavy ion irradiation
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.07.066
Abstract: Abstract This study characterizes the microstructural evolution of single-phase complex concentrated solid-solution alloy (CSA) compositions under heavy ion irradiation with the goal of evaluating mechanisms for CSA radiation tolerance in advanced fission systems. Three such… read more here.
Keywords: irradiation; microstructural evolution; concentrated solid; solid solution ... See more keywords
Early oxidation stages of a Co-Cr-Fe-Mn-Ni-Si complex concentrated alloy with Cr, Mn, and Si contents matching those of 316L stainless steel
Sign Up to like & getrecommendations! Published in 2021 at "Corrosion Science"
DOI: 10.1016/j.corsci.2021.109642
Abstract: Abstract A complex concentrated Co-Cr-Fe-Mn-Ni-Si alloy with increased configurational entropy and contents of Cr, Mn, and Si corresponding to those in 316L stainless steel was studied with respect to its oxidation behavior. Early-stage oxidation was… read more here.
Keywords: complex concentrated; oxidation; 316l stainless; stainless steel ... See more keywords
Effect of Mo, Ta, V and Zr on a duplex bcc+orthorhombic refractory complex concentrated alloy using diffusion couples
Sign Up to like & getrecommendations! Published in 2020 at "Intermetallics"
DOI: 10.1016/j.intermet.2020.106836
Abstract: Abstract A scanning method based on diffusion couples has been set up to experimentally explore phase diagrams and to observe the stable phases in quinary alloys. This method enables to realize a fast, experimental and… read more here.
Keywords: bcc orthorhombic; refractory complex; complex concentrated; diffusion couples ... See more keywords
Metastability driven hierarchical microstructural engineering: Overview of mechanical properties of metastable complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.155625
Abstract: Abstract Complex concentrated alloys (CCAs) extend the compositional paradigm shift of high entropy alloys (HEAs) to new microstructural opportunities. CCAs provide opportunities for tunable performance by manipulating deformation mechanisms. Fe–Mn–Co–Cr–Si alloys exhibit potential for a… read more here.
Keywords: concentrated alloys; transformation; metastability driven; driven hierarchical ... See more keywords
The elastic-strain energy criterion of phase formation for complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2019 at "Materialia"
DOI: 10.1016/j.mtla.2019.100222
Abstract: Abstract An empirical method is developed, based on the calculated theoretical elastic-strain energy, to predict the phase formation and its stability for complex concentrated alloys. The method prediction quality is compared with the traditional empirical… read more here.
Keywords: phase; strain energy; elastic strain; complex concentrated ... See more keywords
Change in the primary solidification phase from fcc to bcc-based B2 in high entropy or complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2017 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2016.09.023
Abstract: Abstract An examination of a compositionally graded Al x CuCrFeNi 2 high entropy alloy (HEA) or complex concentrated alloy (CCA), revealed that marginally increasing Al content from x = 0.8 to x = 1.0 (+ 6 at.%) changes the primary solidification… read more here.
Keywords: phase; solidification; complex concentrated; primary solidification ... See more keywords
Fluctuations in local shear-fault energy produce unique and dominating strengthening in metastable complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2023 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2209188120
Abstract: Significance Complex concentrated alloys (CCAs) with multi elements in equiatomic ratios are exotic alloys but what governs their strength is currently not clearly understood. This work has proven the prime origin of strength in CCAs… read more here.
Keywords: ccas; fault energy; concentrated alloys; complex concentrated ... See more keywords
Crystallographically degenerate B2 precipitation in a plastically deformed fcc-based complex concentrated alloy
Sign Up to like & getrecommendations! Published in 2018 at "Materials Research Letters"
DOI: 10.1080/21663831.2018.1426649
Abstract: ABSTRACT Bcc-ordered B2 and fcc phases manifest three different orientation relationships (ORs) in the same microstructure: Kurdjumov–Sachs, Nishiyama–Wasserman and Pitsch. This unique microstructure was developed via conventional cold-rolling and subsequent annealing of an fcc-based Al0.3CoCrFeNi… read more here.
Keywords: crystallographically degenerate; degenerate precipitation; fcc based; concentrated alloy ... See more keywords
Current and emerging practices of CALPHAD toward the development of high entropy alloys and complex concentrated alloys
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Materials Research"
DOI: 10.1557/jmr.2018.152
Abstract: This work presents a critical review of the application of CALPHAD techniques in the development of high entropy alloys (HEAs) and complex concentrated alloys (CCAs). This assessment covers three major themes: thermodynamics of mixtures and… read more here.
Keywords: thermodynamics; entropy alloys; development high; high entropy ... See more keywords