2017
DOI: 10.1007/s11669-017-0570-7
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TCHEA1: A Thermodynamic Database Not Limited for “High Entropy” Alloys

Abstract: In this paper we report a thermodynamic database which was developed by using the CALPHAD approach. The TCHEA1 database includes 15 chemical elements (Al, Co, Cr, Cu, Fe, Hf, Mn, Mo, Nb, Ni, Ta, Ti, V, W and Zr). It is suitable for the study of Bcc and Fcc HEA systems. The database is constructed based on the thermodynamic assessment of all binary systems and many key ternary systems where almost all possible metastable and stable phases are considered. It is extensively demonstrated in the present work that … Show more

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Cited by 135 publications
(45 citation statements)
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“…The database used in this software was Thermo-Calc's high-entropy alloy (TCHEA1) database [18]. The phase prediction based on the TCHEA1 database was in good agreement with many experimental reports [19][20][21][22]. The first-principles method used in this study was based on DFT [23,24].…”
Section: Methodssupporting
confidence: 69%
“…The database used in this software was Thermo-Calc's high-entropy alloy (TCHEA1) database [18]. The phase prediction based on the TCHEA1 database was in good agreement with many experimental reports [19][20][21][22]. The first-principles method used in this study was based on DFT [23,24].…”
Section: Methodssupporting
confidence: 69%
“…Finally, the convex hull is computed over a desired range of compositions and temperatures. Several companies offer databases and associated software tools, notably PANDAT and Thermo-Calc, 93 each of which have developed databases geared toward the study of HEAs. There is also an open source effort.…”
Section: E Calphadmentioning
confidence: 99%
“…1 CALPHAD-predicted phase diagram for an HEA Al x CoCrFeNi above~700°C. This diagram was calculated using the Thermo-Calc HEA database 107 and is used to guide design of the processing of an HEA, specifically the compositional boundaries of the single phase FCC HEA (highlighted in green) and the temperatures in which postcast heat treatment (such as homogenization) can be applied (any temperature above the FCC + B2 solvus and below the FCC + Liquid solidus)…”
Section: Promotion Of Passivitymentioning
confidence: 99%