Thermal stability of MoNbTaVW high entropy alloy thin films
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In: Coatings, Vol. 10, No. 10, 941, 10.2020, p. 1-8.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Thermal stability of MoNbTaVW high entropy alloy thin films
AU - Xia, Ao
AU - Franz, Robert
PY - 2020/10
Y1 - 2020/10
N2 - Refractory high entropy alloys are an interesting material class because of their high thermal stability, decent electrical conductivity, and promising mechanical properties at elevated temperature. In the present work, we report on the thermal stability of body-centered cubic MoNbTaVW solid solution thin films that were synthesized by cathodic arc deposition. After vacuum annealing up to 1600 ◦ C, the morphology, chemical composition, crystal structure, and electrical conductivity, as well as the mechanical properties, were analyzed. The observed body-centered cubic MoNbTaVW solid solution phase is stable up to 1500 ◦ C. The evolution of electrical and mechanical properties due to the annealing treatment is discussed based on the observed structural changes of the synthesized thin films.
AB - Refractory high entropy alloys are an interesting material class because of their high thermal stability, decent electrical conductivity, and promising mechanical properties at elevated temperature. In the present work, we report on the thermal stability of body-centered cubic MoNbTaVW solid solution thin films that were synthesized by cathodic arc deposition. After vacuum annealing up to 1600 ◦ C, the morphology, chemical composition, crystal structure, and electrical conductivity, as well as the mechanical properties, were analyzed. The observed body-centered cubic MoNbTaVW solid solution phase is stable up to 1500 ◦ C. The evolution of electrical and mechanical properties due to the annealing treatment is discussed based on the observed structural changes of the synthesized thin films.
KW - arc evaporation
KW - electrical resistance
KW - hardness
KW - high entropy alloy
KW - refractory metal
KW - vacuum annealing
UR - http://www.scopus.com/inward/record.url?scp=85093844572&partnerID=8YFLogxK
U2 - 10.3390/coatings10100941
DO - 10.3390/coatings10100941
M3 - Article
VL - 10
SP - 1
EP - 8
JO - Coatings
JF - Coatings
SN - 2079-6412
IS - 10
M1 - 941
ER -
