期刊论文

Jian, Wu-Rong

英文

Applied Physics Letters

0003-6951

2021

119

12

121904

10.1063/5.0064299

The authors thank Dr. Saeed Zare Chavoshi for helpful discussions on the solid–liquid coexistence method. W.R.J. and I.J.B. would like to acknowledge support from the Office of Naval Research under Grant No. N000141712810. Use was made of computational facilities purchased with funds from the National Science Foundation (No. CNS-1725797) and administered by the Center for Scientific Computing (CSC). The CSC is supported by the California NanoSystems Institute and the Materials Research Science and Engineering Center (MRSEC; No. NSF DMR 1720256) at UC Santa Barbara.

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Medium- to high-entropy alloys are characterized by fluctuations in chemical composition, i.e., lattice distortion (LD) and chemical short-range ordering (CSRO). However, their roles in the melting of these alloys are still unclear. Using a combination of molecular dynamics and x-ray diffraction simulations, we investigate the effects of LD and CSRO on the melting of single crystalline CoCrNi, a medium entropy alloy (MEA). LD accelerates the melting process and reduces the melting temperature by lowering the energy barrier of the nucleation of ...