Effect Of Temperature On Hardness And Elastic Modulus In Tungsten-Rhenium Alloy: Study By Dynamics Molecular

Tungsten-Rhenium alloy, nanoindentation, molecular dynamics simulations, mechanical property, temperature, defect mechanisms, hardness, elastic modulus.

ABSTRACT

In this work we performed a series of nanoindentations test on tungsten-rhenium (W-Re) alloys, using Molecular Dynamics simulations and Embedded Atom Method potential. We studied in first the temperature effect from 300K to 2000K on hardness and elastic modulus, we were interested later to defect mechanisms in (W-Re) alloys with a penetration rate of 3Å/ps and the Re concentration is also kept fixed as 5%Re.We found a decreased in reduced elastic modulus Er and the hardness H with the increase in temperature. The found results are in good agreement with the literature.

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