Stress-strain data of strain jump tests for Fe50Mn25Cr15Co10Nx (x=0~1.6) high entropy alloys

Published: 24 December 2020| Version 1 | DOI: 10.17632/vbvtxn7cs4.1
Contributors:
Byung Ju Lee,
Jae Sook Song,
Won Jin Moon,
Sun Ig Hong

Description

The strain rate jump tests were conducted by changing the strain rate between 10−3s−1 and 10−2s−1 to measure the strain rate sensitivities of nitrogen-free and nitrogen containing Fe50Mn25Cr15Co10Nx (x=0~1.6) high entropy alloys. The strain rate sensitivity m was calculated based on the change of the flow stress obtained from the strain rate jump tests using the following equation, m =(∂ ln σ)/(∂ ln έ), where σ is the flow stress and έ is the strain rate. The strain rate sensitivity (SRS) increased significantly with increase of nitrogen content. Interestingly, the strain rate sensitivity (SRS) increased significantly with increase of nitrogen content.

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Steps to reproduce

Tensile testing should be performed at an engineering strain rate of 10-2s-1 ~10-3s-1 at room temperature.