Supporting data for strengthening and deformation behavior of as-cast CoCrCu1.5MnNi high entropy alloy with micro-/nanoscale precipitation

Sang Hun Shim; Hesam Pouraliakbar; Byung Ju Lee; Yong Keun Kim; Mohsen Saboktakin Rizi; Jun Hyun Han; Sun Ig Hong

doi:10.1016/j.dib.2022.108567

Supporting data for strengthening and deformation behavior of as-cast CoCrCu_1.5MnNi high entropy alloy with micro-/nanoscale precipitation

Data Brief. 2022 Sep 1:45:108567. doi: 10.1016/j.dib.2022.108567. eCollection 2022 Dec.

Authors

Sang Hun Shim¹, Hesam Pouraliakbar¹, Byung Ju Lee¹, Yong Keun Kim¹, Mohsen Saboktakin Rizi¹, Jun Hyun Han¹, Sun Ig Hong¹

Affiliation

¹ Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.

Abstract

The data presented here are related to the research article entitled "Strengthening and deformation behavior of as-cast CoCrCu_1.5MnNi high-entropy alloy (HEA) with micro-/nanoscale precipitation [1]". Non-equimolar CoCrCu_1.5MnNi was cast by the conventional induction melting under a high-purity Ar atmosphere. Scanning electron microscopy equipped with energy dispersive spectroscopy (EDS), and transmission electron microscopy (TEM) were used for micro- and nanostructure characterization. Subsize tensile specimens with two different gage length to width ratio were tested at room and cryogenic temperatures to assess the accuracy of strength and ductility data in the as-cast CoCrCu_1.5MnNi HEAs. The mixing enthalpy (ΔH_mix) versus lattice elastic energy (ΔH_el) criterion was used to predict the stable phases. The data on the effects of microstructural and nanostructural distribution of various phases on mechani-cal properties in the as-cast HEA could be used in designing high entropy alloys with excellent as-cast mechanical performance.

Keywords: As-cast strength; Diffraction intensity line profile; Gage length to width ratio; High entropy alloy (HEA); Precipitate strengthening; Strength/ductility.