journal article·2023-05Open access

Carbon Segregation in CoCrFeMnNi High‐Entropy Alloy Driven by High‐Pressure Torsion at Room and Cryogenic Temperatures

Yemao Lu, Horst Hahn, Yulia Ivanisenko

Advanced Engineering Materials· Volume 25· Issue 9

Abstract

Herein, a CoCrFeMnNi high‐entropy alloy with reduced Cr content and with the addition of 2 at% C interstitial is processed via high‐pressure torsion (HPT) under 6.5 GPa by three turns at room and cryogenic temperatures. The microstructure is investigated by transmission electron microscopy (TEM) and atom probe tomography (APT). The results indicate that C atoms segregate at the boundaries of the nanograins in the sample processed at room temperature, while the sample processed at cryogenic temperature does not show any notable segregations of carbon.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Advanced materials and composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany

Karlsruhe Nano-Micro Facility Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany

Funding

China Scholarship Council

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