Publication:
Characterization of structural and mechanical properties of HfNbTaTiZr refractory high entropy alloy after gas nitriding

Placeholder

School / College / Institute

Organizational Unit

Program

KU Authors

Co-Authors

Alphan, Yunus
Kaba, Mertcan
Cimenoglu, Huseyin

Publication Date

Language

Embargo Status

Journal Title

Journal ISSN

Volume Title

Alternative Title

Abstract

This study was initiated to improve surface hardness and wear resistance of a HfNbTaTiZr refractory high entropy alloy (RHEA) by gas nitriding at a medium temperature (600 °C) for 3 h. Structural characterizations conducted by X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS) equipped scanning electron microscope (SEM) revealed that nitriding led to formation of a 1.5 μm thick surface layer containing precipitates of oxides and nitrides of the alloying elements. Detection of oxides within the surface layer was attributed to the presence residual oxygen in the nitriding atmosphere. Nevertheless, the employed gas nitriding provided remarkably higher scratch resistance compared to the untreated state, as the results of increment in the surface hardness and development of larger compressive residual stress. © 2024 Elsevier Ltd

Source

Publisher

Elsevier

Subject

Chemistry, physical, Materials science, Metallurgy and metallurgical engineering

Citation

Has Part

Source

Intermetallics

Book Series Title

Edition

DOI

10.1016/j.intermet.2024.108279

item.page.datauri

Link

Rights

Copyrights Note

Endorsement

Review

Supplemented By

Referenced By

1

Views

0

Downloads

View PlumX Details