• Editors' Suggestion

3d transition-metal high-entropy Invar alloy developed by adjusting the valence-electron concentration

Ziyuan Rao, Aslı Çakır, Özge Özgün, Dirk Ponge, Dierk Raabe, Zhiming Li, and Mehmet Acet
Phys. Rev. Materials 5, 044406 – Published 16 April 2021

Abstract

By considering the valence-electron concentration of 3d transition-metal alloys and compounds, we develop 3d high-entropy alloy Mn12.1Fe34.2Co33.5Ni12.3Cu7.9 with 8.7 electrons per atom, which is identical to that of Fe65Ni35 Invar. We carry out x-ray diffraction, scanning electron microscopy, magnetization, thermal expansion, and elastic modulus measurements, by which we show that the HEA alloy indeed carries Invar properties. This is evidenced particularly by the observed spontaneous volume magnetostriction and the lattice softening covering a broad temperature-range around the ferromagnetic Curie temperature.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 18 December 2020
  • Accepted 8 March 2021

DOI:https://doi.org/10.1103/PhysRevMaterials.5.044406

©2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Ziyuan Rao1,*, Aslı Çakır2, Özge Özgün2, Dirk Ponge1, Dierk Raabe1, Zhiming Li1, and Mehmet Acet3,†

  • 1Max-Planck-Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany
  • 2Muğla Sıtkı Koçman University, Department of Metallurgical and Materials Engineering, 48000 Muğla, Turkey
  • 3Faculty of Physics and Center for Nanointegration (CENIDE), Universität Duisburg-Essen, D-47048 Duisburg, Germany

  • *z.rao@mpie.de
  • mehmet.acet@uni-due.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 5, Iss. 4 — April 2021

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Materials

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×