Next Article in Journal
Mechanism Design with Singularity Avoidance of Crystal-Inspired Deployable Structures
Previous Article in Journal
Field-Induced Magnetic Phase Transitions and Rich Phase Diagram of HoMnO3 Single Crystal
Previous Article in Special Issue
An Accurate Method for Crystallographic Reconstruction of Parent Austenite from Inherited Martensite in a Low-Alloy Steel
Open AccessArticle

Comparing Cyclic Tension-Compression Effects on CoCrFeMnNi High-Entropy Alloy and Ni-Based Superalloy

1
Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
2
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
3
High Entropy Materials Center, National Tsing Hua University, Hsinchu 30013, Taiwan
4
J-PARC Center, Japan Atomic Energy Agency, 2–4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
5
Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Korea
6
Department of Materials Science and Engineering, Indian Institute of Technology, New Delhi 110016, India
*
Authors to whom correspondence should be addressed.
Crystals 2019, 9(8), 420; https://doi.org/10.3390/cryst9080420
Received: 12 July 2019 / Revised: 1 August 2019 / Accepted: 8 August 2019 / Published: 13 August 2019
  |  
PDF [1635 KB, uploaded 22 August 2019]
  |  

Abstract

An equal-molar CoCrFeMnNi, face-centered-cubic (fcc) high-entropy alloy (HEA) and a nickel-based superalloy are studied using in situ neutron diffraction experiments. With continuous measurements, the evolution of diffraction peaks is collected for microscopic lattice strain analyses. Cyclic hardening and softening are found in both metallic systems. However, as obtained from the diffraction-peak-width evolution, the underneath deformation mechanisms are quite different. The CoCrFeMnNi HEA exhibits distinct lattice strain and microstructure responses under tension-compression cyclic loadings. View Full-Text
Keywords: in-situ neutron diffraction; low-cycle fatigue; high entropy alloy; Ni-based superalloy in-situ neutron diffraction; low-cycle fatigue; high entropy alloy; Ni-based superalloy
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Lam, T.-N.; Chou, Y.-S.; Chang, Y.-J.; Sui, T.-R.; Yeh, A.-C.; Harjo, S.; Lee, S.Y.; Jain, J.; Lai, B.-H.; Huang, E.-W. Comparing Cyclic Tension-Compression Effects on CoCrFeMnNi High-Entropy Alloy and Ni-Based Superalloy. Crystals 2019, 9, 420.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top