High-temperature oxidation behaviors and mechanisms in newly designed L12-strengthened high-entropy alloys

Jinxiong Hou; Yi Tan; Shaofei Liu; Jianyang Zhang; Weicheng Xiao; Haojie Kong; Qian Li; Boxuan Cao; Junhua Luan; Yilu Zhao; Jijung Kai; Tao Yang

doi:10.1016/j.corsci.2022.110665

Author(s)

Jinxiong Hou
Yi Tan
Qian Li
Junhua Luan
Yilu Zhao
Jijung Kai
Tao Yang

Related Research Unit(s)

Detail(s)

Original language	English
Article number	110665
Journal / Publication	Corrosion Science
Volume	208
Online published	14 Sept 2022
Publication status	Published - Nov 2022

Link(s)

DOI	DOI https://doi.org/10.1016/j.corsci.2022.110665 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85138060825&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(44a94116-59e9-408d-924e-47426b427145).html

Abstract

The oxidation behaviors of a newly-designed L1₂-strengthened multi-component Ni-Co-Fe-Cr-Al-Ti-Nb system were studied at 800 ℃, where the synergistic alloying effects of Ti, Nb, and Cr on the oxidation resistance were uncovered. The findings show that the doping of Ti facilitates the outward diffusion of metal cations and inward diffusion of oxygen ions through the Cr₂O₃ and Al₂O₃ scales, deteriorating the oxidation resistance. By substituting the Ti with Nb, a continuous and dense Al₂O₃ scale was potentially promoted benefiting from the “unlocked” Al atoms from the L1₂ particles. The increased additions of Cr and Nb contribute to the improved oxidation resistance.

Research Area(s)

Coherent precipitation strengthening, High-entropy alloys, Mechanical properties, Multi-component intermetallic, Oxidation resistance

Citation Format(s)

[ RIS ] [ BibTeX ]

High-temperature oxidation behaviors and mechanisms in newly designed L1₂-strengthened high-entropy alloys. / Hou, Jinxiong; Tan, Yi; Liu, Shaofei et al.
In: Corrosion Science, Vol. 208, 110665, 11.2022.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Hou, J, Tan, Y, Liu, S , Zhang, J , Xiao, W , Kong, H, Li, Q, Cao, B, Luan, J, Zhao, Y , Kai, J & Yang, T 2022, 'High-temperature oxidation behaviors and mechanisms in newly designed L1₂-strengthened high-entropy alloys', Corrosion Science, vol. 208, 110665. https://doi.org/10.1016/j.corsci.2022.110665

Hou, J., Tan, Y., Liu, S., Zhang, J., Xiao, W., Kong, H., Li, Q., Cao, B., Luan, J., Zhao, Y., Kai, J., & Yang, T. (2022). High-temperature oxidation behaviors and mechanisms in newly designed L1₂-strengthened high-entropy alloys. Corrosion Science, 208, Article 110665. https://doi.org/10.1016/j.corsci.2022.110665

Hou J, Tan Y, Liu S , Zhang J , Xiao W , Kong H et al. High-temperature oxidation behaviors and mechanisms in newly designed L1₂-strengthened high-entropy alloys. Corrosion Science. 2022 Nov;208:110665. Epub 2022 Sept 14. doi: 10.1016/j.corsci.2022.110665

Hou, Jinxiong ; Tan, Yi ; Liu, Shaofei et al. / High-temperature oxidation behaviors and mechanisms in newly designed L1₂-strengthened high-entropy alloys. In: Corrosion Science. 2022 ; Vol. 208.