High temperature oxidation and corrosion properties of high entropy superalloys

Te Kang Tsao; An Chou Yeh; Chen Ming Kuo; Hideyuki Murakami

doi:10.3390/e18020062

High temperature oxidation and corrosion properties of high entropy superalloys

Te Kang Tsao, An Chou Yeh^*, Chen Ming Kuo, Hideyuki Murakami

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

The present work investigates the high temperature oxidation and corrosion behaviour of high entropy superalloys (HESA). A high content of various solutes in HESA leads to formation of complex oxides, however the Cr and Al activities of HESA are sufficient to promote protective chromia or alumina formation on the surface. By comparing the oxidation and corrosion resistances of a Ni-based superalloy-CM247LC, Al₂O₃-forming HESA can possess comparable oxidation resistance at 1100 °C, and Cr₂O₃-forming HESA can exhibit superior resistance against hot corrosion at 900 °C. This work has demonstrated the potential of HESA to maintain surface stability in oxidizing and corrosive environments.

Original language	English
Article number	62
Journal	Entropy
Volume	18
Issue number	2
DOIs	https://doi.org/10.3390/e18020062
Publication status	Published - 2016
Externally published	Yes

Keywords

Alloy
Hot corrosion
Oxidation
Superalloys

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.3390/e18020062

Cite this

@article{03b5d5ba682a490fb5e29dabc66f74c9,

title = "High temperature oxidation and corrosion properties of high entropy superalloys",

abstract = "The present work investigates the high temperature oxidation and corrosion behaviour of high entropy superalloys (HESA). A high content of various solutes in HESA leads to formation of complex oxides, however the Cr and Al activities of HESA are sufficient to promote protective chromia or alumina formation on the surface. By comparing the oxidation and corrosion resistances of a Ni-based superalloy-CM247LC, Al2O3-forming HESA can possess comparable oxidation resistance at 1100 °C, and Cr2O3-forming HESA can exhibit superior resistance against hot corrosion at 900 °C. This work has demonstrated the potential of HESA to maintain surface stability in oxidizing and corrosive environments.",

keywords = "Alloy, Hot corrosion, Oxidation, Superalloys",

author = "Tsao, {Te Kang} and Yeh, {An Chou} and Kuo, {Chen Ming} and Hideyuki Murakami",

note = "Publisher Copyright: {\textcopyright} 2016 by the authors.",

year = "2016",

doi = "10.3390/e18020062",

language = "English",

volume = "18",

journal = "Entropy",

issn = "1099-4300",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "2",

}

TY - JOUR

T1 - High temperature oxidation and corrosion properties of high entropy superalloys

AU - Tsao, Te Kang

AU - Yeh, An Chou

AU - Kuo, Chen Ming

AU - Murakami, Hideyuki

PY - 2016

Y1 - 2016

N2 - The present work investigates the high temperature oxidation and corrosion behaviour of high entropy superalloys (HESA). A high content of various solutes in HESA leads to formation of complex oxides, however the Cr and Al activities of HESA are sufficient to promote protective chromia or alumina formation on the surface. By comparing the oxidation and corrosion resistances of a Ni-based superalloy-CM247LC, Al2O3-forming HESA can possess comparable oxidation resistance at 1100 °C, and Cr2O3-forming HESA can exhibit superior resistance against hot corrosion at 900 °C. This work has demonstrated the potential of HESA to maintain surface stability in oxidizing and corrosive environments.

AB - The present work investigates the high temperature oxidation and corrosion behaviour of high entropy superalloys (HESA). A high content of various solutes in HESA leads to formation of complex oxides, however the Cr and Al activities of HESA are sufficient to promote protective chromia or alumina formation on the surface. By comparing the oxidation and corrosion resistances of a Ni-based superalloy-CM247LC, Al2O3-forming HESA can possess comparable oxidation resistance at 1100 °C, and Cr2O3-forming HESA can exhibit superior resistance against hot corrosion at 900 °C. This work has demonstrated the potential of HESA to maintain surface stability in oxidizing and corrosive environments.

KW - Alloy

KW - Hot corrosion

KW - Oxidation

KW - Superalloys

UR - http://www.scopus.com/inward/record.url?scp=84960410830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84960410830&partnerID=8YFLogxK

U2 - 10.3390/e18020062

DO - 10.3390/e18020062

M3 - Article

AN - SCOPUS:84960410830

SN - 1099-4300

VL - 18

JO - Entropy

JF - Entropy

IS - 2

M1 - 62

ER -

High temperature oxidation and corrosion properties of high entropy superalloys

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this