Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep

In this work, the effect of the Ru element on the γ′-phase evolution and deformation mechanism in the fourth-generation Ni-based single-crystal superalloy was investigated. Results show that the Ru element alters the distribution coefficient of other elements in the alloy to produce reverse partitio...

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Autores principales: Emokpaire, Stephen Okhiai, Wang, Nan, Liu, Jide, Zhu, Chongwei, Wang, Xinguang, Li, Jinguo, Zhou, Yizhou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10096174/
https://www.ncbi.nlm.nih.gov/pubmed/37049026
http://dx.doi.org/10.3390/ma16072732
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author Emokpaire, Stephen Okhiai
Wang, Nan
Liu, Jide
Zhu, Chongwei
Wang, Xinguang
Li, Jinguo
Zhou, Yizhou
author_facet Emokpaire, Stephen Okhiai
Wang, Nan
Liu, Jide
Zhu, Chongwei
Wang, Xinguang
Li, Jinguo
Zhou, Yizhou
author_sort Emokpaire, Stephen Okhiai
collection PubMed
description In this work, the effect of the Ru element on the γ′-phase evolution and deformation mechanism in the fourth-generation Ni-based single-crystal superalloy was investigated. Results show that the Ru element alters the distribution coefficient of other elements in the alloy to produce reverse partitioning behavior, which leads to a difference in microstructure between 0Ru and 3Ru. The addition of Ru triggered the incubation period before the beginning of the primary creep stage, which depends on the creep temperature and stress during creep deformation. TEM results revealed that Ru addition inhibits the slip system {111}<112> at medium-temperature (760–1050 °C) and high-stress (270–810 MPa) creep, which brings a considerably low creep rate and high creep life to the Ru-containing alloy.
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spelling pubmed-100961742023-04-13 Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep Emokpaire, Stephen Okhiai Wang, Nan Liu, Jide Zhu, Chongwei Wang, Xinguang Li, Jinguo Zhou, Yizhou Materials (Basel) Article In this work, the effect of the Ru element on the γ′-phase evolution and deformation mechanism in the fourth-generation Ni-based single-crystal superalloy was investigated. Results show that the Ru element alters the distribution coefficient of other elements in the alloy to produce reverse partitioning behavior, which leads to a difference in microstructure between 0Ru and 3Ru. The addition of Ru triggered the incubation period before the beginning of the primary creep stage, which depends on the creep temperature and stress during creep deformation. TEM results revealed that Ru addition inhibits the slip system {111}<112> at medium-temperature (760–1050 °C) and high-stress (270–810 MPa) creep, which brings a considerably low creep rate and high creep life to the Ru-containing alloy. MDPI 2023-03-29 /pmc/articles/PMC10096174/ /pubmed/37049026 http://dx.doi.org/10.3390/ma16072732 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Emokpaire, Stephen Okhiai
Wang, Nan
Liu, Jide
Zhu, Chongwei
Wang, Xinguang
Li, Jinguo
Zhou, Yizhou
Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title_full Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title_fullStr Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title_full_unstemmed Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title_short Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep
title_sort effect of ru on deformation mechanism and microstructure evolution of single-crystal superalloys under medium-temperature and high-stress creep
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10096174/
https://www.ncbi.nlm.nih.gov/pubmed/37049026
http://dx.doi.org/10.3390/ma16072732
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