Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature

Increasing service temperature of wrought Ni-based superalloy by increasing alloying degree and fraction of γ′ phase has come to a bottleneck. In present work, an attempt is made to make maximum use of carbide to strengthen Ni-based alloy with a simpler chemical composition. Multiple morphology char...

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Main Authors: He Jiang, Fa Wang, Jianxin Dong
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785423003538
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author He Jiang
Fa Wang
Jianxin Dong
author_facet He Jiang
Fa Wang
Jianxin Dong
author_sort He Jiang
collection DOAJ
description Increasing service temperature of wrought Ni-based superalloy by increasing alloying degree and fraction of γ′ phase has come to a bottleneck. In present work, an attempt is made to make maximum use of carbide to strengthen Ni-based alloy with a simpler chemical composition. Multiple morphology characterization methods and high temperature tensile test show that the newly designed Ni(bal.)-20Cr-0.80C–12Ta (wt%) alloy can be strengthened by TaC and Cr-rich M7C3 carbide and shows good ductility at 800 °C. Phase transformation characteristics detected by differential scanning calorimetry (DSC) and high-temperature confocal laser scanning microscopy (CLSM) images shows that there is a potential for dispersive precipitation of carbide in the alloy to get better mechanical property.
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spelling doaj.art-d6af10b8bbd2418ab2f781f638f37f502023-03-28T06:48:26ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012348604865Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperatureHe Jiang0Fa Wang1Jianxin Dong2Corresponding author.; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaIncreasing service temperature of wrought Ni-based superalloy by increasing alloying degree and fraction of γ′ phase has come to a bottleneck. In present work, an attempt is made to make maximum use of carbide to strengthen Ni-based alloy with a simpler chemical composition. Multiple morphology characterization methods and high temperature tensile test show that the newly designed Ni(bal.)-20Cr-0.80C–12Ta (wt%) alloy can be strengthened by TaC and Cr-rich M7C3 carbide and shows good ductility at 800 °C. Phase transformation characteristics detected by differential scanning calorimetry (DSC) and high-temperature confocal laser scanning microscopy (CLSM) images shows that there is a potential for dispersive precipitation of carbide in the alloy to get better mechanical property.http://www.sciencedirect.com/science/article/pii/S2238785423003538CarbideNanosize particlesHigh temperatureNi-based alloyStructuralMetals and alloys
spellingShingle He Jiang
Fa Wang
Jianxin Dong
Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
Journal of Materials Research and Technology
Carbide
Nanosize particles
High temperature
Ni-based alloy
Structural
Metals and alloys
title Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
title_full Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
title_fullStr Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
title_full_unstemmed Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
title_short Potential for carbide dispersive precipitation strengthening Ni-based alloy for high temperature
title_sort potential for carbide dispersive precipitation strengthening ni based alloy for high temperature
topic Carbide
Nanosize particles
High temperature
Ni-based alloy
Structural
Metals and alloys
url http://www.sciencedirect.com/science/article/pii/S2238785423003538
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