Microscopic phase-field study on L12 interface properties of Ni75Al18Cr7 superalloy

Hu, Hailei; Wu, Dong Yang; Zhang, Mingyi; Li, Mengjia; Chen, Zheng

doi:10.1016/j.jallcom.2021.162420

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…[7][8][9][10][11][12] APB is one of five types of stable stacking faults in ordered phases, [6,[13][14][15][16] and it occurs in the fields of material forming, [17] material processing, [1,2,5,8,18] and heat treatment. [17,19] Thus, it is generally distinguished that the APB formed with mechanical force is a thermal type, whereas that formed without mechanical force. [17,20] As a nanoscale planar defect, the thickness of the APB ranges from one to several atomic layers, and the layer atoms are not stacked periodically crystallographically.…”

Section: Introductionmentioning

confidence: 99%

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study

Wang,

Ma,

et al. 2024

Adv Eng Mater

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The atomic atmosphere and formation mechanism of the antiphase domain boundary (APB) may depend on the environmental variables of the phase transformation for the L12‐structural Ni3Al phase, which is the first important precipitate phase for Ni‐based superalloys. In this study, a discrete phase field method was used to reproduce the complete formation process of an APB without preset restrictions. Numerical calculations were performed to classify the atomic atmosphere, and its formation mechanism was revealed by calculating and analyzing the functional properties of the driving force. The formation process showed that four types of antiphase domains survived to form the APB. The numerical calculation results demonstrate that the atomic atmosphere has the same temperature dependence for hypo‐stoichiometric, stoichiometric, and hyper‐stoichiometric systems. However, Al plays two opposite roles in influencing the atomic atmosphere according to the changes in the alloy system. The positive and negative values of the driving force determine whether the atomic atmosphere is segregated or depleted, and the magnitude of the absolute value determines the atomic atmosphere level. This atomic‐scale study of nano‐scale ordered domain boundaries can provide theoretical information for further understanding of these and similar interfaces in ordered precipitation‐strengthened phases.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study

Wang,

Ma,

et al. 2024

Adv Eng Mater

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Development of Phase-Field Modeling in Materials Science in China: A Review

Zhao,

Xing,

Zhang

et al. 2023

Acta Metall. Sin. (Engl. Lett.)

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Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

et al. 2022

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Precipitation hardening stainless steels have attracted extensive interest due to their distinguished mechanical properties. However, it is necessary to further uncover the internal quantitative relationship from the traditional standpoint based on the statistical perspective. In this review, we summarize the latest research progress on the relationships among the composition, microstructure, and properties of precipitation hardened stainless steels. First, the influence of general chemical composition and its fluctuation on the microstructure and properties of PHSS are elaborated. Then, the microstructure and properties under a typical heat treatment regime are discussed, including the precipitation of B2-NiAl particles, Cu-rich clusters, Ni3Ti precipitates, and other co-existing precipitates in PHSS and the hierarchical microstructural features are presented. Next, the microstructure and properties after the selective laser melting fabricating process which act as an emerging technology compared to conventional manufacturing techniques are also enlightened. Thereafter, the development of multi-scale simulation and machine learning (ML) in material design is illustrated with typical examples and the great concerns in PHSS research are presented, with a focus on the precipitation techniques, effect of composition, and microstructure. Finally, promising directions for future precipitation hardening stainless steel development combined with multi-scale simulation and ML methods are prospected, offering extensive insight into the innovation of novel precipitation hardening stainless steels.

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Microscopic phase-field study on L12 interface properties of Ni75Al18Cr7 superalloy

Cited by 3 publications

References 38 publications

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study

Development of Phase-Field Modeling in Materials Science in China: A Review

Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

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Microscopic phase-field study on L12 interface properties of Ni75Al18Cr7 superalloy

Cited by 3 publications

References 38 publications

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni3Al: A Phase‐Field Study

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni3Al: A Phase‐Field Study

Development of Phase-Field Modeling in Materials Science in China: A Review

Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

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Product

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The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study

The Atomic Atmosphere at the Antiphase Domain Boundary in Ni₃Al: A Phase‐Field Study