Temperature-dependent γ′ kinetics evolutions and elemental partitioning in a novel CoNi-based superalloy: An integrated CALPHAD phase-field experimental study

Kunning Niu; Zan Zhang; Sang Peng; Jiao Song; Ye Shan; Shenglong Wang; Xianshun Wu; Yongsheng Li

doi:10.1039/d6mh00836d

January 1, 2026Materials Horizons

Temperature-dependent γ′ kinetics evolutions and elemental partitioning in a novel CoNi-based superalloy: An integrated CALPHAD phase-field experimental study

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Key Points

This study investigates the kinetics and elemental partitioning of CoNi-based γ/γ′ superalloys to enhance γ′ stability.
Utilized an integrated CALPHAD-Phase-field methodology to analyze the superalloy characteristics.
Conducted experimental validations to support the modeling findings.
Analyzed temperature-dependent behaviors to assess kinetic evolutions.
Achieved improved γ′ stability at elevated temperatures, with significant density reduction observed.
Demonstrated effective elemental partitioning, enhancing overall alloy performance.
Provided quantitative data supporting the proposed methodology for superalloy design.

Implication

Examines γ′ stability in CoNi-based superalloy, indicating potential for turbine blades.

Abstract

Co-Ni-based γ/γ′ superalloys are promising candidates for next-generation turbine blades, yet achieving high γ′ stability and low density remains a significant challenge. This study presents a physics-constrained, integrated CALPHAD-Phase-field methodology...

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Cite This Study

Niu et al. (2026) studied this question.

synapsesocial.com/papers/6a17dd4e3fad632b0f9da168 https://doi.org/10.1039/d6mh00836d

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Temperature-dependent γ′ kinetics evolutions and elemental partitioning in a novel CoNi-based superalloy: An integrated CALPHAD phase-field experimental study

Key Points

Implication

Abstract

Discussion

Cite This Study

Temperature-dependent γ′ kinetics evolutions and elemental partitioning in a novel CoNi-based superalloy: An integrated CALPHAD phase-field experimental study

Key Points

Implication

Abstract

Discussion

Cite This Study

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