Influence of Preheating on the Microstructure of a Hot Extruded Nickel-Based Superalloy.

Jun-Cheng Zhu, Yong-Cheng Lin, Yun-Han Ling, Shu-Xin Li, Zi-Jian Chen, Yu-Liang Qiu

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Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Jun-Cheng ZhuSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Yong-Cheng LinSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.ORCID 0000-0001-9033-1564

Yun-Han LingChina Academy of Machinery Beijing Research Institute of Mechanical & Electrical Technology Co., Ltd., Beijing 100083, China.

Shu-Xin LiSchool of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China.

Zi-Jian ChenSchool of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Yu-Liang QiuRongcheng Huadong Metal-Forming Machinery Co., Ltd., Rongcheng 264300, China.

Funding

aishan Industrial Experts Programme tscx202211087Hunan Provincial Innovation Foundation for Postgraduate CX20210216innovation project for graduate students of Central South University 1053320212786National Key Research and Development Program of China 2022YFB3706902

6 · The paper itself

Abstract

Some studies have reported the microstructure evolution of nickel-based superalloys during isothermal forging (IF). However, most of them have not taken into account the microstructure evolution during the preheating stage in manufacturing processes. Investigating the microstructure evolution mechanisms during preheating of nickel-based superalloy can provide a more accurate characterization of the initial microstructures prior to IF. In this study, the evolution of grain structure, participation phase, and twins in a hot extruded nickel-based superalloy are examined during heat treatment at the temperature range of 1050~1140 °C and 5~180 min. Also, the interaction mechanisms among the above microstructures are analyzed. Experimental results demonstrate that higher temperature significantly accelerates the dissolution of the primary γ' (γ'

Indexed as

dissolution kineticsgrain boundarynickel-based superalloypreheatingprimary γ′ phase

Identifiers

PMID40271658

DOI10.3390/ma18071478

PMCPMC11989429

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