incoly 028合金热压缩变形及动态再结晶行为

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International Pub Date : 2025-06-01 DOI:10.1016/j.pnsc.2025.03.013

Zhiqiang Yu , Rui Wang , Leifeng Tuo , Yong Hu , Yan Kang , Jing Fan , Jürgen Eckert , Zhijie Yan

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引用次数: 0

摘要

本文通过实验和模拟两种方法研究了incoly 028合金在热变形过程中的变形和动态再结晶现象。热压缩实验温度范围为1223 K - 1473 K，应变速率为0.1 s−1 ~ 50 s−1。根据热压缩实验，定量建立了incoly 028合金的本构方程和动态再结晶模型。结果表明，两种流体的流动曲线均呈初始增大后逐渐减小或平稳的趋势。DRX分数随变形温度的升高而增加，与光学显微镜（OM）分析结果吻合较好，证实了DRX模型的准确性。根据热压缩过程中应力应变的不均匀分布，将变形试样划分为中心、凸起和端部三个区域，不同变形区域的DRX分数差异较大，OM分析也证实了这一点。

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Deformation and dynamic recrystallization behavior during hot compression of Incoloy 028 alloy

The present study investigates the deformation and dynamic recrystallization (DRX) phenomena of Incoloy 028 alloy during hot deformation through both experimental and simulation approaches. The hot compression experiments were undertaken within the temperatures range of 1223 K–1473 K coupled with strain rates of 0.1 s⁻¹ to 50 s⁻¹. The constitutive equations and the model of dynamic recrystallization for Incoloy 028 alloy were quantitatively constructed according to the hot compression experiments. The results show that flow curves follow a similar trend with an initial increase and followed by a smooth decrease or a plateau. The DRX fraction was found to increase with the deformation temperature, and it were in good agreement with the optical microscopy (OM) analysis, confirming the accuracy of the DRX model. Furthermore, the deformed specimen was partitioned into three regions (center, bulge, and end regions) based on the inhomogeneous distribution of stresses and strains during hot compression, and the DRX fractions in different deformation regions are with a quite difference, which were also confirmed by OM analysis.

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.