通过 EBSD 综合分析揭示镍基锻造超级合金 GH4698 的动态再结晶机制

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters Pub Date : 2024-10-24 DOI:10.1016/j.matlet.2024.137613

Na Li , Shichang Qiao , Xinyu Gao , Fengzhen Wang , Xin Wen , Zhikang Xia , Yongqiang Wang , Shuai Liu , Jinzhe Jiang , Chao Yuan , Yuanbao Shi

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引用次数: 0

摘要

利用 Gleeble 热模拟实验和先进的电子背散射衍射 (EBSD) 表征技术，对锻造超级合金 GH4698 的动态再结晶 (DRX) 机制进行了全面研究。严格的分析阐明了四种不同的再结晶过程：由应变诱导边界迁移（SIBM）引发的非连续动态再结晶（DDRX）；以晶格逐渐旋转为特征的连续动态再结晶（CDRX）；由 MC 型碳化物的齐纳引脚效应驱动的粒子刺激成核（PSN）；以及由孪晶边界和现有位错之间的相互作用促进的孪晶诱导动态再结晶（TDRX）。

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Unraveling dynamic recrystallization mechanisms in Ni-based wrought superalloy GH4698 through comprehensive EBSD analysis

A comprehensive examination of dynamic recrystallization (DRX) mechanisms in wrought superalloy GH4698 has been conducted, leveraging Gleeble thermal simulation experiments and advanced Electron Backscatter Diffraction (EBSD) characterization techniques. Rigorous analysis elucidates four distinct recrystallization processes: Discontinuous Dynamic Recrystallization (DDRX), instigated by strain-induced boundary migration (SIBM); Continuous Dynamic Recrystallization (CDRX), characterized by progressive lattice rotation; Particle Stimulated Nucleation (PSN), driven by the Zener pinning effect of MC-type carbides; and Twin-induced Dynamic Recrystallization (TDRX), facilitated by the interaction between twin boundaries and existing dislocations.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive