Track-Rex:A universal toolbox for tracking recrystallization nucleation and grain growth behaviors in polycrystalline materials

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外文摘要：Recrystallization annealing is widely used to tailor the microstructure and enhance the performance of cold-deformed metallic materials.However,the underlying recrystallization mechanisms are debated,even with the use of cutting-edge characterization techniques.Here,we develop a Track-Rex toolbox to analyze quasi-in-situ electron backscatter diffraction(EBSD)datasets of two magnesium(Mg)alloys dur-ing static recrystallization via grain correlation.The results show that the recrystallized grains do not always grow;instead,they can shrink or even be consumed.This is attributed to the presence of newly formed recrystallized grains that possess a growth advantage over the old recrystallized grains.The rare earth containing Mg-2.4Zn-0.2Ce wt.％(ZE20)alloy exhibits a higher nucleation activity in the shear bands compared to the commercial Mg-3Al-1 Zn(AZ31)alloy.Regardless of the nucleation timing and sites,re-crystallized grains in the ZE20 alloy show consistent off-basal orientations,serving as the origin of the rare earth texture.Moreover,the off-basal texture of these recrystallized grains is further strengthened through preferential growth during subsequent annealing.On the contrary,the recrystallized grains in the AZ31 exhibit scattered basal orientations that grow uniformly,resulting in a weak basal texture.

外文关键词：

Grain correlationGrain trackingRecrystallizationTextureMg alloys

作者：

Xun Zeng、Haoran Yi、Zhuoran Zeng、Liang Yuan、Sangbong Yi、Junheng Gao、Mark Rainforth、Dikai Guan

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作者单位：

Department of Mechanical Engineering,University of Southampton,Southampton,SO17 1BJ,UK

College of Engineering and Computer Science,Australian National University,ACT 2601,Australia

College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi'an,710021,China

Institute of Materials and Process Design,Helmholtz-Zentrum Hereon,Geesthacht,21502,Germany

Department of Materials Science and Engineering,University of Sheffield,Sheffield,S1 3JD,UK

Institute for Carbon Neutrality,University of Science and Technology Beijing,No.30 Xueyuan Road,Haidian District,Beijing,100083,China

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基金：

UK Research and Innovation(UKRI)Future Leaders FellowshipEngineering and Physical Sciences Research CouncilRoyal Society International Exchanges 2021 Cost ShareAustralian National University Future FellowshipNational Natural Science Foundation of China

项目编号：

MR/T019123/2EP/L025213/1IEC\NSFC\211323U22A20187

出版年：

2024

DOI：

10.1016/j.jmst.2024.02.013

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCD

影响因子：0.657

ISSN：1005-0302

年,卷(期)：2024.197(30)