Texture formation during compaction of nanocrystalline metal powder

IF 4.8 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2024-11-18 DOI:10.1016/j.matchar.2024.114567

L.S. Toth , W. Skrotzki , A. Pukenas , Yu. Ivanisenko , N. Yazbek

引用次数: 0

Abstract

Nano-sized powder composed of single crystals of an Au-13 at.%Pd alloy was produced by inert gas condensation (IGC). Uniaxial compaction of the powder was applied in two stages: already within the IGC chamber at 2 GPa pressure, followed by another compaction stage at 6 GPa, outside the chamber. This processing resulted in a weak 〈110〉 fiber texture of the compressed alloy. The crystallographic texture formation during compaction was simulated using different polycrystal plasticity models. The experimental texture evolution was faithfully reproduced using the relaxed constraints polycrystal plasticity model complemented with a grain boundary sliding approach.

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纳米晶金属粉末压制过程中的纹理形成

通过惰性气体冷凝（IGC）技术制备了由 Au-13 at.%Pd 合金单晶组成的纳米级粉末。粉末的单轴压实分为两个阶段：在 IGC 室中以 2 GPa 的压力压实，然后在室外以 6 GPa 的压力压实。这一处理过程使压制合金产生了微弱的〈110〉纤维纹理。使用不同的多晶体塑性模型模拟了压制过程中晶体纹理的形成。使用松弛约束多晶体塑性模型并辅以晶界滑动方法，忠实地再现了实验纹理的演变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.