室温下用铝粉一步法制备超细晶粒大块金属板材

IF 2.4 3区 工程技术 Q3 ENGINEERING, MANUFACTURING Journal of Manufacturing Science and Engineering-transactions of The Asme Pub Date : 2023-05-22 DOI:10.1115/1.4062582
A. Pariyar, Viet Q Vu, S. Kailas, L. Toth
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引用次数: 0

摘要

通过粉末冶金(PM)在室温下一步获得具有高强度的完全致密的产品通常是不可能的。然而,这样做将大大降低制造和能源成本。在这项工作中,我们试图通过利用摩擦辅助横向挤压工艺(FALEP)在商业纯铝上实现这一点,该工艺具有通过施加大的剪切应变在一步中从大块或粉末金属生产板材的能力。对完全压实的粉末样品的织构、微观结构和机械性能进行了检查,并与同样通过FALEP获得的大块片材的性能进行了比较。粉末FALEP样品显示出较小的晶粒尺寸和显著较高的强度。基于泰勒型晶格曲率的多晶体模型进行的模拟揭示了所获得材料的织构特征,并与实验结果吻合良好。
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Room-temperature single-step production of ultrafine-grained bulk metallic sheets from Al powder
Obtaining fully dense products with high strength in one step at room temperature by powder metallurgy (PM) is generally not possible. However, doing so would reduce manufacturing and energy costs substantially. In this work, we have attempted to achieve this on commercially pure aluminum by utilizing the friction-assisted lateral extrusion process (FALEP) which has the capability of producing sheets from bulk or powder metal in a single step, by applying large shear strain. The texture, microstructure, and mechanical properties of the fully compacted powder sample were examined and compared to the bulk-sheet's properties obtained also by FALEP. The powder-FALEP sample showed a smaller grain size and significantly higher strength. Simulations carried out by the Taylor-type lattice-curvature-based polycrystal model shed light on the texture characteristics of the obtained materials and were in good agreement with the experiments.
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来源期刊
CiteScore
6.80
自引率
20.00%
发文量
126
审稿时长
12 months
期刊介绍: Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
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