期刊
MATERIALS TRANSACTIONS
卷 60, 期 7, 页码 1131-1138出版社
JAPAN INST METALS & MATERIALS
DOI: 10.2320/matertrans.MF201908
关键词
bulk-state reaction; diffusion bonding; high-pressure torsion; intermetallic compound; severe plastic deformation
资金
- National Science Foundation of the United States [DMR-1810343]
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2015R1A5A1037627, 2017R1A2B4012255]
- European Research Council [267464-SPDMETALS]
- National Research Foundation of Korea [2017R1A2B4012255] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This report presents an overview of recent studies demonstrating a bulk-state reaction involving mechanical bonding through the application of high-pressure torsion (HPT) processing on two dissimilar engineering metals. This processing approach was developed by revising the sample set-up and applying the simple procedure of alternately stacking two different metal disks using several different metal combinations. Thus, this report describes the development in microstructure after the bulk-state reactions and the mechanical properties of the HPT-induced Al-Mg, Al-Cu, Al-Fe and Al-Ti alloy systems. A microstructural evaluation confirmed the capability of the HPT procedure for the formation of heterostructures across the disk diameters in these processed alloy systems. Tribology tests and hardness values together with density measurements demonstrated an improved wear resistance and an exceptional specific strength in these alloy systems. The bulk-state reaction by HPT demonstrates a considerable potential for the bonding of dissimilar metals and the fabrication of unique metal systems.
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