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Bulk-State Reactions and Improving the Mechanical Properties of Metals through High-Pressure Torsion

Title
Bulk-State Reactions and Improving the Mechanical Properties of Metals through High-Pressure Torsion
Author
장재일
Keywords
bulk-state reaction; diffusion bonding; high-pressure torsion; intermetallic compound; severe plastic deformation
Issue Date
2019-07
Publisher
JAPAN INST METALS & MATERIALS
Citation
MATERIALS TRANSACTIONS, v. 60, no. 7, Page. 1131-1138
Abstract
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.
URI
https://www.jstage.jst.go.jp/article/matertrans/60/7/60_MF201908/_articlehttps://repository.hanyang.ac.kr/handle/20.500.11754/152343
ISSN
1345-9678; 1347-5320
DOI
10.2320/matertrans.MF201908
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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