NDLI: Microstructure and Mechanical Properties of Copper Processed by Twist Extrusion with a Reduced Twist-Line Slope

Content Provider	Springer Nature Link
Author	Latypov, Marat I. Yoon, Eun Yoo Lee, Dong Jun Kulagin, Roman Beygelzimer, Yan Seyed Salehi, Majid Kim, Hyoung Seop
Copyright Year	2013
Abstract	Pure copper processed by a twist extrusion process with a reduced twist-line slope is investigated. Twist extrusion is a severe plastic deformation technique which is promising for scale-up because it allows for processing of relatively large metallic bars. On the way to commercialization, decreasing costs associated with processing is critical for twist extrusion. As one of the measures, reducing the twist-line slope—an important geometrical feature of twist extrusion—can be advantageous in terms of processing costs. The current study seeks to elucidate effects of reducing the twist-line slope on the microstructure, mechanical properties, and their heterogeneity in the processed metal, which were unclear because most of the previous research has focused on twist extrusion with high twist-line slopes (e.g., 60 deg). Results of the present study suggest that reducing the twist-line slope moderates grain refinement and limits improvement of mechanical properties of the twist-extruded metal. These findings are discussed in terms of the shear strain reversal which is inherent in the process.
Starting Page	2232
Ending Page	2241
Page Count	10
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	45
Issue Number	4
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2014-01-06
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

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