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Scaled-Up Fabrication of Thin-Walled ZK60 Tubing using Shear Assisted Processing and Extrusion (ShAPE)

Conference ·
Shear Assisted Processing and Extrusion (ShAPE) has been scaled-up and applied to direct extrusion of thin-walled magnesium tubing. Using ShAPE, billets of ZK60A-T5 were directly extruded into round tubes having an outer diameter of 50.8 mm and wall thickness of 1.52 mm. The severe shearing conditions inherent to ShAPE resulted in microstructural refinement with an average grain size of 3.8μm measured at the midpoint of the tube wall. Tensile testing per ATSM E-8 on specimens oriented parallel to the extrusion direction gave an ultimate tensile strength of 254.4 MPa and elongation of 20.1%. Specimens tested perpendicular to the extrusion direction had an ultimate tensile strength of 297.2 MPa and elongation of 25.0%. Due to material flow effects resulting from the simultaneous linear and rotational shear intrinsic to ShAPE, ram force and electrical power consumption during extrusion were just 40 kN and 11.5 kW respectively. This represents a significant reduction in ram force and power consumption compared to conventional extrusion. As such, there is potential for ShAPE to offer a scalable, lower cost extrusion option with potentially improved bulk mechanical properties.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1374650
Report Number(s):
PNNL-SA-121164; VT0505000
Country of Publication:
United States
Language:
English

References (23)

A preliminary study on the feasibility of friction stir back extrusion journal May 2012
ZK60 alloy processed by ECAP: Microstructural, physical and mechanical characterization journal January 2014
Forming of magnesium alloy microtubes in the fabrication of biodegradable stents journal October 2014
Reducing Vehicle Weight and Improving U.S. Energy Efficiency Using Integrated Computational Materials Engineering journal August 2012
Producing bulk ultrafine-grained materials by severe plastic deformation journal April 2006
Dynamic recrystallization: plasticity enhancing structural development journal September 2004
Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing journal June 2003
The science, technology, and applications of magnesium journal September 1998
Yield asymmetry design of magnesium alloys by integrated computational materials engineering journal November 2013
Superior mechanical properties of ZK60 mg alloy processed by equal channel angular pressing and rolling journal April 2015
Microstructural Characterization of Pure Copper Tubes Produced by a Novel Method Friction Stir Back Extrusion journal January 2014
Friction Consolidation Processing of n-Type Bismuth-Telluride Thermoelectric Material journal April 2016
Microstructure and Properties of Pure Mg/ZK60 Laminate Processed by Accumulative Roll Bonding journal May 2010
Microstructure, texture evolution, mechanical properties and corrosion behavior of ECAP processed ZK60 magnesium alloy for biodegradable applications journal September 2014
Production of Wire From AA7277 Aluminum Chips via Friction-Stir Extrusion (FSE) journal April 2014
The role of the magnesium industry in protecting the environment journal November 2001
Microstructural instability and strength of an AZ31 Mg alloy after severe plastic deformation journal November 2004
Applications of Magnesium Alloys for Aerospace Structure Systems journal August 2000
Microstructure and high tensile ductility of ZK60 magnesium alloy processed by cyclic extrusion and compression journal May 2009
Development of dynamic recrystallization theory journal December 2004
Enhanced ductility in strongly textured magnesium produced by equal channel angular processing journal February 2004
Microstructure evolutions and mechanical properties of tubular aluminum produced by friction stir back extrusion journal January 2015
Magnesium journal April 2001

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