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Dynamic recrystallization of a wrought magnesium alloy: Grain size and texture maps and their application for mechanical behavior predictions

Journal Article · · Materials & Design
 [1];  [1];  [2];  [3];  [4];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States). Materials Science and Engineering
  2. Hunan Univ. (China). Materials Science and Engineering
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  4. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
Effect of dynamic recrystallization (DRX) on the grain refinement and texture modification was studied by conducting a series of hot compression on AZ31B Mg alloy. Processing-grain size-texture maps were established as a function of temperature, strain rate, strain, and the Zener-Hollomon parameter (Z). Moreover, influence of simultaneous changes in the grain size and texture on tensile yield strength and ductility of the hot-worked Mg alloy was studied using the grain size and texture maps established. The processing-grain size map showed that the DRX grain size decreased with the increase in Z, also revealing various characteristics ranging from a grain growth, grain refinement, to a bimodal distribution of ultrafine grains and partially recrystallized grains. The effect of twinning on the grain refinement was also evident at high Z conditions. The processing-texture map revealed that the initial fiber texture was altered significantly to a shear, off-normal, or extension-twin texture with the increase in Z. The Schmid-factor maps were calculated to identify a dominant deformation mode during a subsequent tensile deformation of the hot-worked samples. Finally, a corresponding Hall-Petch relationship for each dominant deformation mode was used to establish tensile yield-strength maps, which agree well with the measured data.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357; AC05-00OR22725
OSTI ID:
1788243
Alternate ID(s):
OSTI ID: 1819528
Journal Information:
Materials & Design, Journal Name: Materials & Design Vol. 202; ISSN 0264-1275
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (66)

Slip, twinning, and fracture in hexagonal close-packed metals journal March 1981
Magnesium and its alloys applications in automotive industry journal November 2007
Microstructural Development during Hot Working of Mg-3Al-1Zn journal July 2007
Transient Heat and Material Flow Modeling of Friction Stir Processing of Magnesium Alloy using Threaded Tool journal September 2011
Correlation Between Texture Variation and Transverse Tensile Behavior of Friction-Stir-Processed AZ31 Mg Alloy journal March 2012
{112̄2}〈23〉 Slip system in magnesium journal July 1973
Deformation mechanisms in h.c.p. metals at elevated temperatures—II. Creep behavior of a Mg-0.8% Al solid solution alloy journal June 1982
A controlling factor for dynamic recrystallisation journal January 1975
Magnesium journal April 2001
Grain refining of magnesium alloy AZ31 by rolling journal September 2003
Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60 journal April 2001
Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing journal June 2003
Influence of grain size on the compressive deformation of wrought Mg–3Al–1Zn journal October 2004
Texture evolution of five wrought magnesium alloys during route A equal channel angular extrusion: Experiments and simulations journal June 2005
Influence of texture and grain size on work hardening and ductility in magnesium-based alloys processed by ECAP and rolling journal September 2006
Validating a polycrystal model for the elastoplastic response of magnesium alloy AZ31 using in situ neutron diffraction journal October 2006
Twinning and texture development in two Mg alloys subjected to loading along three different strain paths journal June 2007
Non-Schmid behaviour during secondary twinning in a polycrystalline magnesium alloy journal January 2008
Microstructure, texture and residual stress in a friction-stir-processed AZ31B magnesium alloy journal May 2008
Mechanical anisotropy and deep drawing behaviour of AZ31 and ZE10 magnesium alloy sheets journal January 2010
Mechanical behavior and microstructural evolution of a Mg AZ31 sheet at dynamic strain rates journal May 2010
Deformation mechanisms and plastic anisotropy in magnesium alloy AZ31 journal July 2011
A synchrotron X-ray diffraction study on the phase transformation kinetics and texture evolution of a TRIP steel subjected to torsional loading journal November 2012
Evolution of texture and microstructure during hot torsion of a magnesium alloy journal August 2013
Influence of texture on Hall–Petch relationships in an Mg alloy journal December 2014
Effect of grain size on slip activity in pure magnesium polycrystals journal February 2015
Prominent role of basal slip during high-temperature deformation of pure Mg polycrystals journal February 2015
Origin of the twinning to slip transition with grain size refinement, with decreasing strain rate and with increasing temperature in magnesium journal April 2015
Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B journal June 2005
Crystal plasticity analysis of texture development in magnesium alloy during extrusion journal December 2011
Effects of extrusion ratio on the microstructure and mechanical properties of AZ31 Mg alloy journal February 2007
3D modeling of material flow in friction stir welding under different process parameters journal March 2007
Hall-Petch relationship in Mg alloys: A review journal February 2018
Twinning effects on the hot deformation behavior of AZ31 Mg alloy journal August 2016
A review of dynamic recrystallization phenomena in metallic materials journal December 2016
Mechanical properties and microstructure of AZ31 Mg alloy processed by two-step equal channel angular extrusion journal August 2005
Internal strain and texture evolution during deformation twinning in magnesium journal June 2005
Crystallographic texture evolution of three wrought magnesium alloys during equal channel angular extrusion journal November 2005
Mechanical behaviour and microstructural evolution of magnesium alloy AZ31 in tension at different temperatures journal May 2006
Effect of extrusion conditions on grain refinement and fatigue behaviour in magnesium alloys journal October 2006
Dynamic recrystallization in AZ31 magnesium alloy journal May 2007
Twinning and the ductility of magnesium alloys journal August 2007
Stretch formability of AZ31 Mg alloy sheets at different testing temperatures journal September 2007
Dynamic recrystallization of Mg and Mg–Y alloys: Crystallographic texture development journal June 2008
Grain size effects on the tensile properties and deformation mechanisms of a magnesium alloy, AZ31B, sheet journal July 2008
Developing grain refinement and superplasticity in a magnesium alloy processed by high-pressure torsion journal August 2008
Dynamic recrystallization during high temperature deformation of magnesium journal August 2008
Recrystallization mechanism of as-cast AZ91 magnesium alloy during hot compressive deformation journal December 2009
High strain rate superplasticity in friction stir processed ultrafine grained Mg–Al–Zn alloys journal February 2013
Evolution in hardness and texture of a ZK60A magnesium alloy processed by high-pressure torsion journal April 2015
Enhanced ductility in strongly textured magnesium produced by equal channel angular processing journal February 2004
Relationship between grain size and Zener–Holloman parameter during friction stir processing in AZ31 Mg alloys journal September 2004
Grain refinement of Mg–Al–Zn alloys via accumulative roll bonding journal November 2004
Texture variation and its influence on the tensile behavior of a friction-stir processed magnesium alloy journal June 2006
Producing nanograined microstructure in Mg–Al–Zn alloy by two-step friction stir processing journal August 2008
Influence of thermo-mechanical parameters on texture and tensile behavior of friction stir processed Mg alloy journal November 2010
Influence of twinning on the grain refinement during high-temperature deformation in a magnesium alloy journal March 2011
The plastic deformation of polycrystalline aggregates journal January 1962
The Deformation and Ageing of Mild Steel: III Discussion of Results journal September 1951
Texture analysis from synchrotron diffraction images with the Rietveld method: dinosaur tendon and salmon scale journal April 2005
Weight Loss with Magnesium Alloys journal May 2010
Behaviour of AZ31 magnesium alloy during compression at elevated temperatures journal November 2005
On the Nonbasal Slip in Magnesium Crystals journal January 1964
Achieving ultra-fine grains in AZ61 Mg alloy by friction stir processing journal December 2008
Effect of Grain Size on the Deformation and Dynamic Recrystallization of Mg-3Al-1Zn journal October 2004
Texture Analysis with MTEX – Free and Open Source Software Toolbox journal February 2010

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