Distinct recrystallization pathways in a cold-rolled al-2%mg alloy evidenced by in-situ neutron diffraction

Grigoreta M. Stoica; Luc L. Dessieux; Alexandru D. Stoica; Sven C. Vogel; Govindarajan Muralidharan; Balasubramaniam Radhakrishnan; Sarma B. Gorti; Ke An; Dong Ma; Xun Li Wang

doi:10.3390/qubs2030017

Distinct recrystallization pathways in a cold-rolled al-2%mg alloy evidenced by in-situ neutron diffraction

Grigoreta M. Stoica, Luc L. Dessieux, Alexandru D. Stoica, Sven C. Vogel, Govindarajan Muralidharan, Balasubramaniam Radhakrishnan, Sarma B. Gorti, Ke An, Dong Ma, Xun Li Wang

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The time-of-flight neutron diffraction data collected in-situ on Oak Ridge National Laboratory’s (ORNL, Oak Ridge, TN, USA) VULCAN and Los Alamos National Laboratory’s (LANL, Los Alamos, NM, USA) High-Pressure-Preferred-Orientation (HIPPO) diffractometers have been analyzed complementarily to show the texture evolution during annealing of a cold-rolled Al-2%Mg alloy. The texture analysis aimed to identify the components present in the initial rolling (or deformation) texture and in the thermally-activated recrystallization texture, respectively. Using a quasi-Monte-Carlo (QMC) approach, a new method has been developed to simulate the weighted texture components, and to obtain inverse pole figures for both rolling and normal directions. As such, distinct recrystallization pathways during annealing in isochronal conditions, can be revealed in terms of the evolution of the texture components and their respective volume fractions. Moreover, the recrystallization kinetics associated with the cube and random texture components are analyzed quantitatively using a similar approach developed for differential scanning calorimetry (DSC).

Original language	English
Article number	17
Journal	Quantum Beam Science
Volume	2
Issue number	3
DOIs	https://doi.org/10.3390/qubs2030017
State	Published - Sep 2018

Funding

The present research was sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC, for the U.S. Department of Energy under the contract No. De-AC05-00OR22725. The data were obtained at the Spallation Neutron Source at ORNL, sponsored by the Scientific User Facilities Division, Office of Basic Energy sciences, U.S. Department of Energy. The work at HIPPO neutron diffractometer has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Office of Basic Energy Sciences, U.S. Department of Energy. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doepublic-access-plan). X.-L.W. acknowledges the support by a grant from the Research Grants Council of the Hong Kong Special Administrative Region [CityU 11215917]. Funding: The present research was sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC, for the U.S. Department of Energy under the contract No. De-AC05-00OR22725. The data were obtained at the Spallation Neutron Source at ORNL, sponsored by the Scientific User Facilities Division, Office of Basic Energy sciences, U.S. Department of Energy. The work at HIPPO neutron diffractometer has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Office of Basic Energy Sciences, U.S. Department of Energy. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doepublic-access-plan). X.-L.W. acknowledges the support by a grant from the Research Grants Council of the Hong Kong Special Administrative Region [CityU 11215917].

Funders	Funder number
DOE Public Access Plan
United States Government
U.S. Department of Energy	DE-AC52-06NA25396, De-AC05-00OR22725
Basic Energy Sciences
Oak Ridge National Laboratory
City University of Hong Kong	11215917
Los Alamos National Laboratory
UT-Battelle
Research Grants Council, University Grants Committee

Keywords

Al-Mg alloy
Cold-rolling texture
Neutron diffraction
Recrystallization texture

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10.3390/qubs2030017

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@article{56cd089ccd444aaaadba8dc320282567,

title = "Distinct recrystallization pathways in a cold-rolled al-2%mg alloy evidenced by in-situ neutron diffraction",

abstract = "The time-of-flight neutron diffraction data collected in-situ on Oak Ridge National Laboratory{\textquoteright}s (ORNL, Oak Ridge, TN, USA) VULCAN and Los Alamos National Laboratory{\textquoteright}s (LANL, Los Alamos, NM, USA) High-Pressure-Preferred-Orientation (HIPPO) diffractometers have been analyzed complementarily to show the texture evolution during annealing of a cold-rolled Al-2%Mg alloy. The texture analysis aimed to identify the components present in the initial rolling (or deformation) texture and in the thermally-activated recrystallization texture, respectively. Using a quasi-Monte-Carlo (QMC) approach, a new method has been developed to simulate the weighted texture components, and to obtain inverse pole figures for both rolling and normal directions. As such, distinct recrystallization pathways during annealing in isochronal conditions, can be revealed in terms of the evolution of the texture components and their respective volume fractions. Moreover, the recrystallization kinetics associated with the cube and random texture components are analyzed quantitatively using a similar approach developed for differential scanning calorimetry (DSC).",

keywords = "Al-Mg alloy, Cold-rolling texture, Neutron diffraction, Recrystallization texture",

author = "Stoica, {Grigoreta M.} and Dessieux, {Luc L.} and Stoica, {Alexandru D.} and Vogel, {Sven C.} and Govindarajan Muralidharan and Balasubramaniam Radhakrishnan and Gorti, {Sarma B.} and Ke An and Dong Ma and Wang, {Xun Li}",

note = "Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2018",

month = sep,

doi = "10.3390/qubs2030017",

language = "English",

volume = "2",

journal = "Quantum Beam Science",

issn = "2412-382X",

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T1 - Distinct recrystallization pathways in a cold-rolled al-2%mg alloy evidenced by in-situ neutron diffraction

AU - Stoica, Grigoreta M.

AU - Dessieux, Luc L.

AU - Stoica, Alexandru D.

AU - Vogel, Sven C.

AU - Muralidharan, Govindarajan

AU - Radhakrishnan, Balasubramaniam

AU - Gorti, Sarma B.

AU - An, Ke

AU - Ma, Dong

AU - Wang, Xun Li

PY - 2018/9

Y1 - 2018/9

N2 - The time-of-flight neutron diffraction data collected in-situ on Oak Ridge National Laboratory’s (ORNL, Oak Ridge, TN, USA) VULCAN and Los Alamos National Laboratory’s (LANL, Los Alamos, NM, USA) High-Pressure-Preferred-Orientation (HIPPO) diffractometers have been analyzed complementarily to show the texture evolution during annealing of a cold-rolled Al-2%Mg alloy. The texture analysis aimed to identify the components present in the initial rolling (or deformation) texture and in the thermally-activated recrystallization texture, respectively. Using a quasi-Monte-Carlo (QMC) approach, a new method has been developed to simulate the weighted texture components, and to obtain inverse pole figures for both rolling and normal directions. As such, distinct recrystallization pathways during annealing in isochronal conditions, can be revealed in terms of the evolution of the texture components and their respective volume fractions. Moreover, the recrystallization kinetics associated with the cube and random texture components are analyzed quantitatively using a similar approach developed for differential scanning calorimetry (DSC).

AB - The time-of-flight neutron diffraction data collected in-situ on Oak Ridge National Laboratory’s (ORNL, Oak Ridge, TN, USA) VULCAN and Los Alamos National Laboratory’s (LANL, Los Alamos, NM, USA) High-Pressure-Preferred-Orientation (HIPPO) diffractometers have been analyzed complementarily to show the texture evolution during annealing of a cold-rolled Al-2%Mg alloy. The texture analysis aimed to identify the components present in the initial rolling (or deformation) texture and in the thermally-activated recrystallization texture, respectively. Using a quasi-Monte-Carlo (QMC) approach, a new method has been developed to simulate the weighted texture components, and to obtain inverse pole figures for both rolling and normal directions. As such, distinct recrystallization pathways during annealing in isochronal conditions, can be revealed in terms of the evolution of the texture components and their respective volume fractions. Moreover, the recrystallization kinetics associated with the cube and random texture components are analyzed quantitatively using a similar approach developed for differential scanning calorimetry (DSC).

KW - Al-Mg alloy

KW - Cold-rolling texture

KW - Neutron diffraction

KW - Recrystallization texture

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ER -

Distinct recrystallization pathways in a cold-rolled al-2%mg alloy evidenced by in-situ neutron diffraction

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