Grain size effect on deformation mechanisms in Mg-3Gd

X. Luo, J. Q. Luo, Z. Q. Feng, F. P. Hu, T. Yu, C. Berggreen, G. L. Wu*, N. Hansen, X. Huang

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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Abstract

Mg-3Gd (wt. %) samples were prepared by accumulative roll-bonding (ARB) and subsequent annealing to produce samples with average grain sizes in a wide range from 3.3 μm to 45.1 μm. These samples were tensile tested at room temperature. Dislocation structures and deformation twins in the tested tensile samples were characterized by transmission electron microscopy. Dislocations with different types of Burgers vector were identified based on two-beam diffraction contrast experiments. The results revealed that deformation twins and dislocations are dominant in coarse-grained samples while and dislocations characterize the fine grain deformation structure. The transition of deformation mechanisms and its implications for microstructural design and property optimization are discussed.
Original languageEnglish
Article number012040
JournalI O P Conference Series: Materials Science and Engineering
Volume580
Issue number1
Number of pages6
ISSN1757-8981
DOIs
Publication statusPublished - 2019
Event40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D - Roskilde, Denmark
Duration: 2 Sep 20196 Sep 2019

Conference

Conference40th Risø International Symposium on Material Science: Metal Microstructures in 2D, 3D, and 4D
CountryDenmark
CityRoskilde
Period02/09/201906/09/2019

Bibliographical note

GA no. 788567

Cite this

Luo, X. ; Luo, J. Q. ; Feng, Z. Q. ; Hu, F. P. ; Yu, T. ; Berggreen, C. ; Wu, G. L. ; Hansen, N. ; Huang, X. / Grain size effect on deformation mechanisms in Mg-3Gd. In: I O P Conference Series: Materials Science and Engineering. 2019 ; Vol. 580, No. 1.
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title = "Grain size effect on deformation mechanisms in Mg-3Gd",
abstract = "Mg-3Gd (wt. {\%}) samples were prepared by accumulative roll-bonding (ARB) and subsequent annealing to produce samples with average grain sizes in a wide range from 3.3 μm to 45.1 μm. These samples were tensile tested at room temperature. Dislocation structures and deformation twins in the tested tensile samples were characterized by transmission electron microscopy. Dislocations with different types of Burgers vector were identified based on two-beam diffraction contrast experiments. The results revealed that deformation twins and dislocations are dominant in coarse-grained samples while and dislocations characterize the fine grain deformation structure. The transition of deformation mechanisms and its implications for microstructural design and property optimization are discussed.",
author = "X. Luo and Luo, {J. Q.} and Feng, {Z. Q.} and Hu, {F. P.} and T. Yu and C. Berggreen and Wu, {G. L.} and N. Hansen and X. Huang",
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Grain size effect on deformation mechanisms in Mg-3Gd. / Luo, X.; Luo, J. Q.; Feng, Z. Q.; Hu, F. P.; Yu, T.; Berggreen, C.; Wu, G. L.; Hansen, N.; Huang, X.

In: I O P Conference Series: Materials Science and Engineering, Vol. 580, No. 1, 012040, 2019.

Research output: Contribution to journalConference articleResearchpeer-review

TY - GEN

T1 - Grain size effect on deformation mechanisms in Mg-3Gd

AU - Luo, X.

AU - Luo, J. Q.

AU - Feng, Z. Q.

AU - Hu, F. P.

AU - Yu, T.

AU - Berggreen, C.

AU - Wu, G. L.

AU - Hansen, N.

AU - Huang, X.

N1 - GA no. 788567

PY - 2019

Y1 - 2019

N2 - Mg-3Gd (wt. %) samples were prepared by accumulative roll-bonding (ARB) and subsequent annealing to produce samples with average grain sizes in a wide range from 3.3 μm to 45.1 μm. These samples were tensile tested at room temperature. Dislocation structures and deformation twins in the tested tensile samples were characterized by transmission electron microscopy. Dislocations with different types of Burgers vector were identified based on two-beam diffraction contrast experiments. The results revealed that deformation twins and dislocations are dominant in coarse-grained samples while and dislocations characterize the fine grain deformation structure. The transition of deformation mechanisms and its implications for microstructural design and property optimization are discussed.

AB - Mg-3Gd (wt. %) samples were prepared by accumulative roll-bonding (ARB) and subsequent annealing to produce samples with average grain sizes in a wide range from 3.3 μm to 45.1 μm. These samples were tensile tested at room temperature. Dislocation structures and deformation twins in the tested tensile samples were characterized by transmission electron microscopy. Dislocations with different types of Burgers vector were identified based on two-beam diffraction contrast experiments. The results revealed that deformation twins and dislocations are dominant in coarse-grained samples while and dislocations characterize the fine grain deformation structure. The transition of deformation mechanisms and its implications for microstructural design and property optimization are discussed.

U2 - 10.1088/1757-899x/580/1/012040

DO - 10.1088/1757-899x/580/1/012040

M3 - Conference article

VL - 580

JO - I O P Conference Series: Materials Science and Engineering

JF - I O P Conference Series: Materials Science and Engineering

SN - 1757-8981

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