Investigation of deformation twinning under complex stress states in a rolled magnesium alloy
Abstract
We employed a specially designed semi-circular notch specimen in the current study to generate the various strain conditions, including uniaxial, biaxial, shear, and plane strains, which was utilized to explore the evolution of different deformation twinning systems under complex loading conditions. We found that when using in situ synchrotron X-ray diffraction mapping method, that the extensive double twins were activated during loading, while nearly no extension twinning activity was detected. After the formation of {10.1} and {10.3} compression twins, they transformed into {10.1}-{10.2} and {10.3}-{10.2} double twins instantaneously at the early stage of deformation. The lattice strain evolutions in different hkls were mapped at selected load levels during the loading-unloading sequence. Finally, the relationship between the macroscopic straining and microscopic response was established.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical and Engineering Materials Division
- Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
- Tsinghua Univ., Beijing (China)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1327599
- Alternate Identifier(s):
- OSTI ID: 1359240
- Grant/Contract Number:
- AC05-00OR22725; AC02-06CH11357
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Alloys and Compounds
- Additional Journal Information:
- Journal Volume: 683; Journal Issue: C; Journal ID: ISSN 0925-8388
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Metals and alloys; Mechanical properties; X-ray diffraction; Microstructure
Citation Formats
Wu, Wei, Chuang, Chih-Pin, Qiao, Dongxiao, Ren, Yang, and An, Ke. Investigation of deformation twinning under complex stress states in a rolled magnesium alloy. United States: N. p., 2016.
Web. doi:10.1016/j.jallcom.2016.05.144.
Wu, Wei, Chuang, Chih-Pin, Qiao, Dongxiao, Ren, Yang, & An, Ke. Investigation of deformation twinning under complex stress states in a rolled magnesium alloy. United States. https://doi.org/10.1016/j.jallcom.2016.05.144
Wu, Wei, Chuang, Chih-Pin, Qiao, Dongxiao, Ren, Yang, and An, Ke. 2016.
"Investigation of deformation twinning under complex stress states in a rolled magnesium alloy". United States. https://doi.org/10.1016/j.jallcom.2016.05.144. https://www.osti.gov/servlets/purl/1327599.
@article{osti_1327599,
title = {Investigation of deformation twinning under complex stress states in a rolled magnesium alloy},
author = {Wu, Wei and Chuang, Chih-Pin and Qiao, Dongxiao and Ren, Yang and An, Ke},
abstractNote = {We employed a specially designed semi-circular notch specimen in the current study to generate the various strain conditions, including uniaxial, biaxial, shear, and plane strains, which was utilized to explore the evolution of different deformation twinning systems under complex loading conditions. We found that when using in situ synchrotron X-ray diffraction mapping method, that the extensive double twins were activated during loading, while nearly no extension twinning activity was detected. After the formation of {10.1} and {10.3} compression twins, they transformed into {10.1}-{10.2} and {10.3}-{10.2} double twins instantaneously at the early stage of deformation. The lattice strain evolutions in different hkls were mapped at selected load levels during the loading-unloading sequence. Finally, the relationship between the macroscopic straining and microscopic response was established.},
doi = {10.1016/j.jallcom.2016.05.144},
url = {https://www.osti.gov/biblio/1327599},
journal = {Journal of Alloys and Compounds},
issn = {0925-8388},
number = C,
volume = 683,
place = {United States},
year = {Sun May 15 00:00:00 EDT 2016},
month = {Sun May 15 00:00:00 EDT 2016}
}
Web of Science
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Works referencing / citing this record:
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