Next Article in Journal
Fatigue Behavior of Ultrafine-Grained Medium Carbon Steel with Different Carbide Morphologies Processed by High Pressure Torsion
Next Article in Special Issue
Characterization of Deformation Behavior of Individual Grains in Polycrystalline Cu-Al-Mn Superelastic Alloy Using White X-ray Microbeam Diffraction
Previous Article in Journal
Analysis of Magneto-Piezoelastic Anisotropic Materials
Previous Article in Special Issue
An in situ Study of NiTi Powder Sintering Using Neutron Diffraction
Open AccessArticle

Twinning-Detwinning Behavior during Cyclic Deformation of Magnesium Alloy

1
Department of Materials Science and Engineering, Chungnam National University, Daejeon 305-764, Korea
2
Materials Science and Technology, Los Alamos National Laboratory, Los Alamos, NM 87544, USA
3
Canadian Neutron Beam Centre, Canadian Nuclear Laboratories, Chalk River, ON K0J 1J0, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Klaus-Dieter Liss
Metals 2015, 5(2), 881-890; https://doi.org/10.3390/met5020881
Received: 20 April 2015 / Revised: 12 May 2015 / Accepted: 18 May 2015 / Published: 26 May 2015
(This article belongs to the Special Issue Metals Challenged by Neutron and Synchrotron Radiation)
In situ neutron diffraction has been used to examine the deformation mechanisms of a precipitation-hardened and extruded Mg-8.5wt.%Al alloy subjected to (i) compression followed by reverse tension (texture T1) and (ii) tension followed by reverse compression (texture T2). Two starting textures are used: (1) as-extruded texture, T1, in which the basal pole of most grains is normal to the extrusion axis and a small portion of grains are oriented with the basal pole parallel to the extrusion axis; (2) a reoriented texture, T2, in which the basal pole of most grains is parallel to the extrusion axis. For texture T1, the onset of extension twinning corresponds well with the macroscopic elastic-plastic transition during the initial compression stage. The non-linear macroscopic stress/strain behavior during unloading after compression is more significant than during unloading after tension. For texture T2, little detwinning occurs after the initial tension stage, but almost all of the twinned volumes are detwinned during loading in reverse compression. View Full-Text
Keywords: magnesium alloy; deformation; twinning; detwinning; neutron diffraction magnesium alloy; deformation; twinning; detwinning; neutron diffraction
Show Figures

Figure 1

MDPI and ACS Style

Lee, S.Y.; Wang, H.; Gharghouri, M.A. Twinning-Detwinning Behavior during Cyclic Deformation of Magnesium Alloy. Metals 2015, 5, 881-890. https://doi.org/10.3390/met5020881

AMA Style

Lee SY, Wang H, Gharghouri MA. Twinning-Detwinning Behavior during Cyclic Deformation of Magnesium Alloy. Metals. 2015; 5(2):881-890. https://doi.org/10.3390/met5020881

Chicago/Turabian Style

Lee, Soo Y.; Wang, Huamiao; Gharghouri, Michael A. 2015. "Twinning-Detwinning Behavior during Cyclic Deformation of Magnesium Alloy" Metals 5, no. 2: 881-890. https://doi.org/10.3390/met5020881

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Search more from Scilit
 
Search
Back to TopTop