About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
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Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
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Presentation Title |
Evaluation of Residual Strain Distributions around Ridge-type Kinks in a Single-phase Mg-6at%Zn-9at%Y Alloy by Synchrotron X-ray Radiation |
Author(s) |
Tomotaka Miyazawa, Ryota Namba, Toshiyuki Fujii, Shigeto Yamasaki, Masatoshi Mitsuhara, Hideharu Nakashima |
On-Site Speaker (Planned) |
Tomotaka Miyazawa |
Abstract Scope |
Mg-Zn-Y alloys have a typical mille-feuille structure which is named long-period stacking ordered (LPSO) phase consisted of alternative stacking of hard and soft layers. It has been known that the LPSO phase can be plastically deformed with forming kinks during compressive deformation. In this study, to investigate the kink formation mechanism, residual strain distributions around ridge-type kinks in a compressively deformed LPSO single phase specimen were measured by the energy-dispersive X-ray diffraction microscopy with synchrotron white X-ray. Tensile strain remained locally near by the tips of ridge-type kinks after unloading. This is caused that grain boundaries inhibit bending of basal planes due to the formation of kinks. There were local residual strain distributions which were asymmetric with respect to the ridge-type kinks. This result is consistent with the asymmetric pre-kink formation mechanism before development of the ridge-type kinks. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |