|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Magnesium Technology 2016
||P-2: Investigation on Plastic Deformability of Mg-Y Alloys by Vickers and Newly Designed In-situ Brinell Indentation Methods
||Takahiro Mineta, Seiji Miura, Ken-ichi Ikeda
|On-Site Speaker (Planned)
In this study, a plastic deformability of Mg-Y alloys was investigated using Vickers and newly designed in-situ Brinell indentation methods on Mg-Y alloy single crystals. These tests were conducted along a <1-210> or a <10-10> axis at room temperature. Vickers indentation revealed that indents exhibited a difference in diagonal lengths and this difference decreased with increasing Y content. In-situ Brinell indentation revealed that indents distorted like ellipsoidal shape in a similar manner with that of Vickers indentation, while an indenter is hemispherical. Furthermore, an indent grew with ellipsoidal shape during loading process associated with non-uniform operation of plastic deformation mechanisms traces of which are found on the specimen surfaces around the indent. Only basal slip and extension twin occurred on pure Mg while non-basal slips also occurred on Mg-Y alloys. Therefore, it is suggested that the distortion of indents is caused by a difference in activity of plastic deformation mechanisms.
||Planned: A combination print-CD volume