| Autor: |
Yutaka Yoshida, Jun-ichi Shibano, Jyunpei Hagikura, Ryuhei Misutani, Yuto Monden |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Journal of Magnesium and Alloys, Vol 12, Iss 8, Pp 3173-3179 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2213-9567 |
| DOI: |
10.1016/j.jma.2024.07.029 |
| Popis: |
In this study, the mechanical behavior of crystal group of hexagonal close-packed (hcp; α phase) and body-centered cubic (bcc; β phase) during tensile loading was investigated to elucidate the mechanism from elastic to plastic deformation transition of the rolled LZ91 Mg alloy using transmission-X-ray diffraction (transmission-XRD) measurement, transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), energy dispersive X-ray spectroscopy (EDS). The approximate proof stress of the LZ91 Mg alloy sample was found that the lattice strain retained the expanded state from 0.6% nominal strain, and the transmission-XRD measurement characterized the crystalline behavior during the transition by the integrated intensity of crystal group hcp(100). The lattice strain of bcc(110) decreased from the 0.6% nominal strain due to dislocation activity, which occurred near β/β grain boundary. In addition, we performed the analyses of electron energy loss spectroscopy (EELS) modes, the Li-K peak disappeared from the segregated Li regions of 10–60 nm near β/β grain boundary at the nominal strain of 0.8%. Understanding this mechanical behavior during the elastic to plastic deformation transition by transmission-XRD is crucial for the development of Mg-Li alloys. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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