We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Dramatically Improved Strength and Plasticity of Pure Magnesium Through Multi-Microalloying with Al, Ca, Mn, Zn, and Sn Elements.
- Authors
Zhou, Xiong; Le, Qichi; Li, Dandan; Hu, Chenglu; Wang, Tong; Liao, Qiyu; Li, Xiaoqiang; Guo, Ruizhen; Liu, Chunming; Zhang, Yongjian
- Abstract
A novel low-alloy wrought Mg-0.26Sn-0.22Zn-0.16Ca-0.18Mn-0.06Al (named AXMZT00000, wt.%) without rare earth elements but with high performance was developed using multi-microalloying design and hot extrusion. The microstructure evolution and tensile properties of the AXMZT00000 alloy were investigated in detail using pure Mg as a comparison. After hot extrusion, the average grain size of AXMZT00000 alloy was significantly refined from 21.8 μm in pure Mg to 2.8 μm. Tensile properties results showed that the as-extruded AXMZT00000 alloy exhibited an excellent combination of strength and plasticity with an ultimate tensile strength (UTS) of ~ 270 MPa, yield strength (YS) of ~ 240 MPa, and elongation (EL) of ~ 25%, which were ~ 69.8%, ~ 160%, and ~ 127% better than that of pure Mg, respectively. Microstructure analysis and strengthening mechanism calculations indicate that the significant improvement in the YS of AXMZT00000 alloy was mainly attributed to grain boundary strengthening and dislocation strengthening. The increased EL of the as-extruded AXMZT00000 alloy was owing to its finer recrystallized grains exhibiting a ductile fracture mode compared with the brittle fracture mode of the pure Mg.
- Subjects
RARE earth metals; MAGNESIUM alloys; TENSILE strength; TIN; MAGNESIUM; BRITTLE fractures; TRACE elements
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2022, Vol 74, Issue 11, p4294
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-022-05447-1