Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 673, Issue -, Pages 443-449Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2016.07.098
Keywords
Mg-Al-Ca-Mn alloy; High-speed extrusion; Particle pinning; Aging; Tensile property
Categories
Funding
- JSPS KAKENHI Grant [25249101]
- Advanced Low Carbon Technology Research and Development Program (ALCA) [12102886]
- [15J12688]
- Grants-in-Aid for Scientific Research [26709055, 15J12688, 25249101] Funding Source: KAKEN
Ask authors/readers for more resources
The effect of Mn content on mechanical properties and microstructure of Mg-0.3Al-0.3Ca-xMn (wt%, x=0, 0.2, 0.4, 0.8) dilute alloys extruded at a high die-exit speed of 60 in/min has been investigated. The strengths of the as-extruded samples increased with increasing Mn content, and Mg-0.3AI-0.3Ca-0.8Mn (AXM030308) alloy exhibited the highest 0.2% proof stress of 190 MPa. This is due to the formation of fine and strongly textured grain structure as well as the dispersion of high number density of Al-Mn particles. Subsequent solution treatment and peak aging resulted in further increase in strength. High number density of Guinier Preston zones (G.P. zones) were dispersed within fine grains with their [0001] axis normal to the extrusion direction in the peak aged Mg-0.3Al-0.3Ca-0.4Mn (AXM030304) alloy, exhibiting the highest 0.2% proof stress of 220 MPa with reasonable tensile ductility of 22%, which are superior to those of a peak aged 6063 aluminum alloy. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available