Mg-Sc based alloy with high strength and functionality using BCC/HCP phase transformation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H05549
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Tohoku University
• Principal Investigator: Ando Daisuke 東北大学, 工学研究科, 助教 (50615820)
• Co-Investigator(Renkei-kenkyūsha): KOIKE Junichi 東北大学, 未来科学技術共同研究センター, 教授 (10261588) ; SUTOU Yuji 東北大学, 工学研究科, 准教授 (80375196)
• Research Collaborator: OGAWA Yukiko ; TAKEUCHI Yuta
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: マグネシウム / スカンジウム / マルテンサイト変態 / 高強度 / 高延性

Outline of Final Research Achievements

I focused novel Mg-Sc alloys with high strength and functionality using phase transformation. This study mainly shows Mg-Sc alloy exhibits Martensitic transformation from BCC phase to orthorhombic phase and the transformation produces super-elasticity and shape memory effects for the first time in the world. This result disproved Mg alloys can not exhibit Martensitic transformation because the hardness of Magnesium is too low. Furthermore, it indicates some possibility to use the Mg-Sc alloy for aerospace and medical application such as self expanding frames of solar panel and biodegradable implant material.

Free Research Field

材料組織学