Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7990111 | Journal of Alloys and Compounds | 2018 | 5 Pages |
Abstract
We designed TiNi bulk metallic glass composite (BMGC) which has both a glassy phase and a crystalline phase. The TiNi BMGC undergoes a martensitic transformation during deformation, exhibits the superelastic behavior and excellent mechanical properties: strength of 2.5â¯GPa, ductility of more than 20%. It is known that mechanical-fatigue is an important feature which affects the martensitic transformation during superelastic cyclic loading. Comparison of the fatigue performances in TiNi dual-phase alloy and TiNi fully crystalline alloy demonstrates that the amorphous phase acts as the barrier and sinking of the dislocation slipping and promotes martensite-austenite phase transition during the superelastic cycling. The representative BMGCs provide a way to design metallic glasses with high ductility and outstanding anti-fatigue properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
J. Jiang, D.X. Wei, T. Wada, D.V. Louzguine-Luzgin, H. Kato,