Abstract
An innovative method combining pore-forming technique, powder sintering and pressureless infiltration of light metal (Mg) was developed to successfully fabricate NiTi shape memory alloy based composites (i.e., Mg/NiTi). The Mg/NiTi composites possess excellent mechanical and physical properties, such as high damping capacity, high fracture strength and low density. The composites show higher compressive strength than the porous NiTi alloys and exhibit excellent superelasticity over 2%. The product of storage modulus and internal friction (EIF) is used to evaluate systematically the damping performance of Mg/NiTi composites by considering the synergy effect of internal friction and modulus, and several damping mechanisms have been identified.
Original language | English |
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Pages (from-to) | L15-L19 |
Journal | Journal of Alloys and Compounds |
Volume | 490 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 4 Feb 2010 |
Externally published | Yes |
Keywords
- Damping
- Infiltration
- Mechanical properties
- NiTi-based composite
- Powder sintering
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry