Partially open cell Ti-6Al-2Co ternary alloy foams with a range of size and volume fraction of spacer particle

• Published in: Materials letters Vol. 290; p. 129463
• Main Authors: Abhash, Amit, Yadav, B.N., Pandey, Ashutosh, Kumar, Rajeev, Chilla, Venkat, Mondal, D.P.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2021
• Subjects: Energy absorbing efficiency; Mechanical properties; Metals and alloys; Microstructure; Porous materials; Titanium foam; Mechanical properties; Metals and alloys; Microstructure; Porous materials; Energy absorbing efficiency; Titanium foam
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2021.129463

[Display omitted] •Partially open cell Ti6Al2Co ternary alloy foams was prepared using range of particle size and volume fraction of sapcer particles.•The decrease of size and increase of vol% of spacer particles decreased the plateau stress, modulus, toughness and microhardness.•The mechanical properties followed power laws and constants of proportionality, and exponent values were found in the close agreement with the published data.•Corrosion rates (mmpy) have been increased with the decrease of particle size of spacer particles. Partially open cell Ti-6Al-2Co alloys foams of varying cell (pore) size (0 to 500 µm) and volume fraction (40 to 70%) are made by varying the space-holder size (SHS) and volume fraction. The increase of space-holder (spacer) size increased the cell size and cell-wall thicknesses, which led to increased plateau stress, energy absorbed (Toughness), hardness and Young’s modulus. Further, increased spacer content and decrease of strain rate; reduced the strength, toughness, and modulus of Ti6Al2Co ternary alloy foams. The corrosion rate was found to be decreasing with increase of particle size of space-holder Also, the corrosion rate and weight loss percent increases with increase in cell volume fraction. Further, the Ti6Al2Co alloy foam’s mechanical properties were found to have a trend of power-law relations with relative densities.