Influence of Process Parameters on Mechanical and Corrosion Behavior of DED-Processed Biomedical Ti-35Nb-7Zr-5Ta Alloy
| Autor: | Rajarshi Banerjee, M.S.K.K.Y. Nartu, Narendra B. Dahotre, Sangram Mazumder, Sameehan S. Joshi, David Flannery, S.A. Mantri, Kyu Cho, Brandon McWilliams, Aditya Ayyagari |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Equiaxed crystals
Morphology (linguistics) Materials science Alloy 0211 other engineering and technologies General Engineering 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Corrosion Ultimate tensile strength engineering General Materials Science Laser power scaling Composite material 0210 nano-technology Ductility Deposition (law) 021102 mining & metallurgy |
| Zdroj: | JOM. 73:1819-1827 |
| ISSN: | 1543-1851 1047-4838 |
| Popis: | The laser-engineered net-shaping (LENSTM) process was employed for directed energy deposition (DED) of Ti-35Nb-7Zr-5Ta (wt.%) or TNZT, a low modulus metastable β-Ti alloy for biomedical applications. The laser power was varied in the range of 400–600 W, while keeping all other parameters constant. A change in the overall grain morphology was noted in the sample with an increase in the laser power. The higher laser power samples showed more columnar grains compared to the equiaxed grains observed in the 400-W condition. The DED-processed TNZT alloys exhibited a combination of high tensile yield strength (~ 500 MPa) and ductility (~ 25%). Moreover, the alloys also exhibited excellent corrosion resistance in Ringer’s solution. Overall, the results indicate that the LENS-deposited TNZT alloy could be a promising candidate for biomedical applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink