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| Titel: |
Thermal processing and characterization of 316LVM cardiovascular stent |
| Auteur: |
Verma, Arpana Choubey, Animesh Raval, Ankur Kothwala, Devesh |
| Verschenen in: |
Bio-medical materials and engineering |
| Paginering: | Jaargang 16 (2006) nr. 6 pagina's 381-395 |
| Jaar: |
2006-11-15 |
| Inhoud: |
In the current investigation, annealing was employed as a means to improve the mechanical performance of 316LVM coronary stents. Two different temperatures (1000°C and 1150°C) were explored for the thermal processing of the device. Acid pickling was done as a pre-annealing step to remove the debris and slag material attached to the stent after laser cutting. Post annealing operation involved the electrochemical polishing of the device which was also a parameter for assessment of the feasibility of the annealing process. Microstructural characterization, balloon expandability and tensile testing of the stents were performed to characterize the properties after thermal treatment. A fine grained austenitic structure with marked improvement in the % elongation (>40%) could be achieved after annealing the stents at 1000°C. Balloon expandability tests of the stents annealed at 1000°C indicated that the device was implantable. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 9 gevonden artikelen
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