Influence of Silver Addition on Structure, Martensite Transformations and Mechanical Properties of TiNi-Ag Alloy Wires for Biomedical Application.
doping
mechanical properties
nanostructured material
shape memory alloy
silver
wire
Journal
Materials (Basel, Switzerland)
ISSN: 1996-1944
Titre abrégé: Materials (Basel)
Pays: Switzerland
ID NLM: 101555929
Informations de publication
Date de publication:
22 Oct 2020
22 Oct 2020
Historique:
received:
02
10
2020
revised:
18
10
2020
accepted:
20
10
2020
entrez:
27
10
2020
pubmed:
28
10
2020
medline:
28
10
2020
Statut:
epublish
Résumé
The microstructural and functional behavior of TiNi-based wires with a silver content of 0-1.5 at.% was evaluated. The concentration range for Ag doping determined for the TiNi wires with potential for the medical industry was 0-0.2 at.%. Microstructure analysis of TiNi wires with different silver contents at room temperature indicated a multiphase structural state. Various internal structures with tangled grain boundaries were formed by intense plastic deformation. The nanocrystalline structure and phase state of wire with the minimum silver content (0.1 at.% Ag) provide full shape recovery, the greatest reversible strain, and optimal strength and ductility. TiNi ingots with a high Ag content (0.5-1.5 at.%) cracked under minimum load due to excess silver that crystallized along the grain boundaries and broke cohesion bonds between the TiNi grains.
Identifiants
pubmed: 33105862
pii: ma13214721
doi: 10.3390/ma13214721
pmc: PMC7660057
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Ministry of Science and Higher Education of the Russian Federation
ID : 0721-2020-0022
Références
J Biomed Mater Res B Appl Biomater. 2006 Feb;76(2):306-14
pubmed: 16161122
Nat Mater. 2003 Feb;2(2):101-6
pubmed: 12612694
Acta Biomater. 2008 May;4(3):707-16
pubmed: 18248860
Acta Biomater. 2011 Jun;7(6):2758-67
pubmed: 21316493
Mater Sci Eng C Mater Biol Appl. 2019 Jun;99:304-314
pubmed: 30889704