Phase transformations, microstructure and shape memory effect of nitiag alloy with different atomic percentages (at. % ag) manufactured by casting method
Joint Authors
Salman, Khansaa Dawud
Husayn, Saja M.
Husayn, Ahmad A.
Source
Engineering and Technology Journal
Issue
Vol. 39, Issue 4A (30 Apr. 2021), pp.543-551, 9 p.
Publisher
Publication Date
2021-04-30
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Topics
Abstract EN
In this paper, shape memory alloys (SMAs) (NiTi-based) have been manufactured by casting with a different atomic percentage of a silver element (0, 1, 2 and 3 at.
% Ag) using a Vacuum Arc Remelting (VAR) furnace.
The silver element is added to the binary alloys due to its excellent properties such as (anti-corrosion, anti-bacterial and high electrical conductivity), which make these alloys using in wider applications.
These alloys with different atomic percentages (Ni55Ti45Ag0, Ni55Ti44Ag1, Ni55Ti43Ag2 and Ni55Ti42Ag3) have been manufactured.
The successful manufacturing process has been achieved and proved via examinations and tests.
The FESEM microscopic examinations show that the silver element has been distributed uniformly and homogeneously in the NiTi matrix.
Moreover, the emergence of austenite phase, martensite phase and little amount impurities.
Regarding the XRD examination, showed that there is an increase in the number of peaks of Ag phase with an increase in the atomic percentage of the silver element, as well to emergence of phase (Ti2Ni) upon heating, phase (Ti 002) upon cooling, and phase (Ni4Ti3) is not desired.
The starting and finishing of the phase transformations have been determined for all samples by the DSC test.
The Shape Memory Effect (SME) for the alloy (Ni50Ti42Ag3) is measured to be about 89.99%
American Psychological Association (APA)
Husayn, Saja M.& Husayn, Ahmad A.& Salman, Khansaa Dawud. 2021. Phase transformations, microstructure and shape memory effect of nitiag alloy with different atomic percentages (at. % ag) manufactured by casting method. Engineering and Technology Journal،Vol. 39, no. 4A, pp.543-551.
https://search.emarefa.net/detail/BIM-1281564
Modern Language Association (MLA)
Husayn, Saja M.…[et al.]. Phase transformations, microstructure and shape memory effect of nitiag alloy with different atomic percentages (at. % ag) manufactured by casting method. Engineering and Technology Journal Vol. 39, no. 4A (2021), pp.543-551.
https://search.emarefa.net/detail/BIM-1281564
American Medical Association (AMA)
Husayn, Saja M.& Husayn, Ahmad A.& Salman, Khansaa Dawud. Phase transformations, microstructure and shape memory effect of nitiag alloy with different atomic percentages (at. % ag) manufactured by casting method. Engineering and Technology Journal. 2021. Vol. 39, no. 4A, pp.543-551.
https://search.emarefa.net/detail/BIM-1281564
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 550-551
Record ID
BIM-1281564