Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29969
Title: The improved superelasticity of NiTi alloy via electropulsing treatment for minutes
Authors: Zhu, RF
Liu, JN
Tang, GY
Shi, SQ 
Fu, MW 
Tse, ZTH
Keywords: Electropulsing treatment
Nickel-titanium alloy
Recrystallization
Superelasticity
Issue Date: 2014
Publisher: Elsevier Science Sa
Source: Journal of alloys and compounds, 2014, v. 584, p. 225-231 How to cite?
Journal: Journal of Alloys and Compounds 
Abstract: Mechanical testing, transmission electron microscopy, X-ray and electrical resisitivity measurement were employed to study the superelasticity and microstructure of cold-rolled NiTi shape memory alloy subjected to electropulsing treatment (EPT) for more than 2.5 min. The best superelasticity with 8% of recovery strain is acquired due to recrystallization and aging of the NiTi alloy under electropulsing. The band microstructure of NiTi alloy cold-rolled has been changed to the equiaxed grains after EPT and the average size of NiTi alloy with the best superelasticity reaches to 40 nm. In addition, the X-ray pattern, electrical resistivity change and the upper plateau strength of the electropulsing processed NiTi alloy indicate the Ni4Ti 3 and Ni3Ti precipitates are produced respectively for the NiTi alloy treated by electropulsing with the frequency of 150 and 350 Hz. Furthermore, the decrease of electrical resistivity of the NiTi alloy processed by with the frequency of 250 Hz shows the coherent relationship between austenite and Ni4Ti3 changes to the incoherent one in between.
URI: http://hdl.handle.net/10397/29969
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2013.09.040
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

10
Last Week
0
Last month
0
Citations as of Apr 25, 2017

WEB OF SCIENCETM
Citations

9
Last Week
1
Last month
1
Citations as of Apr 19, 2017

Page view(s)

24
Last Week
0
Last month
Checked on Apr 23, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.