scholarly journals A Study of Strain-Induced Phase Transformations in TiNi Alloy by Electric Resistance Method

1988 ◽  
pp. 1447-1454
Author(s):  
Yuan-Ti Muang ◽  
Li-Lin Lu ◽  
Lai-Zhi Zou ◽  
Wang-Yu You
Keyword(s):  
Phase Transformations ◽  
Tini Alloy ◽  
Electric Resistance ◽  
Resistance Method

scholarly journals Investigation of microplastic deformation of metal deposited by electric resistance method

2017 ◽  
Vol 2017 (7) ◽  
pp. 19-22
Author(s):  
E.V. Berezhnaya ◽  
◽  
V.D. Kuznetsov ◽  
V.D. Kassov ◽  
P.A. Gavrish ◽  
...  
Keyword(s):  
Microplastic Deformation ◽  
Electric Resistance ◽  
Resistance Method

Effects of ECAE and Aging on Phase Transformations and Superelasticity of a Ni-Rich TiNi SMA

2011 ◽  
Vol 682 ◽  
pp. 185-191 ◽  
Author(s):  
Xiao Ning Zhang ◽  
Jie Song ◽  
Hong Jiang ◽  
Xiao Gang Sun ◽  
Chao Ying Xie
Keyword(s):  
Heat Treatment ◽  
Phase Transformation ◽  
Martensitic Transformation ◽  
Phase Transformations ◽  
Equal Channel Angular Extrusion ◽  
Tini Alloy ◽  
Recoverable Strain ◽  
Solution Treated ◽  
Cyclic Tensile Test ◽  
Start Temperature

Effects of equal-channel angular extrusion (ECAE) process at 773K and heat treatment on phase transformations and superelasticity of a Ni-rich TiNi shape memory alloy were investigated by differential scanning calorimeter (DSC) measurement and cyclic tensile test. The R phase transformation of Ni-rich TiNi alloy was stimulated after ECAE processes and within a larger temperature range. The martensitic transformation start temperature Ms of Ni-rich TiNi alloy decreased sharply after ECAE processes at 773 K, then rapidly rose back after the specimen aging at 773K for 30min. Reasons for the changes of phase transformation behaviors have been discussed. ECAE processed TiNi samples exhibit better super-elasticity than solution treated one. With the increase passes of ECAE, the superelasticity becomes more stable, and a completely recoverable strain of 6% is obtained for TiNi sample after 8 passes ECAE.

Superelasticity in TiNi Alloys and Its Applications in Smart Systems

2005 ◽  
Vol 475-479 ◽  
pp. 1915-1920 ◽  
Author(s):  
Wei Cai ◽  
Yu Feng Zheng ◽  
Xianglong Meng ◽  
Lian Cheng Zhao
Keyword(s):  
Phase Transformations ◽  
Mechanical Treatment ◽  
Tini Alloy ◽  
Smart Systems ◽  
Current State ◽  
Non Linear ◽  
Thermo Mechanical Treatment

The superelasticity is one of the most important properties of TiNi alloy, which has been widely used in the smart systems of many fields, such as aerospace, aviation, biomedicine and energy etc. The current state of superelasticity of TiNi alloy has been reviewed with emphasis on the superelasticity, phase transformations, thermo-mechanical treatment and their relationship. The mechanisms of linear superelasticity and non-linear superelasticity have been revealed. Some successful applications based on the superelasticity of TiNi alloys in smart systems have been introduced.

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