Coupling effect of stretch-bending deformation and electric pulse treatment on phase transformation behavior and superelasticity of a Ti-50.8 at.% Ni alloy

2021 ◽  
Vol 799 ◽  
pp. 140164 ◽  
Author(s):  
Shan Liu ◽  
Jie Zhu ◽  
Xudong Lin ◽  
Xiebin Wang ◽  
Guangchun Wang
2003 ◽  
Vol 112 ◽  
pp. 893-896 ◽  
Author(s):  
T.-H. Nam ◽  
J.-H. Kim ◽  
M.-S. Choi ◽  
H.-W. Lee ◽  
Y.-W. Kim

2012 ◽  
Vol 557-559 ◽  
pp. 1041-1044 ◽  
Author(s):  
Jia Wen Xu ◽  
Ai Lian Liu ◽  
Bing Yu Qian ◽  
Wei Cai

The effect of La addition on the microstructure and phase transformation behavior of Ti 49.3Ni50.7 alloy is investigated by optical microscope (OP), scanning electron microscope (SEM), X-ray diffraction analysis (XRD) and differential scanning calorimeter (DSC). The results show that the microstructure of Ti-Ni alloy is changed obviously with La addition, and the microstructure of Ti-Ni alloy containing La at room temperature is made up of the matrix and LaNi phase. La addition firstly increases the martensitic transformation temperatures evidently and the increase of Ms is about 62°C with 1at.% La. Secondly Adding La changes the type of phase transformation behavior of Ti-Ni alloys, and R phase transformation with Rs temperature about room temperature occurs in La added Ti-Ni alloy.


2011 ◽  
Vol 158 (8) ◽  
pp. A890 ◽  
Author(s):  
Kevin Rhodes ◽  
Roberta Meisner ◽  
Yoongu Kim ◽  
Nancy Dudney ◽  
Claus Daniel

2003 ◽  
Vol 795 ◽  
Author(s):  
Jae-il Jang ◽  
Songqing Wen ◽  
M. J. Lance ◽  
I. M. Anderson ◽  
G. M. Pharr

ABSTRACTNanoindentation experiments were performed on single crystals of (100) Si using a series of triangular pyramidal indenters with centerline-to-face angles in the range 35.3° to 85.0°. The influences of the indenter geometry on cracking and phase transformation during indentation were systematically studied. Although reducing the indenter angle reduces the threshold load for cracking and increases the crack lengths, c, at a given indention load, P, the frequently observed relation between P and c3/2 is maintained for all of the indenters over a wide range of load. Features in the nanoindentation load-displacement curves in conjunction with Raman spectroscopy of the crystalline and amorphous phases in and around the contact impression show that the indenter geometry also plays a role in the phase transformation behavior. Results are discussed in relation to prevailing ideas about indentation cracking and phase transformation in silicon.


Sign in / Sign up

Export Citation Format

Share Document