J044072 Characteristics of Glass Transition and Shape Memory Effect of Ti-Ni-Zr Thin Film Metallic Glass

2011 ◽  
Vol 2011 (0) ◽  
pp. _J044072-1-_J044072-4
Author(s):  
Junpei SAKURAI ◽  
Seiichi HATA
2010 ◽  
Vol 654-656 ◽  
pp. 1066-1069
Author(s):  
Junpei Sakurai ◽  
Yuko Aono ◽  
Yui Ishida ◽  
Seiichi Hata

We investigated characteristics of Ti-Ni-Zr amorphous thin films before and after annealing, in order to search for novel Ti-Ni-Zr thin film metallic glasses (TFMGs) that exhibit a shape memory effect after crystallization. We found that the Ti42Ni47Zr11 TFMG exhibited a stable shape memory effect after crystallization. This alloy showed a glass transition with the glass transition and crystallization temperatures of 703 and 760 K, respectively. Moreover, this alloy showed a one-step martensitic phase transformation of B2 to B19', when annealed at 973 K for 3.6 ks. The martensitic phase start temperature and reverse martensitic phase start temperature were 296 and 352 K, respectively. In addition, this alloy showed a recovery strain of about 2.4%.


2010 ◽  
Vol 507 (1) ◽  
pp. L8-L12 ◽  
Author(s):  
Gyu-bong Cho ◽  
Bo-min Kim ◽  
Hee-jin Choi ◽  
Jung-pil Noh ◽  
Si-young Choi ◽  
...  

2010 ◽  
Vol 654-656 ◽  
pp. 2107-2110
Author(s):  
Jun Hyun Han ◽  
Tae Ahn ◽  
Hyun Kim ◽  
Kwang Koo Jee

The shape memory effect (SME) and magnetic shape memory effect (MSME) Fe-Pd thin film are using the film curvature method. The corresponding residual stress change due to theSME and MSME in Fe-Pd film is measuredduring thermal cycling and magnetic field changing. AFe-Pd thin film with a lateral composition gradient is deposited onto micromachined x7 cantilever beam arraysubstrate,such that each of the cantilever beams is coated with a film of different composition.There is abrupt stress change in only .1 at % Pd as the temperature of the film is cycled, and the corresponding stress change was measured as 0.16 GPa. The film with .4 at % Pd showsthe abrupt stress change at 0.7 Tesla, which means that the composition has the MSME.


2000 ◽  
Vol 12 (1/2) ◽  
pp. 44-45 ◽  
Author(s):  
Hiromasa YABE ◽  
Rie FUJII ◽  
Yoshitake NISHI ◽  
Kazuya OGURI ◽  
Haru-hisa UCHIDA ◽  
...  

2006 ◽  
Vol 438-440 ◽  
pp. 940-943 ◽  
Author(s):  
M. Kohl ◽  
A. Agarwal ◽  
V.A. Chernenko ◽  
M. Ohtsuka ◽  
K. Seemann

2012 ◽  
Vol 213 (21) ◽  
pp. 2246-2252 ◽  
Author(s):  
Jing Li ◽  
Tuo Liu ◽  
Yi Pan ◽  
Shuang Xia ◽  
Zhaohui Zheng ◽  
...  

Vacuum ◽  
2018 ◽  
Vol 147 ◽  
pp. 78-81 ◽  
Author(s):  
Jian Yao ◽  
Bo Cui ◽  
Xiaohang Zheng ◽  
Ye Wu ◽  
Jiehe Sui ◽  
...  

2011 ◽  
Vol 179-180 ◽  
pp. 325-328 ◽  
Author(s):  
Bo Zhou ◽  
Xue Lian Wu ◽  
Yan Ju Liu ◽  
Jin Song Leng

The glass transition temperatures of epoxy-based shape memory polymers (SMPs), which contain a flexibilizer at various contents of 0%, 5%, 10% and 15% respectively, are determined through DMA tests. The shape memory effect of such materials is investigated through shape recovery experiments. Experimental results show that the content of flexibilizer has much influence on the shape memory effect of epoxy-based SMP. A shape recovery equation is developed based on the results of shape recovery experiment. Numerical calculations show that the developed shape recovery equation well predicts the shape recovery behaviors of epoxy-based SMP.


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