Spark Plasma Sintering of NiTi Shape Memory Alloy

Author(s):  
V. Senthilkumar ◽  
C. Velmurugan
2017 ◽  
Vol 51 (1) ◽  
pp. 141-144
Author(s):  
Pavel Novák ◽  
Hynek Moravec ◽  
Vladimír Vojtech ◽  
Anna Knaislová ◽  
Andrea Školáková ◽  
...  

2021 ◽  
Vol 11 (4) ◽  
pp. 1802
Author(s):  
Sneha Samal ◽  
Orsolya Molnárová ◽  
Filip Průša ◽  
Jaromír Kopeček ◽  
Luděk Heller ◽  
...  

An analysis of the shape memory effect of a NiTi alloy by using the spark plasma sintering approach has been carried out. Spark plasma sintering of Ti50Ni50 powder (20–63 µm) at a temperature of 900 °C produced specimens showing good shape memory effects. However, the sample showed 2.5% porosity due to a load of 48 MPa. Furthermore, an apparent shape memory effect was recorded and the specimens were characterized by uniformity in chemical composition and shape memory alloys of NiTi showed significant austenite phases with a bending strain recovery of >2.5%.


2016 ◽  
Vol 16 (4) ◽  
pp. 804-808 ◽  
Author(s):  
Pavel Salvetr ◽  
Tomáš František Kubatík ◽  
Pavel Novák

2002 ◽  
Vol 2002.2 (0) ◽  
pp. 511-512
Author(s):  
Takeshi Kadomura ◽  
Masakazu Yokota ◽  
Hideki Kyogoku ◽  
Shinichiro Komatsu ◽  
Fusahito Yoshida ◽  
...  

2001 ◽  
Vol I.01.1 (0) ◽  
pp. 91-92
Author(s):  
Masakazu YOKOTA ◽  
Hideki KYOGOKU ◽  
Shinichiro KOMATSU ◽  
Fusahito YOSHIDA ◽  
Toshio SAKUMA ◽  
...  

2004 ◽  
Vol 449-452 ◽  
pp. 1109-1112 ◽  
Author(s):  
No Jin Park ◽  
Suck Jong Lee ◽  
In Sung Lee ◽  
Kyeong Sik Cho ◽  
Sung Jin Kim

In order to control the grain size of Cu-15.0Zn-8.1Al shape memory alloy, the spark plasma sintering (SPS) technique was applied. The sintering processes were carried out under different atmospheres with a different powder size. The sintered bodies were denser under the Ar+4%H2 gas atmosphere than under the 100% Ar gas. By using the small-sized powders, the fine microstructure with average grain size of 2~3􀀀 was obtained. With the large-sized powders, the single martensitic phase was observed with the average grain size of 70~72􀀀 . When the starting powders with different sizes were mixed, it is confirmed that the average grain size of the manufactured alloys was 15􀀀 , but the distribution of grain size was not uniform.


2000 ◽  
Vol 327-328 ◽  
pp. 489-492 ◽  
Author(s):  
Z. Wang ◽  
Minoru Matsumoto ◽  
Sokrates T. Pantelides ◽  
Kenichi Oikawa ◽  
J. Qiu ◽  
...  

2000 ◽  
Vol 2000.3 (0) ◽  
pp. 333-334
Author(s):  
Toyoaki TANBO ◽  
Hideki KYOGOKU ◽  
Shinichiro KOMATSU ◽  
Toru WATANABRE ◽  
Fusahito YOSHIDA ◽  
...  

2017 ◽  
Vol 2017 (0) ◽  
pp. OS1307
Author(s):  
Hitoo TOKUNAGA ◽  
Yusuke OKAMOTO ◽  
Yuzo NAKAMURA ◽  
Daiki HAMASAKI

2015 ◽  
Vol 828-829 ◽  
pp. 152-157
Author(s):  
Yoshiki Komiya ◽  
Fumihiko Nabeshima ◽  
Hiroshi Izui

Aluminum was composited with iron-base shape memory alloy (SMA) fiber. It is important to join between matrix metal and reinforced SMA fiber successfully. Matrix metal can obtain compressive residual stress caused by shape memory effect of SMA fiber without strong interface. In this study, aluminum matrix composite reinforced by iron-base SMA fiber was fabricated by Spark Plasma Sintering (SPS). At this method, sintering of hard-to-sinter materials (Al and Ti), junction of flame bonding materials is easy. The pure aluminum powder with iron-base SMA fiber was joined at 773K. As a result, intermetallic phase was formed at the interface between aluminum and iron-base SMA fiber and it was clarified that the interfacial strength depends on kind and thickness of intermetallic phase. This strong interface gives beneficial residual stress into aluminum from SMA fiber.


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