ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this research, we investigated the fabrication conditions of Ti-Ni alloy powder by MAprocess and the shape memory characteristics of the sintered alloy by a pulse-current sinteringequipment using mechanically alloyed powder (MA powder). The microstructure of the sinteredalloy of the MA powder was more homogeneous than that of the alloy of the elemental powders.The application of the MA powder makes the width between transformation temperatures of theshape memory treated alloy of the MA powder became narrower, that is, it improves thetemperature response of the compact. The tensile strength and elongation of the shape memorycompact of the MA powder were approximately 780 MPa and 7.5 %, respectively. This is one ofthe superior tensile properties of SMA compact fabricated by powder metallurgy process. Thesuperelastic behavior took place in the alloy of the MA powder. Thus, the MA process in shortprocess time resulted in lower contamination of the MA powder and the application of the MApowder resulted in superior shape memory characteristics of the sintered alloy
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.3313.pdf
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