Characterization of high damping TiNi shape memory alloy

Zhishan Yuan; Jingli Hu; Hengjin Zhang; Weidong Miao; Ming Zhu

doi:10.1117/12.923628

12 April 2012 Characterization of high damping TiNi shape memory alloy

Zhishan Yuan, Jingli Hu, Hengjin Zhang, Weidong Miao, Ming Zhu

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 84093A (2012) https://doi.org/10.1117/12.923628
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

Abstract

TiNi shape memory alloys exhibit superior shape memory effect, superelasticity, and high damping capacity. The damping behaviour of a ternary TiNiCu₇ alloy were characterized by dynamic mechanical analyzer (DMA) instrument, dynamic mechanical thermal analysis (DMTA) and differential scanning calorimetry (DSC) equipment. The loss factor Tanδ, storage modulus E' and loss modulus E" of shape memory alloy aging followed by furnace cooling and air cooling were Measured. It shows that test method and cooling rate of aging have significant effect on the results of damping capacity of TiNi SMA. Internal friction values (Q^-1) corresponding to cubic B2 parent phase to rhombohedral R phase transformation are as high as 0.14 for the TiNiCu7 alloy measured by DMA in single cantilever mode, lower than that of 0.21 measured by DMTA in three-point bending mode.

Citation Download Citation

Zhishan Yuan, Jingli Hu, Hengjin Zhang, Weidong Miao, and Ming Zhu "Characterization of high damping TiNi shape memory alloy", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84093A (12 April 2012); https://doi.org/10.1117/12.923628

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available