Paper Title:
Cracking of NiTi Thin Films Deposited on Cu Substrate
  Abstract

This study has investigated the cracking of Ti-51.45at.%Ni thin films deposited on Cu substrate. An analysis is presented that relates the crack spacing and the Vickers microhardness values to the strain in the film. Tensile tests are carried out on CSS-44100 electron universal testing machine. The strain rate is 1.1 × 10-4 s-1. The average crack spacing is obtained using scanning electron microscopy (SEM). The Vickers microhardness values are determined by Everone MH-6 microhardness tests. The results have showed that a series of parallel cracks grew in the film and the cracks are equally spaced. The minimum crack spacing is about 87 μm. The mean crack spacing is dependent on the tensile strain in the film. The crack spacing decreases as the film elongation increases. The Vickers microhardness values increase as the film elongation increases.

  Info
Periodical
Key Engineering Materials (Volumes 462-463)
Edited by
Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri
Pages
716-719
DOI
10.4028/www.scientific.net/KEM.462-463.716
Citation
Y. H. Li, F.L. Meng, W. T. Zheng, Y.M. Wang, "Cracking of NiTi Thin Films Deposited on Cu Substrate", Key Engineering Materials, Vols. 462-463, pp. 716-719, 2011
Online since
January 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yoichi Kayamori, S. Hillmansen, P.S.J. Crofton, Roderick A. Smith
Abstract:Static and dynamic ductile crack propagation tests were carried out using thin single edge notched tension (SENT) specimens of...
2180
Authors: R.H.C. Wong, Y.S.H. Guo, K.T. Chau, Wei Shen Zhu, Shu Cai Li
Abstract:This paper presents the crack growth mechanism from a 3-D surface flaw on gabbro specimens using strain measurement and acoustic emission...
2357
Authors: Jun Ru Yang, Zhao Qian Li, Chuan Zhen Huang, Quan Wei Wang
Abstract:Basing on the theoretical study on the stress intensity factor (SIF) of the crack inclined across the interface of the cermet cladding part,...
213
Authors: Jun Ru Yang, Gong Ling Chen, Li Li Zhang, Jing Sun
VI. Analytical and Numerical Methods for Materials Processing
Abstract:Based on the theoretical study on the tip stress intensity factor (SIF) of the crack normal to and dwelling on the interface, using the...
525