A method which was developed to compare the stress-strain properties of three types of thin-walled, commercially pure titanium tubes is presented. The tubes were of types intended for use in large heat-exchanger applications and were to be subjected to significant plastic deformation during subsequent assembly processes. It had been anticipated that small differences in chemical composition and tube-drawing treatment would produce quite different characteristics. It is known that the properties of titanium can exhibit considerable degrees of anisotropy, especially for wrought products; although axial properties of the materials could be evaluated using standard test equipment and procedures, a novel testing system had to be designed to allow the circumferential properties to be assessed. Significant differences between tube types were observed and anisotropic material behaviour was apparent.
- commercially pure titanium
- mechanical testing
- mechanical engineering
MacKenzie, P. M., Walker, C. A., & McKelvie, J. K. (2007). A method for evaluating the mechanical performance of thin-walled titanium tubes. Thin-Walled Structures, 45(4), 400-406. https://doi.org/10.1016/j.tws.2007.03.007