This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Development and Control of Crystallographic Texture in 3Al-2.5V Titanium Alloy Tubing
Annotation ability available
Sector:
Language:
English
Abstract
Crystallographic textures which develop in alpha titanium alloys as a result of cold reduction can cause significant anisotropy or directional properties in finished aircraft hydraulic line tubing. The directional properties can either enhance or detract from tubing fatigue life and formability depending on the type of texture built into the tube during manufacture.
Previous work has shown that the texture associated with optimum tube properties is one for which the basal poles of the hexagonal cell are near perpendicular to the tube axis in the longitudinal section, and radial in the transverse section. This texture is developed by using high ratios of wall to diameter reduction during cold working.
The text provides guideline data for controlling cold reduction schedules during tube making to produce an optimum texture in the final product. Both tube reducing and bench drawing are considered as cold working methods.
A discussion of a relatively fast and simple method for measuring the anisotropy present in tubing is given as a preliminary step toward establishing a standard test which can be used in procurement specifications.
Recommended Content
Authors
Citation
Rees, T., "The Development and Control of Crystallographic Texture in 3Al-2.5V Titanium Alloy Tubing," SAE Technical Paper 730628, 1973, https://doi.org/10.4271/730628.Also In
References
- Harruff G. W. Velden J. Vander Nelson W. G. Spurr W. Quist W. “Titanium 3 Al-2.5 V CW Hydraulic Tubing Development” Final report No. FAA-SS-72-60 to the Federal Aviation Administration under Contract No. DOT-FA-SS-71-12 October 1972
- Steward K. P. Cheadle B. A. “The Effect of Preferred Orientation on the Mechanical Properties and Deformation Behavior of Zircaloy-2 Fuel Sheathing” Transactions of the Metallurgical Society of AIME 239 April 1967
- Hosford W. F. “Texture Strengthening” Metals Engineering Quarterly 6 4 November 1966
- Babel H. W. Fredrick S. F. “A Review of Texture Strengthening of Titanium Alloys” Journal of Metals October 1968
- Babel H. W. Corn D. L. “A Comparison of Methods for Correlating Texturing with the Biaxial Strengths of Titanium Alloys” Metals Engineering Quarterly 7 1 February 1967
- Woods C. R. “Properties of Zircaloy-4 Tubing” Report No. WAPD-TM-585 to the U.S. Atomic Energy Commission under Contract No. AT-11-1-GEN-14 December 1966
- Rittenhouse P. L. “Strain Behavior in Uniaxially Tested Zircaloy Tubing” Journal of Nuclear Materials 24 1967
- Mukhayev V. V. Adamesku R. A. Gel'd P. V. “The Cold Rolling Texture of Alloyed Titanium” Foreign Technology Division of Wright Patterson AFB March 1970
- Hobson D. O. “Tubing Fabrication Parameters and Their Application to Texture Control in Zircaloy Tubing” Oak Ridge National Laboratory Report ORNL-TM-3500 October 1971