Hostname: page-component-77c89778f8-m8s7h Total loading time: 0 Render date: 2024-07-17T03:45:31.787Z Has data issue: false hasContentIssue false
  • English
  • Français

Direct Printout X-Ray Pole Figures from Digital Computers

Published online by Cambridge University Press:  06 March 2019

Hung-Chi Chao
Hung-Chi Chao*
Affiliation:
Applied Research Laboratory, United States Steel Corporation
Get access

Abstract

The texture of sheet metal Is best described, by means of pole figures, which are very expensive and time-consuming to prepare. About 8 to 12 hours of effort by a specially trained, and. highly skilled technician are needed to prepare each pole figure. Accordingly, pole figures are not used as extensively in research studies as they would, be if they could be obtained more easily.

A method has been developed for automatically producing pole figures by printing results directly from a digital computer. This method does not require the use of additional plotting attachments and, is therefore less expensive and time consuming than other methods. With this method, any laboratory with access to a digital computer can produce pole figures automatically.

X-ray diffraction intensities are recorded on punched tape or on punched cards and are fed into the digital computer. A computer program corrects X-ray data obtained, by either transmission or reflection X-ray techniques, maps the stereographic projection, and prints pole figures directly. The time required, to prepare an accurate pole figure is reduced from 8 to 12 hours to 20 minutes or less depending on the type of digital computer used.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 12: Seventeenth Annual Conference on Applications of X-ray Analysis, August 21-23, 1968 , 1968 , pp. 391 - 403
Copyright
Copyright © International Centre for Diffraction Data 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Schulz, L. G., “A Direct Method of Determining Preferred Orientation of a Flat Reflection Sample Using a Geiger Counter X-Ray Spectrometer,” Journal of Applied Physics, 20: 1030–1033, 1949.Google Scholar
2. Geisler, A. H., “Crystal Orientation and Pole Figure Determination;’ Modern Research Techniques, ASM Publication, 1953, pp. 131-153.Google Scholar
3. Holland, J. R., Engler, N., and Powers, W., “The Use of Computer Techniques to Plot Pole Figures,” Advances in X-Ray Analysis, 4, 1961, pp. 74–84.Google Scholar
4. Heckler, A. J., Elias, J. A., and Woods, A. P., “Automatic Computer Plotting of pole Figures and Axis Density Figures,” Transactions AIME, 239: 1241–1244, 1967.Google Scholar
5. Love, G. R., “Computer-Directed Plotting of X-Ray Pole Figures,” Transactions AIME, 242: 745–747, 1968.Google Scholar
6. Montgomery, G. L., “Computer Plotting of Pole Figures Using the Terminal Printer as Output Device,” Transactions AIME, 242: 762–763, 1968.Google Scholar
7.ASTM Standard Designation E81-63, “Standard Method for Preparing Quantitative Pole Figures of Metals,” ASTM Standards, Part 31, 1967, pp. 344-360.Google Scholar