Abstract

The orientation distribution function (ODF) for a hexagonal material was calculated from its incomplete pole figures by means of the two-step method proposed by the present authors in previous work. In order to examine the reliability of this process, several sets of the simulated four-pole-figure data derived from the orientation distribution of a cold-rolled α-Ti alloy sheet with a regularly added “error” per set were used as inputs for this calculation. The ODFs calculated using this process were compared with those obtained using the complete pole figure method, as well as with the original α-Ti alloy ODF. It may be stated that, if the experiment is done carefully, the accuracy of the ODF calculated by means of the two-step method is quite reliable. The computer time needed for this process is about equal to that required for the complete pole figure method, and the program for this two-step method is in ALGOL-60.

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