In an earlier paper (Sakata et al., 1989), it was shown that the 4th and 6th order ODF coefficients
could be successfully derived from Young's modulus measurements using the elastic energy method.
However, the values of some of the coefficients fell beyond the expected error ranges. In this study,
more appropriate single crystal elastic constants are selected by means of a fitting procedure. Then
the ODF coefficients are again estimated in the manner described previously. As a result, the values
of the C411, C611, C612 and C614 coeffioents, which were somewhat inaccurate in the previous calculation,
are improved considerably. The volume fractions of the principal preferred orientations are then
employed to predict the 8th order coefficients and the fiber components of the l = 10 and l = 12 (C1011,
C1211 and C1221) coefficients. With the aid of the coefficients obtained in this way, both pole and inverse
pole figures are drawn, which are in better agreement with those based on X-rays than when only the
4th order coefficients are employed.
Estimation of 8th, 10th and 12th
Order ODF Coefficients From Elastic Properties in Cold Rolled Steel Sheets by Adjustment of Single Crystal Elastic Constants