ANISOTROPY OF MICRO-STRESSES MEASURED BY DIFFRACTION

We present an original method for the determination of residual stress es in plastically deformed polycrystalline material (1, 2). The advant age of our method is that the anisotropy of residual stress field can be determined. Moreover, the principles of the diffraction experiment for internal stress measurement are recalled. Using the neutron and X- ray techniques, we have determined the first and the second order stre sses for cold rolled steel.