In conventional metals processes such as plastic deformation and thermal treatment the structure formation is attributed to microstresses which could be identified by spreading of diffraction line.  This process substantially changes both microstructure and substructure. Under the treatment of magnetic field or cold plasma it is difficult to observe the structure change by the method of fine-structural investigation. The structure change can be revealed statistically or can be presumed on the basis of its properties [1,2], which might be significant. At the same time, even in case of visible change of the structure, the microstress and closely connected spreading of the diffraction line change slightly, sometimes within the range of metering error [3-5]. So the structure transformation could not be associated with the value of the microstress under condition of cold plasma or magnetic field.   One of the effects of plasma and magnetic field treatment is a change of intensity of X-ray diffraction lines. In particular for the cast iron ferrite after the magnetic field treatment the intensity of X-ray diffraction lines ratio approximates to the estimated value [1]. The effect of intensity of Xray diffraction lines ratio change was observed in [4,5] for chromium and copper under plasma and magnetic field. The effect must be attributed to the influence of lattice strain which is determined by attenuation of the intensity of X-ray diffraction lines of higher order or the increase of roentgenogram diffuse background. The simulation of relaxation in three-dimensional lattice showed [6] that atoms stabilize in a new spatial position relative to the initial position in lattice site, which can be considered as an appearance of a lattice strain.   It is possible that the nondislocation mechanism of structure transformation take place under the influence of plasma and magnetic field.  The low intensity of thermal influence which could activate the diffusion processes is a cause of insignificant structure changes under the condition of cold plasma and magnetic field.