|Title of the article||
ON THE THEORY OF ULTRASONIC TECHNOLOGY OF THE FERRITE PRODUCTS SURFACE LAYER BRITTLENESS REDUCTION
Krеvchik Vladimir Dmitrievich, Doctor of physical and mathematical sciences, professor, head of sub-department of physics, Penza State University, email@example.com
One of possible mechanisms of reduction of fragility in the surface layer of the ferrite materials of Mn–Zn , connected with process diffuse spreading Cottrell's zones in the conditions of ultrasound influence is theoretically investigated. It is shown, that the acoustic-stimulation diffusion factor is defined by the dissipation energy rate, and also by additional number additional jumps for atoms of impurity atmospheres during an ultrasound wave period. It is established, that the impurity atmosphere diffusion can be accompanied by partial or full striking off of dispositions. As result, the local Young’s modulus value decreases; and, hence, fragility of the ferrite surface layer decreases too.
ferrite, diffusion, ultrasonic influence, impurity atmosphere.
Дата обновления: 21.08.2014 11:17