MATEC Web Conf.
Volume 344, 2021International Scientific and Practical Conference “Modern Problems and Directions of Development of Metal Science and Heat Treatment of Metals and Alloys, Dedicated to the Memory of Academician A. A. Baykov” (MPM 2021)
|Number of page(s)||4|
|Published online||01 October 2021|
Influence of oxide inclusions on the process of interparticle splicing of powder materials
Don State Technical University, 34400, Gagarin Square 1, Rostov-on-Don, Russia
2 MISiS National University of Science and Technology, 119991, Leninsky prospect, 4 Moscow, Russia
* Corresponding author: firstname.lastname@example.org
One of the characteristic features of the structure of the powder material is the increased content of oxide inclusions. In most works considering the influence of oxide inclusions on the fracture process, their contradictory role in the processes of crack initiation and development is noted, which consists, on the one hand, in creating concentrators of internal stresses, increasing the tendency of the material to brittle fracture and in reducing the plastic properties of the material, on the other, when oxide inclusions of appropriate dispersion and distribution in the volume of the matrix prevent the sliding of dislocations, thereby contributing to its strengthening. The positive effect of oxide inclusions on the mechanical properties of the material led to the development of the internal oxidation technology as one of the methods of precipitation hardening of materials.
© The Authors, published by EDP Sciences, 2021
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