MATEC Web Conf.
Volume 297, 2019X International Scientific and Practical Conference “Innovations in Mechanical Engineering” (ISPCIME-2019)
|Number of page(s)||7|
|Section||Nanotechnologies and Materials Science in Mechanical Engineering|
|Published online||13 November 2019|
The Effect of Vibro-Finishing Treatment on The Porosity of the Surface Layer of Powder Metallurgy Products
Don State Technical University, 344000, Rostov-on-Don, 1 Gagarina prospect, Russian Federation
2 University of Douala, Douala, Cameroon
* Corresponding author: Ankudimov1950@mail.ru
The article is devoted to the methods of surface plastic deformation treatment to change the porosity of parts obtained from powder materials. Functional dependences between the concentration of the solid part of the system and the size of the plastic print on the example of vibro-finishing and hardening treatment (VF and HT) are established. The reduction in porosity upon hardening of the surface material is experimentally confirmed. The results can be used to predict the surface porosity of powder metallurgy products that have undergone additional processing of SPD, as well as for further studies of the field of application of (VF and HT). Based on the particle interaction in the working medium with the part surface made from powder material, we obtained functional dependence of the density coefficient of the surface layer of the powder material after (VF and HT). Experimental studies were carried out on samples of powdered iron PK6. The porosity of the samples was determined by stereoscopic metallography, microhardness of the surface layer - on hardness tester. Everything was performed by standard methods. The results were presented in a series of porosity charts. Maximum hardening is 30% of almost twofold porosity reduction. The experts in the field of powder metallurgy may be interested in the obtained results.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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