The laser-plasma cementation as a method of increasing the abrasive resistance of medium-alloy tool steels

Autor:	Irina Belashova, Evgeny A. Marinin, G.N. Gavrilov
Rok vydání:	2020
Předmět:	Materials science law Metallurgy Alloy Abrasive Cementation (metallurgy) engineering Plasma engineering.material Laser law.invention
Zdroj:	IOP Conference Series: Materials Science and Engineering. 709:033099
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/709/3/033099
Popis:	The paper is devoted to the study of resistance of medium alloy tool steels after laser-plasma cementation. The authors propose a method of increasing abrasive resistance by means of the combined effect of DC electric arc of reverse polarity and laser radiation. The increased concentration of carbon in the near-surface layer is provided by the erosion of the carbon electrode and melting due to the combined energy effect of laser radiation and electric arc. The formation regularities of the diffusion hardened layer are established. The modes of laser-plasma cementation and test results of the studied materials are presented. The reasons of resistance increase are revealed. The mechanical characteristics of the hardened surface layer are shown. The influence of the energy regimes of the technological process on the depth of the diffusion hardened layer is given.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bebf6414e88dc0b5a966833034d55097 https://doi.org/10.1088/1757-899x/709/3/033099 Zobrazit plný text záznamu