INVESTIGATION OF THE STRUCTURE AND PROPERTIES OF MULTICOMPONENT DIFFUSION BORIDE COATINGS FORMED ON THE SURFACE OF CEMENTED STEEL 30KhGSA

10.25712/ASTU.1811-1416.2022.02.015

Authors

Keywords:

carburizing, boriding, borosiliconizing, chemical-thermal treatment, diffusion layer, hardening, steel, wear resistance, microhardness

Abstract

The paper presents studies of the microstructure and microhardness of multicomponent diffusion boride coatings formed on the surface of pre-hardened 30KhGSA steel. Diffusion coatings on pre-hardened 30KhGSA steel were obtained by simultaneous diffusion saturation with boron, chromium, titanium, and silicon. Metallographic analysis was carried out using metallographic microscope «Carl Zeiss Axio Observer Z1m» and the «ThixoMet PRO» software package. The expediency of using the multicomponent boriding process combined with cementation is shown. Preliminary carburizing of 30KhGSA steel makes it possible to obtain higher microhardness indices than in the case of complex boron-chromium-titanosiliconation without preliminary carburizing. During heat treatment, the surface microhardness of the diffusion coating decreases from 1980 to 1160 HV0.1. In this case, the thickness of the diffusion coating is increased by 3 times.

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Published

2022-06-30

How to Cite

Ivanov С. Г. ., Guryev А. М. ., Guryev М. А. ., Sentyabov И. В. ., & Chernykh Е. В. . (2022). INVESTIGATION OF THE STRUCTURE AND PROPERTIES OF MULTICOMPONENT DIFFUSION BORIDE COATINGS FORMED ON THE SURFACE OF CEMENTED STEEL 30KhGSA: 10.25712/ASTU.1811-1416.2022.02.015. Fundamental’nye Problemy Sovremennogo Materialovedenia / Basic Problems of Material Science, 19(2), 267–275. Retrieved from http://ojs.altstu.ru/index.php/fpsm/article/view/209

Issue

Vol. 19 No. 2 (2022): Fundamental’nye problemy sovremennogo materialovedenia (Basic Problems of Material Science (BPMS))

Section

SECTION 2. METAL SCIENCE AND HEAT TREATMENT OF METALS AND ALLOYS