Abstract
The contribution presents the research results of hardfacing metals’ resistance in conditions of abrasive wear. Two types of hardfacing electrodes with a different chemical composition were used in the creation of three layers of hardfacing metals. The chemical composition of electrodes determines the difference in a hardface deposit structure. We have investigated the influence of mixing the base metal and a filler metal and the influence of hardfacing welds structure on the resistance against abrasive wear. The results of the experiments have showed that the intensity of wear is very dependent on the parameters of wear as well as the morphology structure of hardfacing metals.
Highlights
The wear of mechanical parts of machinery is still a current scientific, engineering and economic issue
The analysis of machine parts and structure faults shows they are often caused by tribological processes that take place at the functional surfaces
An external manifestation of this process is the removal or relocation of the functional surface particles. This process can be measured by a change in the size, weight or mechanical and physico-chemical properties. This process can be alleviated by improving the structural arrangement of nodes, the appropriate choice of materials or the creation of new surface layers [1,2,3,4,5]
Summary
The wear of mechanical parts of machinery is still a current scientific, engineering and economic issue. The analysis of machine parts and structure faults shows they are often caused by tribological processes that take place at the functional surfaces. An external manifestation of this process is the removal or relocation of the functional surface particles. This process can be measured by a change in the size, weight or mechanical and physico-chemical properties. This process can be alleviated by improving the structural arrangement of nodes, the appropriate choice of materials or the creation of new surface layers [1,2,3,4,5]. When creating the surface layers for tribological use, we often encounter hardfacing technology which enables the restoration of the worn surface geometry but gives it new, often better properties than the properties of the original material, which leads to a prolongation of their life [6,7,8]
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