COMPARATIVE STUDY OF METAL-MINERAL ABRASIVE WEARRESISTANCE OF HARDFACING LAYERSPRODUCED THROUGH DIFFERENT METHODS

Author:

Łatka Leszek1ORCID,Płatek Karolina1,Szala Mirosław2ORCID,Koruba Piotr3ORCID,Sokołowski Paweł1ORCID,Reiner Jacek3ORCID

Affiliation:

1. Wrocław University of Science and Technology, Department of Metal Forming, Welding and Metrology, Faculty of Mechanical Engineering

2. Lublin University of Technology, Department of Materials Engineering, Faculty of Mechanical Engineering

3. Wrocław University of Science and Technology, Department of Laser Technology, Automation and Production Engineering, Faculty of Mechanical Engineering

Abstract

This article presents a comparison of the results of metal-mineral abrasion resistance investigations of hardfacinglayers produced through different welding methods: (i) arc, (ii) plasma, and (iii) laser. Flux-cored wirewith a metallic core (SK600-G) was used as a feedstock material. The work investigated the influence of basichardfacing parameters on the geometry, microstructure, and correctness of making single beads . Then, fulllayers were made with the parameters selected for each method and abrasion resistance tests were carried outin accordance with the ASTM G65 standard. The obtained test results were analyzed for mechanical propertiesand microstructure of the produced padding welds. On the basis of the tests and analysis of the results,it was found that the use of methods with high energy density has a positive effect on the reduction in thecoefficient of the share of the base material in the padding weld, while increasing the hardness. Comparativeanalysis of the resistance to metal-mineral abrasive wear showed that the resistance was approx. 25% higherfor plasma layers and approx. 35% for laser layers, compared to electric arc-deposited layers.

Publisher

Index Copernicus

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