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Published in:
2020 | OriginalPaper | Chapter
The Effect of the Hardfacing Processes Parameters on the Carbide Volume Fraction
Authors : Marek Gucwa, Jerzy Winczek, Sławomir Parzych, Marcin Kukuryk
Published in: Advances in Design, Simulation and Manufacturing II
Publisher: Springer International Publishing
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Abstract
The paper presents the results of research on the possibility of shaping the hardfacing structure by changing the conditions of the surfacing process. The material used in research was high carbon and chromium a self-shielding cored wire giving the hardness 760–840 HV (62–65 HRC) according to the manufacturer. The obtained hardness of the hardfacing was on the same level or was significant higher. The test results show significant differences in the structure and hardness of the deposits, where differences in the amount of carbide precipitations reach 30%, and differences in hardness reach up to 200 HV. The erosion tests showed that impingement angle 30° gives lower erosion rate than angle 60°. It is possible to shape the structure and properties of hardfacing to a certain extent by selecting the appropriate parameters of the surfacing process. In conditions of this experiment the decisive effects on the properties are played by parameters such as heat input and heat dissipation.