Abstract
Laser cladding layer with high hardness (H) and toughness have been the focus of surface science research because of their remarkable resistance to cracking and wear. This laser cladding experiment is performed in a magnetic field to fabricate alloy cladding layers. This paper presents the research on the magnetostrictive effects of laser cladding with regard to improvements in crack and wear resistance. The microstructural evolution, mechanical properties, lattice constant changes, and frictional wear properties are also investigated. The magnetostriction generated by the magnetic field reduces the elastic modulus (E). This work presents that cracking and wear resistance can be improved by reducing the elastic modulus while ensuring high hardness. The addition of different Cr contents reveals that the magnetostrictive effect relies on elemental content. Ratio of hardness and elastic modulus can characterize the wear and crack resistance of the coating well. In this study, we discussed the influence of the magnetostrictive effect on the wear resistance, which is related to H/E, and crack sensitivity, which is related to H3/E2, of the laser cladding layer. High H/E and H3/E2, that are obtained by the decrease in elastic modulus through the magnetostriction effect, is an effective method for increasing wear and crack resistance, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
