Abstract
This article presents the results of research on surface treatments for SKD61 steel aiming to fabricate the core-pin used in high pressure aluminum casting. The tempered SKD61 sample with a surface hardness of 597 HV0,1 was nitrided to obtain a surface hardness of 1155 HV0,1 and the thickness of the nitrided layer was 80 µm. The Cr/CrN multilayer coatings were deposited by cathodic Arc-PVD on nitrided and tempered SKD61 substrates so that the hardness reached 1538 and 1755 HV0,1 respectively. The coating thickness obtained was approximately 2 µm for both coating samples. The results showed that the Cr/CrN multilayer coating significantly improved the corrosion and abrasion resistance of the tempered steel substrate and the gas-nitrided substrate. The PVD coating on nitrided substrate exhibited adhesion to the substrate HF1-HF2 level, while the coating on the tempered substrate only obtained HF6 level according to VDI 3198 standard.
Sign-in/Register to access full text options 
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.
