Abstract
Densification behavior and mechanical properties of Fe–Ni–Cu alloys prepared by carbusintering (CBS) and conventional sintering (CS) were studied. Carbusintering process showed the improved properties and high density compared with conventional sintering process. These differences can be explained by the microstructure and the diffusion of copper in iron powder. Microstructure observations indicated that the carbusintering process favored to refine grain size. Diffusion model analysis indicated that the diffusion coefficient of copper in iron was up to 0.63 × 10 −14 m 2/s during carbusintering process. After heat treatment, the hardness, impact energy and ultimate fracture strength of carbusintered compact are increased to 48HRC (484 HV), 13 J and 531 MPa, respectively. The use of CBS process was able to make process simple by taking sintering and carburizing as one step. The higher carbon content of the surface in P/M parts can be easily achieved compared to conventional carburizing.
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.
