Abstract
The effects of nitrogen on the characteristics and evolutions of M2C eutectic carbides in the Fe-Mo-W-Co-Cr-V-C alloy were investigated in both as-cast and wrought states. Microstructural observation, electrolytic extraction method, and x-ray diffraction analysis were conducted on the specimens. The results showed that, in the case of low nitrogen concentration (w[N]% = 0.006) in the as-cast alloy, lamellar M2C carbides were found to be the dominant precipitate. Nitrogen addition resulted in M2C carbide precipitate as a fibrous structure rather than a lamellar structure. Fibrous M2C were more likely to decompose into fine spherical M6C and V(C,N) during the forging process compared to lamellar M2C. Accordingly, it was suggested that adding nitrogen to Fe-Mo-W-Co-Cr-V-C alloy was required to achieve small dimensions and homogeneous distribution of carbides.
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.
