Abstract
The characteristics of carbides, such as type, size, and distribution, are important factors that affect the quality of high‐speed steel. To improve the characteristics of carbides produced by the electroslag remelting (ESR) process, an innovative process of electroslag remelting withdrawal with secondary aerosol cooling (ESRW–SAC) is proposed. The structure of the molten bath is obtained using tungsten powder detection, and the characteristics of carbides are statistically quantified by scanning electron microscopy (SEM), X‐ray diffraction (XRD), and the Image‐Pro Plus quantitative analysis software. The 3D carbide morphologies and carbides types are determined by an electrolysis device and SEM–energy‐dispersive spectroscopy (EDS). The results show that, compared with the traditional process, without SAC, the structure of the molten metal bath becomes shallower and flatter with the ESRW–SAC process. Under the influence of SAC, the network spacing and lamellar thickness of carbides considerably decrease, the phase area of carbides increases, and the distribution of carbides becomes more uniform. After the ESRW–SAC process, M2C and M6C carbides are still dominant; however, the morphology of M2C carbides changes from a lamellar to a curved short‐rod form.
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.
