张林, 刘海, 官跃辉, et al. Research on Evaluation Method of Carbide Band in High Carbon Chromium Bearing Steel[J]. Special Steel, 2022, 43(6): 42-45. DOI: 10.20057/j.1003-8620.2022-00092.
With the extension of high temperature diffusion time
the width of the carbide strip increases and the carbide particles become fine.According to the existing SEP 1520- 1998
CB/T 18254-2016 and ISO 5949- 1983 standard charts
the longer the diffusion time
the higher theband rating
which is contrary to the effect of improving process execution.In this papera new carbide band evaluation method is used to complete the carbide band rating based on the size of the carbide particles in the band
the evaluation results show that the longer high temperature diffusion time
the lower the corresponding carbide band rating.this method can more clearly
intuitively and scientifically proves the improvement of carbide particle refinement and distribution uniformity brought about by the improvement of high temperature diffusion.