Abstract
In order to control the size and distribution of carbides and improve the cold formability of 1.0C-1.5Cr bearing steel, the effects of annealing parameters during isothermal spheroidization were studied. Mean diameter of carbides (D), interparticle spacing of carbides (s), number of carbides per area (n), and carbides particle size distribution were measured. The cold formability was evaluated through hardness and fracture strain. The results show that when austenitizing time increases from 0.5 to 7 hours or austenitizing temperature increases from 1033 K to 1153 K (760 °C to 880 °C), the values of D and s both increase, and the value of n decreases. With the increasing of second annealing time from 0.5 to 2 hours or the increasing of second annealing temperature from 953 K to 993 K (680 °C to 720 °C), the values of D and s tend to increase and the value of n decreases. According to the measured values of D, s, and n, two models describing their relationships were proposed. In addition, the hardness decreases with the increasing of D. The fracture strain changes slightly at first and then decreases significantly when the value of D exceeds 0.36 μm.
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.
