Research on the chance of increasing the wear resistance of high-speed steel Using chemical thermal treatment methods

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Mei, S.Q.^1^2 ; Guryev, A.M.^1^3 ; Ivanov, S.G.^3 ; Lygdenov, B.D.^1^4 ; Tsydypov, B.S.^4 ; He, X.Z.^5 ; Liang, Q.Y.^5

Wuhan Textile University, Wuhan

430073, China^1

Hubei Key Laboratory of Digital Textile Equipment, Wuhan

430073, China^2

Polzunov Altai State Technical University, Barnaul, Russia^3

East Siberia State University of Technology and Management, Ulan-Ude, Russia^4

Zhejiang Xinchang Sanxiong Bearing LTD, Zhejiang Xinchang, China^5

关键词: Boronization;    Chamber furnace;    Final heat treatments;    Heating conditions;    Operating temperature;    Resistance properties;    Saturating environments;    Structural heterogeneity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012055/pdf
DOI  :  10.1088/1757-899X/479/1/012055

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The thermal borating methods from powder environment under heating conditions in a chamber furnace in order to determine their effect on the change in the structure and wear resistance properties of high-speed steel P6M5 was simulated by using Al2O3 to form neutral saturating environment. The simulated borating conditions included both saturation without heat treatment, and saturation with twin complex heat treatment in the form of quenching directly after borating, followed by tempering at a temperature of 200 °C for decrease tensions. The structures were researched in the directions of along and across the rolling, because this steel is prone to structural heterogeneity. The chamber with an operating temperature of 1250 ° C was used as heat treatment device. It is shown that thermal treatment modes, used in boronizing steels, slightly changes the structure of the core of P6M5 steel and does not lead to a significant decrease in its mechanical properties, which makes it possible to successfully combine boronization with the final heat treatment of high-speed steel. Regardless of the speed of cooling, the hardness of P6M5 steel is decreased insignificantly. It was noted that heat treatment in powdered saturating environment without a fuse or the use of a protective atmosphere does not lead to negative consequences for the structure and wear resistance properties.