Izvorni znanstveni članak

https://doi.org/10.64486/m.65.3.7

Effect of Tempering Temperature on Microstructure and Properties of 65Mn Spring Steel for Track and Field Starter

Haiyan Ma ; Jinlin Sport University, No. 5699 Linhe Street, Economic Development Zone, Changchun City, Jilin Province, China, 130022
Tong Tong ; Changchun Normal University, No. 677, Changji North Line, Erdao District, Changchun City, Jilin Province, China, 130032
Heyu Shi ; Changchun Automobile Economic and Technological Development Zone Sixth Middle School, No. 1751 Zhinong Street, Lvyuan District, Changchun City, Jilin Province, China, 130000 *
Baihang Wang ; Udon Thani Rajabhat University, Ulongtani, Thailand, 10100

* Dopisni autor.

Sažetak

65Mn spring steel is a candidate material for elastic components in track and field starters due to its favorable combination of strength and elasticity. To optimize its performance for this demanding application, this work investigates the influence of tempering temperature on its mechanical properties and microstructure. The microstructure, hardness and tensile properties of the experimental spring steel after different tempering temperatures were studied. The effect of tempering temperature on the microstructure, hardness, strength, elongation and reduction of area of the alloy was clarified. The results indicate that a tempering temperature of 250 °C yields the optimal mechanical property profile, with a peak hardness of 631 HV, tensile strength of 2030.5 MPa, section shrinkage of 36.1 %, and elongation of 14.9 %. This combination of properties is deemed most suitable for application in track and field starters. This work provides a clear optimization of tempering parameters for this specific application, which has not been systematically reported in previous studies.

Ključne riječi

track and field starter; 65Mn spring steel; microstructure; mechanical properties

Hrčak ID:

344962

URI

https://hrcak.srce.hr/344962

Datum izdavanja:

1.7.2026.

Posjeta: 130 *