Effect of Heat Treatment Process on the Microstructure and Hardness of Train Wheel Material

Abstract:

The effect of heat treatment process on the microstructure and hardness of train wheel material was investigated. The railway wheel material was prepared by a casting process from used train wheel and followed by heat treatment processes namely normalizing, flame hardening, and tempering. The normalizing process at a temperature of 850 °C with a holding time of 120 minutes followed by air cooling has resulted in hardness of 24 HRC. The flame hardening process at a temperature of 800 °C with a holding time of 1 minutes followed by water quenching has resulted in hardness of 57.33 HRC. The tempering process at a temperature of 500 °C with a holding time of 60 minutes followed by air cooling has resulted in a final surface hardness of 34 to 37 HRC that complies with the standards.

• Periodical: Construction Technologies and Architecture (Volume 11)
• Pages: 11-18
• DOI: https://doi.org/10.4028/p-6lXzBa
• Online since: February 2024
• Authors: Muhammad Kozin*, Barman Tambunan
• Keywords: Flame Hardening, Heat Treatment, Mechanical Properties, Tempering, Train Wheel

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