Low Pressure Carburizing of Pyrowear Alloy 53

Pyrowear Alloy 53 is an excellent material for the construction of power transmission components (gears, shafts etc.) working in difficult conditions. They are mainly used in the aerospace industry. These elements are characterized by high surface hardness and abrasion resistance, while maintaining a flexible core, able to transmit high impact loads. They can work at elevated temperatures and with limited lubrication.

The foundation for heat treatment of these elements is case hardening, based on the surface carburizing. The article shows low pressure carburizing (LPC) technology used for Pyrowear Alloy 53. It discusses the methods of forming various carbon concentration profiles in the layer and its effect on the hardness profile. It also considers the impact of sub-zero treatment and tempering processes on the properties of the case.

The low pressure carburizing simulator dedicated for Pyrowear Alloy 53 will be presented. It provides, with high accuracy, a result of the process in form of the carbon concentration profile in the layer, or inversely, determines the process parameters, ensuring the required profile.