Investigation of Sintering Process of Powder Steel SP60KhN4D2М with Various Plasticizers and Alloying Additives in Original Charge

Regularities of sintering of molds made of alloyed powder mixtures with different plasticizers are studied. The following optimal technological parameters are established: a pressure of static cold pressing of 700 MPa, a temperature of isothermal exposure in a hydrogen atmosphere of 1000°C for 60 min, and an isothermal exposure in vacuum at 1250°C for 60 min. These parameters provide the best combination of properties of sintered powder steel. In addition, the microstructure of steel is studied by optical microscopy.