In this study, Fe-Cu-C alloy is sintered by spark plasma sintering (SPS). The sintering conditions are 60 MPa pressure with heating rates of 30, 60 and 9°C/min to determine the influence of heating rate on the mechanical and microstructure properties of the sintered alloys. The microstructure and mechanical properties of the sintered Fe-Cu-C alloy is investigated by X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM). The temperature of shrinkage displacement is changed at 450°C with heating rates 30, 60, and 90°C/min. The temperature of the shrinkage displacement is finished at 650°C when heating rate 30°C/min, at 700°C when heating rate 60oC/min and at 800°C when heating rate 90oC/min. For the sintered alloy at heating rates of 30, 60, and 90oC/min, the apparent porosity is calculated to be 3.7%, 5.2%, and 7.7%, respectively. The hardness of the sintered alloys is investigated using Rockwell hardness measurements. The objective of this study is to investigate the densification behavior, porosity, and mechanical properties of the sintered Fe-Cu-C alloys depending on the heating rate.

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• Effect of Milling Time and Addition of PCA on Austenite Stability of Fe-7%Mn Alloy
  Seung-Jin Oh, In-Jin Shon, Seok-Jae Lee
  Journal of Korean Powder Metallurgy Institute.2018; 25(2): 126.     CrossRef