Abstract
Oxide dispersion strengthened (ODS) ferritic alloys of composition Fe-16Cr-2Al-2W-0.3Ti with varying additions of Y2O3 (0, 0.25, 0.5, 0.75 wt%) were fabricated by mechanical alloying (MA) and Spark plasma sintering (SPS) technique swiftly. The influence of SPS temperature in phase evolution and densification kinetics of ODS ferritic alloy was studied at two different temperatures of 900 °C and 950 °C with 5 min soaking duration at the imposed pressure of 50 MPa. X-ray diffraction (XRD) study was carried out on milled powders and sintered bulk samples. XRD confirmed that alloying has taken place and revealed the nano-crystalline nature. Additionally, crystallite size and micro strain were also evaluated. Uniaxial compression test was performed on sintered bulk samples to understand the mechanical properties of these ODS ferritic alloys.
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