Fabrication of Austenitic ODS 316L Stainless Steel with Arc Plasma Sintering Method

Abstract

Austenitic ODS (Oxide Dispersion Strengthened) 316L steel was fabricated using 316L SS (Stainless Steel) pre-alloyed powder and yttria powders by mechanical milling with APS (Arc Plasma Sintering) method. The powders were milled in High Milling Shaker at 1000 rpm in rotational speed for 10 hours at 10 BPR (Ball Powder Ratio). As milled powders were pressed at 20 Ton and sintered with APS for 0 to 12 minutes at 70 A. The samples were analysed using X-Ray Diffraction (XRD), Microscope Optic (MO) with micro-hardness tester and Scanning Electron Microscope – Energy Dispersive X-Ray Spectroscope (SEM-EDS). The results of phase and microstructure showed the austenitic grade of the samples. The sintering time contributed to the microstructure of the samples. At room temperature, the mechanical properties of ODS 316L SS was higher than conventional 316L SS.

Synthesis of ferritic ODS steel with different electric current in arc plasma sintering method

“…At previous work [27][16] the duration of sintering (means the power of sintering) also contributed to the densification of the samples. It can be concluded that the duration of sintering and the current of sintering also affect densification.…”

Microstructure Investigation of Mechanically Alloyed 316L-6Al-0.5Y2O3 Oxide Dispersion Strengthened Austenitic Steel Powder

“…Related to austenitic steel type, 316L stainless steel due to the excellent mechanical, irradiation, and corrosion resistance properties is widely used as a structural material in nuclear power plants [13]. Recently, due to high performance of 316L stainless steel at elevated temperature development of 316L ODS steel is embarking developed [14][15][16]. However, development of 316L ODS steel with additional element to improve performance of the material at elevated temperature is limited.…”