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Microstructure and Mechanical Properties of Hot Pressed Oxide Dispersion Strengthened NITRONIC-60 Austenitic Stainless Steels Developed Through Mechanical Alloying by R. Mariappan; J. Chandradass; M. Murali is a Engineering article available to read on EtoBox.
What is Microstructure and Mechanical Properties of Hot Pressed Oxide Dispersion Strengthened NITRONIC-60 Austenitic Stainless Steels Developed Through Mechanical Alloying about?
In the present study, three different steels were developed from water atomized pre-alloyed powder such as N60 (17Cr-8Mn-4Si), MM-N60 (Mechanical Milled 17Cr-8Mn-4Si) and MM-N60-Y (Mechanical Milled 17Cr-8Mn-4Si-0.3Y 2 O 3 ) with and without addition of Yttria. MM-N60 and MM-N60-Y were mechanically milled under high energy ball mill for the period of 2, 4, 6, 8 and 10 h to obtain nanocrystallite structure followed by hot pressing at the temperature of 1250 ± 10 °C with a pressure level of 56 MPa. For comparison, the un-milled powder was also consolidated into a bulk sample under the same processing condition. The microstructure of all three hot-pressed samples was examined under optical, scanning electron, and transmission electron microscopes. Using a Hounsfield tensometer and Vicker's microhardness tester, the mechanical characteristics of these samples were assessed. The grain size of hot pressed samples from the milled powders is lesser than the compact of the un-milled powder. The Y 2 O 3 added austenitic stainless steel (MM-N60-Y) shows the least austenite grains size around 2.8 μm compared to MM-N60 (without Y 2 O 3 ). Such a highly refined austenitic grain with Y 2 O 3 disp
Who reads Microstructure and Mechanical Properties of Hot Pressed Oxide Dispersion Strengthened NITRONIC-60 Austenitic Stainless Steels Developed Through Mechanical Alloying?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- R. Mariappan; J. Chandradass; M. Murali
- Publisher
- Springer Science and Business Media LLC
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)