Vacuum Hot Pressing of Oxide Dispersion Strengthened Ferritic Stainless Steels: Effect of Al Addition on the Microstructure and Properties

Journal of Manufacturing and Materials Processing

卷:4

Dharmalingam Ganesan¹  Prabhukumar Sellamuthu¹  KondaGokuldoss Prashanth² 

[1] Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India;

[2] Department of Mechanical and Industrial Engineering, Tallinn University of Technology, 19086 Tallinn, Estonia;

关键词: ferritic ODS steel;    mechanical alloying;    vacuum hot pressing;    X-ray diffraction;    hardness;   

DOI  :  10.3390/jmmp4030093

来源: DOAJ

【 摘 要 】

The present article investigates the fabrication of oxide dispersion strengthened (ODS) ferritic stainless steel (FSS). Three different ODS alloys with three different Al contents were fabricated, where the presence of Al-based oxides play a crucial role in determining the size of the oxide particles. Due to Ostwald ripening, the samples with Al show coarser oxide particles compared to the alloy without Al, which hampers the density of the fabricated samples and, hence, have reduced hardness levels. The present results suggest that the composition of the oxide present in ODS plays a crucial role in determining the properties of these samples.

【 授权许可】

Unknown