Fabrication and micro-structural evaluation of ODS austenitic stainless steels through mechanical alloying

This work is aimed at developing an oxide dispersion strengthened (ODS) austenitic stainless steels by Mechanical Alloying (MA) process. Two different alloys such as Alloy A and Alloy B were prepared from pure elemental powders with the addition of Y2O3 (Yttrium oxide). The chemical composition of A...

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Bibliographic Details
Main Authors: Kumar, P. Kishore, Sai, N. Vijaya, Krishna, A. Gopala, Renganathan, N.G.
Format: Conference Proceeding
Language:English
Subjects:
Crystallite size
Microstructure
Milling time
Oxide dispersion strengthened alloy
Phase transition
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Summary:This work is aimed at developing an oxide dispersion strengthened (ODS) austenitic stainless steels by Mechanical Alloying (MA) process. Two different alloys such as Alloy A and Alloy B were prepared from pure elemental powders with the addition of Y2O3 (Yttrium oxide). The chemical composition of Alloy A and Alloy B was 17Cr-8Ni-8Mn and 17Cr-8Ni-8Mn-0.5Ti-0.3Y2O3. Structural evaluation was studied by using XRD and SEM. The crystallite size of Alloy A and Alloy B powders after 30 h of ball milling were 250 nm and 14 nm. It was found that the Alloy B showed higher density than Alloy A.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2019.04.207