Working Paper Article Version 1 This version is not peer-reviewed

14Cr-ODS Steel Produced by SPS from Mechanical Milled Powders with High Efficiency Oxide Precursors Incorporation

Version 1 : Received: 12 February 2021 / Approved: 17 February 2021 / Online: 17 February 2021 (10:10:06 CET)

How to cite: Macia, E. 14Cr-ODS Steel Produced by SPS from Mechanical Milled Powders with High Efficiency Oxide Precursors Incorporation. Preprints 2021, 2021020366 Macia, E. 14Cr-ODS Steel Produced by SPS from Mechanical Milled Powders with High Efficiency Oxide Precursors Incorporation. Preprints 2021, 2021020366

Abstract

Currently, one of the biggest issues when developing an ODS alloy is the competition established between the different oxide precursors during the precipitation of oxides which nature depends on their chemical composition. In the presence of various precursors, usually the one with the highest affinity to oxygen leads to the absence of the other oxides. In this work, a new process to equilibrate the local concentration of species and to decrease the competition among them is explained. A unique compound, containing the diverse oxide precursors as one complex oxide, is introduced in a prealloyed 14Cr Steel powder via mechanical alloying. Thus, generating environments enriched in Y, Ti and Zr which, after consolidation, refine the oxides precipitation improving the thermal stability of the alloy. SPS were used as consolidation technique to guarantee shorter sintering times and to maintain the nanostructure obtained. Mechanical properties were tested by tensile tests and Vickers microhardness.

Subject Areas

ODS steel; mechanical alloying; spark plasma sintering; zirconium; co-precipitation

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.