Synthesis And Stability Of The Austenite Phase In Mechanically Alloyed Fe–Cr–Ni Alloys

Keywords

Electron microscopy; Mechanical alloying; Microstructure; Nanocrystalline materials; X-ray techniques

Abstract

Fe–18Cr–xNi (x=8, 12, and 20) elemental powder blends were mechanically alloyed to synthesize and establish the stability of the austenite phase in Fe–Cr–Ni alloys. For the powders with 8 and 12Ni, the resulting structure after milling was austenite which had eventually transformed to martensite. But, for the powder with 20Ni, the powder was fully austenitic. The time to start for the formation of the austenite phase decreased with an increase in the Ni content. The phase formation was confirmed by XRD and high-resolution microscopy techniques and a new phase diagram was proposed outlining the stability region of the austenite phase in the ternary Fe–Cr–Ni alloys.

Publication Date

1-15-2017

Publication Title

Materials Letters

Volume

187

Number of Pages

140-143

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.matlet.2016.10.084

Socpus ID

84993960643 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84993960643

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