Current assisted extrusion of metallic alloys: Insight into microstructure formation and mechanical properties

E. Novitskaya, T. A. Esquivel-Castro, G. R. Dieguez-Trejo, A. Kritsuk, J. T. Cahill, S. Díaz-de-la-Torre, O. A. Graeve

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

© 2018 Elsevier B.V. We present the devitrification behavior of an Fe-based amorphous metal (SAM2×5) during a current-assisted extrusion process. The alloy is of composition Fe 49.7 Cr 17.7 Mn 1.9 Mo 7.4 W 1.6 B 15.2 C 3.8 Si 2.4 and contains Y 2 O 3 nanoparticles as a reinforcing phase. Detailed analysis of phase formation and microstructural analysis verifies that the SAM2×5 devitrified (SAM2×5-Dev) materials can be successfully extruded up to several centimeters in length with extrusion temperatures in the range between 1000 °C and 1100 °C. Subsequent analysis of mechanical properties via microhardness testing, together with microstructural characterization by scanning electron microscopy, demonstrates that the properties of the extruded SAM2×5-Dev composites significantly surpass those of common steels. These results open new horizons in the area of structural amorphous materials and expand their potential industrial processing.
Original languageAmerican English
Pages (from-to)62-67
Number of pages55
JournalMaterials Science and Engineering A
DOIs
StatePublished - 21 Feb 2018
Externally publishedYes

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amorphous materials
microhardness
horizon
Extrusion
steels
mechanical properties
crystallization
Mechanical properties
nanoparticles
microstructure
Microstructure
scanning electron microscopy
composite materials
Steel
metals
Microhardness
Metals
Nanoparticles
Scanning electron microscopy
temperature

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Novitskaya, E. ; Esquivel-Castro, T. A. ; Dieguez-Trejo, G. R. ; Kritsuk, A. ; Cahill, J. T. ; Díaz-de-la-Torre, S. ; Graeve, O. A. / Current assisted extrusion of metallic alloys: Insight into microstructure formation and mechanical properties. In: Materials Science and Engineering A. 2018 ; pp. 62-67.
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Current assisted extrusion of metallic alloys: Insight into microstructure formation and mechanical properties. / Novitskaya, E.; Esquivel-Castro, T. A.; Dieguez-Trejo, G. R.; Kritsuk, A.; Cahill, J. T.; Díaz-de-la-Torre, S.; Graeve, O. A.

In: Materials Science and Engineering A, 21.02.2018, p. 62-67.

Research output: Contribution to journalArticle

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AU - Esquivel-Castro, T. A.

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AU - Kritsuk, A.

AU - Cahill, J. T.

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