Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2018-02, Vol.717, p.62-67

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2018

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• We present the devitrification behavior of an Fe-based amorphous metal (SAM2×5) during a current-assisted extrusion process. The alloy is of composition Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 and contains Y2O3 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.