TY - JOUR
T1 - Current assisted extrusion of metallic alloys
T2 - Insight into microstructure formation and mechanical properties
AU - Novitskaya, E.
AU - Esquivel-Castro, T. A.
AU - Dieguez-Trejo, G. R.
AU - Kritsuk, A.
AU - Cahill, J. T.
AU - Díaz-de-la-Torre, S.
AU - Graeve, O. A.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/2/21
Y1 - 2018/2/21
N2 - 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.
AB - 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.
KW - Amorphous metal
KW - Microhardness
KW - SAM2×5
KW - Spark plasma extrusion
UR - http://www.scopus.com/inward/record.url?scp=85041393683&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2018.01.076
DO - 10.1016/j.msea.2018.01.076
M3 - Artículo
SN - 0921-5093
VL - 717
SP - 62
EP - 67
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
ER -