Published February 2018 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Department of Mechanical and Aerospace Engineering, University of California, San Diego, 9500 Gilman Drive - MC 0411, La Jolla, CA 92093-0411 (United States)
  • 2. Instituto Politécnico Nacional, CIITEC, Cerrada Cecati S/N, Azcapotzalco, C.P. 02250 CDMX (Mexico)

Description

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.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.msea.2018.01.076

Additional details

Identifiers

DOI
10.1016/j.msea.2018.01.076;
PII
S0921509318301060;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
717
Journal Page Range
p. 62-67
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
50043939
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
AMORPHOUS STATE; EXTRUSION; IRON; IRON ALLOYS; MICROHARDNESS; MICROSTRUCTURE; NANOPARTICLES; SCANNING ELECTRON MICROSCOPY; TESTING; YTTRIUM OXIDES
Descriptors DEC
ALLOYS; CHALCOGENIDES; ELECTRON MICROSCOPY; ELEMENTS; FABRICATION; HARDNESS; MATERIALS WORKING; MECHANICAL PROPERTIES; METALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PARTICLES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YTTRIUM COMPOUNDS

Optional Information

Copyright
Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.