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Title: Improving properties of Mg with Al–Cu additions

The present work reports improvement in tensile properties of the Mg matrix reinforced with micron-sized copper–aluminum particulate hybrids. The Al–Cu particulate hybrids were incorporated into the Mg matrix through powder metallurgy method. The synthesized alloys exhibited homogeneously dispersed Mg{sub 2}Cu particles in the matrix, therefore leading to a 110% increase in yield strength (221 MPa) and a 72% enhancement in ultimate tensile strength (284 MPa) by addition of 1.0 wt.%Al–0.6 wt.%Cu particle hybrids. Optical microscopy, scanning election microscopy, transmission electron microscopy and X-ray diffraction were used to investigate the microstructure and intermetallic phases of the synthesized alloys. - Highlights: • Mg matrix is reinforced with Al–Cu particulate hybrids. • Powder metallurgic method is used to fabricate the alloys. • Tensile strength and ductility were increased simultaneously.
Authors:
 [1] ;  [2] ;  [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [4]
  1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044 (China)
  2. (China)
  3. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China)
  4. Department of Physics, COMSATS Institute of Information Technology, Lahore (Pakistan)
Publication Date:
OSTI Identifier:
22403542
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 95; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; ALUMINIUM ALLOYS; COPPER; COPPER ALLOYS; DUCTILITY; MAGNESIUM ALLOYS; MATRIX MATERIALS; OPTICAL MICROSCOPY; POWDER METALLURGY; REINFORCED MATERIALS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; YIELD STRENGTH