Record number :
2156044
Title of article :
Mechanical properties of Ti–W alloys reinforced with TiC particles
Author/Authors :
Choe، نويسنده , , Heeman and Abkowitz، نويسنده , , Susan and Abkowitz، نويسنده , , Stanley M. and Dunand، نويسنده , , David C.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
8
From page :
703
To page :
710
Abstract :
Composites consisting of a Ti–W solid-solution-strengthened matrix reinforced with TiC particles are produced by powder metallurgy. TiC additions increase strength but reduce ductility and matrix microhardness. Composites with 7.5 wt.% TiC show some tensile ductility (3–7%) but those with 15 wt.% TiC are brittle in tension. They are however strong and ductile in compression: Ti–15W/15TiC (wt.%) has a compressive yield strength exceeding 1200 MPa. This composite also shows tensile crack growth rates which are considerably faster than for pure titanium (by a factor 2) or Ti–15W (by a factor 2–6) and a fracture toughness which remains relatively high as compared to Ti–15W (21 vs. 34   MPa   m ).
Keywords :
mechanical properties , Titanium carbide , Titanium alloy , Powder metallurgy , Composite , Orthopedic
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Serial Year :
2008
Link To Document :
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