Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Key engineering materials
Vol. 348-349 (Sept. 2007), p. 221-224
ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
TiCp/ZA-12 composites have been fabricated by XDTM method and stirring-castingtechniques. Microstructure of the composites has been studied by means of scanning electronmicroscopy (SEM) and transmission electron microscopy (TEM). The results show that TiC particlesdistribute uniformly in ZA-12 matrix alloy. The interface between reinforcements and matrix alloy isvery clean, and there is not interface reaction between TiC particles and ZA-12 matrix alloy. The testsfor mechanical properties reveal that the tensile strength, yield strength, elastic modulus and hardnessof the composites are improved obviously due to the incorporation of TiC particles. Thestrengthening mechanisms are attributed to the following factors: dispersion strengthening of TiCparticles, grain refinement of ZA-12 matrix alloy and high-density dislocations existing in ZA-12alloy
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.348-349.221.pdf
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