ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A steel/cemented carbide couple is selected to generate a tough/hard two layers material.The sintering temperature and composition are chosen according to phase equilibria data. Thechoice of optimal sintering conditions needs experimental studies. First results evidence liquidmigration from the hard layer to the tough one, leading to porosity in the hard region. The study ofmicrostructure evolution during sintering of the tough material (TEM, SEM, image analysis)evidences the coupled mechanisms of pore reduction and WC dissolution, and leads to temperatureand time ranges suitable to limit liquid migration. The sintering of the two layer material is thenshown to need further compromises to avoid interface crack formation due to differentialdensification
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.534-536.1529.pdf
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