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:
Sintered stainless steel has a wide range of applications mainly in the automotiveindustry. Properties such as wear resistance, density and hardness can be improved by addition ofnanosized particles of refractory carbides. The present study compares the behavior of the sinteringand hardness of stainless steel samples reinforced with NbC or TaC (particles size less than 20 nm)synthesized at UFRN. The main aim of this work was to identify the effect of the particle size anddispersion of different refractory carbides in the hardness and sintered microstructure. The sampleswere sintered in a vacuum furnace. The heating rate, sintering temperature and times were20°C/min, 1290ºC and 30, 60 min respectively. We have been able to produce compacts with arelative density among 95.0%. The hardness values obtained were 140 HV for the reinforcedsample and 76 HV for the sample without reinforcement
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.591-593.294.pdf
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