ISSN:
1013-9826
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:
Laser cladding of Co-base alloy on the sealing surfaces of nuclear valve clacks has beenperformed with a 5KW CO2 transverse flowing laser. The laser cladding was compared with plasmaspraying. Both laser cladded and plasma sprayed zones were characterized by optical and scanningelectron microscopes. The high temperature impact-slide wear resistance of laser cladded andplasma sprayed coatings were studied. The experimental results showed that compared with that ofplasma sprayed coating, the laser cladded coating has higher microhardness, more uniformmicrostructure, smaller grain size, lower dilution rate, and fewer pores and impurities. Theexperimental results also showed that the weight loss of plasma sprayed coating during the hightemperature impact-slide wear is two times larger than that of laser cladded coating
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.890.pdf
