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:
The micro-plasma arc welding technology(MPAW) was used to remanufacture theexhaust valve of W615 engine. The ST6 Co alloy powder was selected as overlaying material, theprocessing parameters of overlaying was optimized considering the geometry demand of depositedlayer, and the current downslope method was adopted to weaken the arc crater. The microstructurecharacteristics and the micro-hardness of the weld were investigated, no defects were found in thedeposited layer or at the interface, and the heat-affected zone among joint was not evident. Themaximum hardness situated at the top layer being 657.8HV, with a slight decrease towards thebottom layer and fusion zone
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.373-374.330.pdf
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