MOLTEN METAL PHASE DURATION EFFECT ON THE STRUCTURE AND HARDNESS OF HIGH-CARBON FUSED COATING
Journal Title: TEHNOMUS - Year 2013, Vol 20, Issue 1
Abstract
The duration of the molten metal phase in the process of crystallization is an important factor determining the structure of the fused high-carbon coating.Theanalysishasshownthatthedurationofthe liquidmetalphase inaweldingbathis a function of the arc travel speed. Asthearctravelspeedincreases, theheatinputintothepartin question becomesinsufficientfora significant temperature rise within the phase transformation area. This results in a reduced molten metal crystallization time and fast generation of the deposited pad, thus creating an alloyed white iron-structured gradient coating.Basedontheresultsachievedandon thecurvesofrelationship of microhardnessvs. depthofthedeposited layer, we can see that the deposited layer has the maximum hardness at the distance of 1mm to 1.5 mm from the surface
Authors and Affiliations
Savulyak V. I. , Shenfeld V. Y. , Postupailo O. V. , Yanchenko A. B.
Keywords
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- EP ID EP98820
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