Surface tension of molten Ni-(Cr,Co,W) alloys was measured at the temperature of 1 773-1 873 K in an Ar+3%H2 atmosphere using an improved sessile drop *** segregation of Cr,Co and W in alloy was calculated and analyze...
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Surface tension of molten Ni-(Cr,Co,W) alloys was measured at the temperature of 1 773-1 873 K in an Ar+3%H2 atmosphere using an improved sessile drop *** segregation of Cr,Co and W in alloy was calculated and analyzed using Butler's *** results show a good agreement between measured and calculated *** surface tension of molten Ni-(Cr,Co,W) alloys decreases with increasing *** Ni-(Cr,Co,W) alloys,the element with lower surface tension tends to segregate on the surface of molten alloy while that with higher surface tension tends to segregate inside of the molten *** larger the differences in surface tension,atom radius and electron configuration between solvent and solute are,the more significant the segregation *** a result,Ni segregates onto the surface and Co and W segregate inside the alloys.
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