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Chemical and structural inhomogeneity of the centrifugally casted Cr-Mo and Cr-Mo-V steel tubes
This study presents the casting conditions and experimental results of chemical
elements distribution, their structure and hardness in axial direction and in
the cross section of centrifugally casted tubes of different diameters and wall
thicknesses made of Cr-Mo and Cr-Mo-V steel. Analyses of the chemical
composition have shown that in centrifugally casted tubes the more intensive
segregation of elements appears in the radial than in the axial direction. The
apparent inhomogeneity of structure and hardness in the cross section has also
been examined, as well as modelling of the
Key words: centrifugal casting, steel Cr-Mo,
steel Cr-Mo-V, tube, chemical composition, macrostructure, microstructure. |