Welding Metallurgy of
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Cites methods from "Welding Metallurgy of"
...Based on thismicrostructural observation and Fe-17Cr-C pseudo-binary phase diagram [25], it can be concluded that the experienced peak temperature is higher than 1000oC where the material experiences partial austenitisation....
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Cites background from "Welding Metallurgy of"
...Temperature distribution Based on the following simplifying assumptions (Kou, 2003): • Steady-state heat ow; • Point heat source; • Negligible heat of fusion; • Constant thermal properties; • No heat losses from the workpiece surface; • No convection in the weld pool....
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Cites background from "Welding Metallurgy of"
...Therefore, in the cladded layer, the G/R value keeps decreasing, resulting in the columnar-to-equiaxed transition....
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...Generally, a high G/R value will cause a fine grain structure [8]....
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...The growth of columnar grains tends to form under higher G/R values while that of equiaxed grains tends to form under lower G/R values [17]....
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...This makes G/R reach a maximum value in the middle of the cladded layer, which results the grain size in the middle of the cladded layer being smaller than in other parts....
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...The solidification morphology of metal is usually determined by the temperature gradient (G) and solidification velocity (R) [8,17]....
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References
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