Which metallurgical consequence resulted from exposing crucible steel to prolonged high-temperature soak?

💡 Explanation

When crucible steel is soaked at high temperature for extended periods, grain growth occurs because thermal energy allows atoms to diffuse, leading to larger grains and carbide precipitation at the grain boundaries. Therefore formation of grain boundary carbides results, rather than increased carbon, improved ductility, or reduced hardness which require different thermal processes.

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