The embodiments described herein rely on the ability to cast a distinct alloy into the head of an ingot, and to secure a reliable metallurgical bond between the parent alloy of the ingot and the softer alloy. The timing of the addition of the distinct alloy and the composition of the distinct alloy are important for success, and in turn reduction in the alligatoring defect.

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This work is licensed under a Creative Commons Attribution 4.0 License.