Date of Award
Bachelor of Science in Metallurgical Engineering
Mr. C. Graverson
More than 3000 years ago, men began quenching and tempering tools to improve their physical properties. The ancient people found that iron was easier to shape and form in a heated condition. Charcoal was used as the fuel, and when the shaping process was completed, the smiths cooled the piece in the most obvious way, quenching in water. Quite unintentionally, these people stumbled on the process for improving the properties of iron, and the art of blacksmithing began.
Arentzen, Charles, "The Isothermal Transformation Curve for S.A.E. 6150" (1950). Bachelors Theses and Reports, 1928 - 1970. 305.
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