Endorsed by industry authorities like the American Foundrymen’s Association, the American Society for Metals, the American Society for Testing and Materials, and the Society of Automotive Engineers, this comprehensive glossary of heat-treating terms provides a valuable resource. Aimed at providing clarity rather than specifications, this glossary intentionally omits temperatures, focusing on precise definitions crucial for understanding the intricacies of heat treatment.
Key Terms Explored:
The article delves into essential heat-treating terms, offering concise definitions for concepts integral to the heat-treating process. One such term is “Aging,” elucidating the time-temperature-dependent changes in the properties of certain alloys, particularly the precipitation from a solid solution.
The glossary unravels the nuances of annealing, a treatment involving heating, holding at a suitable temperature, and controlled cooling. It covers various annealing types such as Black Annealing, Blue Annealing, Box Annealing, Bright Annealing, and more. Each type serves distinct purposes, ranging from improving machinability to enhancing mechanical or electrical properties.
Black Annealing and Blue Annealing:
The article sheds light on specific annealing processes like Black Annealing, primarily used for sheet, strip, or wire, and Blue Annealing, a technique involving heating hot-rolled sheet within the transformation range and subsequent air cooling to soften the metal, with the formation of a bluish oxide on the surface as an incidental outcome.
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