martempering

martempering

[′mär‚tem·pə·riŋ]
(metallurgy)
Quenching austenitized steel to a temperature just above, or in the upper part of, the martensite range, holding it at this point until the temperature is equalized throughout, and then cooling in air to room temperature. Also known as marquenching.
References in periodicals archive ?
This process, known as marquenching, or martempering, also may require a subsequent tempering operation.
Furthermore, unlike martempering, no subsequent tempering operation is required.