Assertion: annealing | /r/HasProperty | performed
Facets:
value: usually
type: DEGREE
value: by heating a material
type: MANNER
value: often
type: TEMPORAL
value: slowly
type: MANNER
Source sentences:
text: Tempering is usually performed after quenching, which is rapid cooling of the metal to put it in its hardest state.
text: Annealing is often performed after a material has undergone a hardening or cold working process to prevent it from brittle failure or to make it more formable for subsequent operations.
text: Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air.
text: Tempering is usually performed after quenching, which is rapid cooling of the metal to put it in its hardest state.
text: Tempering was usually performed by slowly, evenly overheating the metal, as judged by the color, and then immediately cooling, either in open air or by immersing in water.
text: Tempering is usually performed at temperatures as high as 950 °C (1,740 °F) for up to 20 hours.
text: Annealing is performed by heating a material; in this instance, the material is a metal.
text: Full annealing is performed by heating to a temperature between 760 and 830 °C for 90 minutes per 25 mm of thickness, followed by air quenching.