METHODS OF STEEL HEAT TREATMENT

Содержание

1. METHODS OF STEEL HEAT TREATMENT
2. Quenching is a heat treatment when metal
3. Tempering is a heat treatment applied to steel and
4. Tempering temperatures depend on the composition of
5. Annealing is a heat treatment in which a material
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Quenching is a heat treatment when metal at a high temperature is rapidly cooled by immersion in water or oil. Quenching makes steel harder and more brittle, with small grains structure.

Слайды и текст этой презентации

Слайд 1Yeldos Abitayev
«METHODS OF STEEL HEAT TREATMENT»

Слайд 2Quenching is a heat treatment when metal at a high

temperature is rapidly cooled by immersion in water or oil. Quenching makes

steel harder and more brittle, with small grains structure.

Quenching is a heat treatment when metal at a high temperature is rapidly cooled by immersion in water or

Слайд 3Tempering is a heat treatment applied to steel and certain alloys. Hardened

steel after quenching from a high temperature is too hard

and brittle for many applications and is also brittle. Tempering, that is re-heating to an intermediate temperature and cooling slowly, reduces this hardness and brittleness

Tempering is a heat treatment applied to steel and certain alloys. Hardened steel after quenching from a high temperature

Слайд 4Tempering temperatures depend on the composition of the steel but

are frequently between 100 and 650 °C. Higher temperatures usually

give a softer, tougher product. The color of the oxide film produced on the surface of the heated metal often serves as the indicator of its temperature.

Tempering temperatures depend on the composition of the steel but are frequently between 100 and 650 °C.

Слайд 5Annealing is a heat treatment in which a material at high temperature

is cooled slowly. After cooling the metal again becomes malleable

and ductile (capable of being bent many times without cracking).
All these methods of steel heat treatment are used to obtain steels with certain mechanical properties for certain needs.