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Higher Study | Engineering Materials Science | Heat Treatment Process

How long should a steel component be heat treated before nitriding?
Which is false statement about tempering? Tempering is done to
The main purpose of spheroidising treatment is to improve
Induction hardening is the process of:
The following structure is obtained by Austempering process of heat treatment
Match the items in List-I with the corresponding items in the List-II.   List-I (Heat treatment)   List-II (Effect on properties) A. Annealing 1. Grain refinement B. Nitriding 2. Improves hardness of the whole mass C. Martempering 3. Improves surface hardness D. Normalizing 4. Reduce ductility Choose the correct option from the following:
The slowest cooling rate is achieved when steel is quenched in
When an alloy solidifies over a range of temperature, the resulting casting structure is
'Sorbite' is obtained when:
Copper becomes hard and brittle when mechanically worked, but it can be made soft again by annealing. Within what temperature range must you heat it to anneal it?
Statement (I): Salts like sodium chloride, sodium hydroxide when added to water to use as quenching media, cooling rate of quenching media will be increased. Statement (II): When salts are added to water, during quenching, distortion and crack appearance in the quenched steel components reduces.
Quenching is not necessary when hardening is done by-
What is the primary cause of distortion and cracking of the heat-treated steel part?
What is the purpose of annealing process?
What is the common surface hardening treatment in steel?
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