Meaning, Principle, Suitability, Applications, Advantages, Disadvantages | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Flame hardening is the process of selective hardening with a combustible gas flame as the source of heat for austenitizing.
Meaning, Suitability, Process, Advantages | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
As we know, in the carburising process the diffusing hardening element is carbon. In nitriding process, the diffusion involves nitrogen.
Meaning, Procedure, Reactions, Applications, Advantages, Disadvantages | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Cyaniding, also called liquid carburising, is a process of introducing both nitrogen and carbon to obtain hard surface of the steel components.
Meaning, Procedure, Applications, Advantages, Disadvantages | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Nitriding is a process of introducing nitrogen atoms, to obtain hard surface of steel components.
Meaning, Mechanism, Suitability, Advantages, Disadvantages, Case-Hardening Steels | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Liquid carburising, also known as salt carburising, is carried out in baths of molten salt which contains 20 to 50% sodium cyanide, 40% sodium carbonate, and varying quantities of sodium or barium chloride.
Meaning, Procedure, Process Mechanism, Reactions, Application | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Gas carburising overcomes the drawbacks/difficulties of pack carburising by replacing the solid carburising mixture with a carbon-providing gas.
Meaning, Process Mechanism, Drawbacks | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
In pack carburising, the components to be treated are packed into steel boxes, along with the carburising mixture, so that a space of roughly 50 mm exists between them.
Meaning, Process, Methods | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Carburising is the process in which carbon atoms are introduced onto the surface of low carbon steels to produce a hard case of surface, while the interior or core remains soft.
Definition, Typical Uses, Types | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
In many applications, it is desirable that the surface of the components should have high hardness, while the inside or core should be soft.
Meaning, Process, Application, Advantages, Disadvantages | Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Austempering is another type of interrupted quenching that forms bainite structure.
Meaning, Process, Application, Advantages
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
Martempering, also known as marquenching, is a interrupted cooling procedure used for steels to minimize the stresses, distortion and cracking of steels that may develop during rapid quenching.
Heat Treatment
Subject and UNIT: Engineering Materials and Metallurgy: Unit II: Heat Treatment
The quenching i.e., rapid cooling mechanism discussed in Section 2.4 has it own disadvantages.