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Its cost is very much less than plasma nitriding.

Following are the benefits of the gas nitriding: The nitrogen formed then spread on the surface of the metal forming nitride layer. During gas nitriding, ammonia comes in contact with heated metal and this ammonia separates into hydrogen and nitrogen. To know more about how Plasma Nitriding is done, watch the video given below: In the plasma nitriding process, along with the nitrogen certain amount of hydrogen and argon are also used. For example, stainless steel is nitrated at the temperature of about 420 º C without forming any type of the precipitates as well as without disturbing any corrosion resistivity. The plasma nitriding does not depend on any type of temperature that’s why we have selected such a broad range of temperature. Plasma nitriding process is carried out in the temperature range of 260 to 600 º C. Sometimes, Physical Vapour Deposition (VPD) combines with the plasma nitriding to get more benefits of the process.

Not only the durability of the metal parts increases but its performance also increases.

Plasma nitriding causes an increase in the lifespan of the metal.

Dr.Bernhardt Berghus from the Germany invented this Plasma nitriding. It is the perfect process for treating steels. In the entire process of the plasma nitriding, nitrogen is used.

In plasma nitriding, an effective electric field is generated which results in ionization of the gas molecules. Plasma nitriding is also termed as ion nitriding or glow-discharge nitriding.

Plasma nitriding is mostly used in industrial applications. What is Annealing Process and Why it is done? (i) Plasma Nitriding.Nitriding is again further divided into three main processes like: Nitriding has a very larger number of applications like it is used in making gears, injectors, screws, camshafts and various tools.

There are some exceptions to the previous statement like titanium and molybdenum. It is used mostly in case of steels that contain low carbon content. Thus, nitriding is one of the part of the case hardening. Nitriding is one of the heat treatment processes in which the nitrogen spreads over the surface of the metal to form its layer on the surface of the metal. To know how Carburizing is done watch the video: But these changes are very small as compared to other processes of heat treatment. In the process of the Carburizing, various hardening metals are used like Carbon Monoxide, Barium carbonate, Sodium Cyanide, etc.Īfter completing the carburizing, you may see the changes in the size and shape of the original metal.

Do you know the purpose of the carburizing? The only purpose of the carburizing is to make the metal harder by heating it in a very short interval of time. In the carburizing technique, the metal is heated in the presence of the charcoal or carbon-monoxide. CarburizingĬarburizing is one of the types of the heat treatment processes and it is also called as the carburization. There are different processes of case hardening 1. And this layer provides greater hardness than the original surface of the metal. In such cases, the case hardening produces a layer of nitrogen or carbon on the surface of the metal. There are certain metals like iron or steel, that have very low hardness. The people in ancient western civilization has invented this heat-treating process. DefinitionĬase hardening is the process through which metal surface is strengthened by covering the surface of the workpiece by the layer of another harder material and this layer is more durable.Ĭase hardening is being practiced in western countries for a long times. But you may have a question that what is the definition of It. Some of you may be confused between the case hardening and surface hardening but you know what both the terms are exactly similar. So, what are you waiting for? Let’s get started. Do you want to know the exact process of the case hardening? Well, keep reading this article to have exact information about the case hardening.