What is the process of nitriding?

nitriding, process for hardening the surface of steel objects by introducing nitrogen (N) into it, where it combines with iron and other alloying elements to form hard metallic nitrides.

What is Nitro carburizing heat treatment?

Nitriding (N) and nitrocarburizing (NC) are thermochemical treatments that diffuse nitrogen and carbon into the surface of metals. Nitriding is used on ferrous, titanium, aluminum, and molybdenum alloys, and most commonly on low-carbon, low-alloy steels. Nitrocarburizing is only used on ferrous alloys.

What is gas nitriding process?

Gas nitriding is a form of steel heat treatment in which one uses heat to diffuse nitrogen-rich gas onto the surface of the metal with the intention of hardening it. The nitride hardening process integrates into the bulk material, allowing the portion of metal below the surface layer to remain soft.

What is Tenifer treatment?

Ferritic nitrocarburizing or FNC, also known by the proprietary names Tenifer, Tufftride and Melonite as well as ARCOR, is a range of proprietary case hardening processes that diffuse nitrogen and carbon into ferrous metals at sub-critical temperatures during a salt bath.

Which steels can be nitrided?

Nitriding steel grades contain strong nitride formers such as molybdenum, vanadium, aluminum or chromium. Ovako’s family of Hybrid Steel can very favorably be used for nitriding. Nitriding is a heat-treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface.

What is the hardness achieved in the carbonitriding process?

Carbonitriding is often applied to inexpensive, easily machined low carbon steel to impart the surface properties of more expensive and difficult to work grades of steel. Surface hardness of carbonitrided parts ranges from 55 to 62 HRC.

What is carburizing and nitriding?

Nitriding and carburizing are the two most common heat treatment practices for surface hardening functional components. The main difference is that in nitriding, nitrogen atoms are made to diffuse into the surface of the parts being processed, whereas in carburizing, carbon is used.

Can you weld nitrided steel?

The only way you can attempt to weld nitrided steel is to either locally grind the hardened layer until it has been removed from the surface of the steel OR utilize a special formulated weld rod for tool steel weld repairs that can tie up the nascent nitrogen in weld metal slag.

What is FNC coating?

Ferritic Nitro-Carburizing (FNC) is a thermochemical surface hardening process that involves diffusion of both nitrogen and carbon into the part. This treatment is mainly used to improve wear and fatigue properties and to enhance corrosion resistance. Low-alloy steel parts are suitable for this process.

What is the difference between Carbonitriding and nitrocarburizing?

Nitrocarburizing also entails the dissolution of carbon and nitrogen into a workpiece, but, compared to carbonitriding, more nitrogen is used in nitrocarburizing. Case depths as a result of nitrocarburizing are typically more shallow compared to carbonitriding.