Most plasma nitriding systems in North America have been developed on the basis of continuous DC plasma generation. There are, however, a small number of pulsed-DC plasma-generation systems. The question is often asked which system should I choose?

A recent seminar was held that was focused on gear distortion. While the distortion aspect of the seminar was extremely interesting and very well presented, the impact on the writer

The process of gas nitriding is perhaps the simplest of all of the diffusion surface-treatment processes. The process simply involves the decomposition of ammonia by heat and steel (catalyst).The decomposition

Distortion is the “bane” of all heat treaters. Distortion is always laid at the doorstep of the heat treater. This is simply because distortion always occurs at heat treatment. Because

Plasma CarburizingPlasma carburizing is characterized by two things – plasma generation and low pressure. In order for the gas ionization to take place, it is necessary for the furnace to

After low-pressure carburizing, one can quench as normal into, say, hot oil (if, of course, the vacuum furnace has a built-in integral-quench chamber).

Q: What is the difference between plasma carburizing and low-pressure carburizing? A: Firstly, the reason why we use plasma or low-pressure carburizing as opposed to gas carburizing is quite simple

Question: What causes the white layer (compound layer) to form during the plasma-nitride process? Answer: The white layer formation is a function of: Process gas ratios Processed steel chemistry If

What are the methods available for the deposition of a thin-film hard coating for such surface coatings as titanium nitride, titanium carbonitride and titanium aluminum nitride?

Question: We nitride AISI 4140 steel (bar stock) using the gas nitriding process, and we are experiencing problems of the nitride case exfoliating (peeling off). What is causing this?