IRT M2P

When I wrote my blog on LPCN (Low Pressure CarboNitriding), I had no idea it would get such a response. However, I was just trying to logically summarize what Přenosil claimed back in 1964 in his legendary publication „Nitrocementace/Carbonitriding“. The link is here: https://www.jstconsultancy.cz/?s=nitrocementace

An article was recently published on the French website Traitments & Matériaux (https://traitementsetmateriaux.fr/ ) about the development of the LPCN process on the ECM Flex furnace at the IRT M2P institute. It’s a lot of acronyms, but behind it lies an interesting institution that deals, among other things, with the development of heat treatment processes. You can download the brochure here  https://www.irt-m2p.fr/sites/default/files/2021-04/brochure-thermochemical-heat-treatment_0.pdf

And what is interesting about it? Well, exactly what I have already described. The saturating of the steel surface with nitrogen must take place in the first step, before the actual carburizing. Even though it is in French, it is understandable. And for those who have LPC at their disposal, it is also a good guide to LPCN. The link is here: https://traitementsetmateriaux.fr/img/825/doosier-1.pdf

This article has a sequel, and you can find it here: https://traitementsetmateriaux.fr/img/c75/dossier-2.pdf

This confirms once again what Přenosil claimed 60 years ago: Residual austenite may not always be just an unwanted structural component.

Jiří Stanislav

May 23, 2025