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- Jul 22, 2009
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True, but my search results would suggest that nitrogen DOES help with corrosion:rust is hydrated iron oxide, water is important, carbon is not
http://www.keytometals.com/page.aspx?ID=CheckArticle&site=kts&LN=EN&NM=202All steels contain some nitrogen which is effective in improving the mechanical and corrosion properties of steels if it remains in solid solution or precipitates as very fine and coherent nitrides. When nitrogen is added to austenitic steels it can simultaneously improve fatigue life, strength, work hardening rate, wear and localized corrosion resistance.
High nitrogen martensitic stainless steels show improved resistance to localized corrosion (pitting, crevice and intergranular corrosion) over their carbon containing counterparts. Because of this, the high nitrogen steels are being considered a new promising class of engineering materials.
It doesn't really seem to touch up on the details of why that is however. But the source does seem to suggest that nitrogen steels would have high toughness as well as improved work hardening(sort of like H1).
Offhand I would say Vanax75 might be like S90V but with better corrosion resistance and toughness, even at Rc 60-61 VS Rc 57-59 IIRC. But the thing is, I kind of get the feeling that it would be even more corrosion resistant than the 420 steel that it's bonded with. But I suppose it wouldn't be the first time it's happened(Speedform).