I have recently encountered a problem with weld seam corrosion. I read that the ferrite enriched-zone is more susceptible to corrosion but I really don't understand why and I would like to. Does it have something to do with the low carbon content in ferrite?
I have recently encountered a problem with weld seam corrosion. I read that the ferrite enriched-zone is more susceptible to corrosion but I really don't understand why and I would like to. Does it have something to do with the low carbon content in ferrite?
What is the mechanism behind selective weld seam corrosion? In a low-carbon steel, why is a ferrite-enriched zone more susceptible to corrosion? Is acicular ferrite more susceptible than ferrite, if so, why?