Interesting topic! Also easy to follow as a Materials Science student. Wouldn't mind if you would go more into depth concerning the theory :) Big supporter of your videos here!
Hi, appreciate your insight on this question, usually we consider hydrogen embrittlement on high strength steel, however for low strength material, like 245mpa line pipe, is there any research been done to simulate cold damage (say during handling or shipment) and subject to heat? say if a 245Mpa pipe, had damage during transport, and then went into galvanising with heat, would there be hydrogen embrittlement from HCL of the pickling process in galvanising?
I would like to hear more about your research in hydrogen embrittlement. This topic is being overlooked over the past years without realising how relevant this is in the material and welding industry.
Thanks for reaching out. Please have a look at these two links where we summed up our research on hydrogen and hydrogen embrittlement: www.mpie.de/4595091/all-about-hydrogen www.mpie.de/4200660/materials-under-harsh-environments-and-their-stability-of-surfaces-and-interfaces
Hydrogen embrittlement is really a form of LME (liquid metal embrittlement) driven by electron structure - helium has no effect on metals since it diffuses very slowly through most metals with out interaction, likewise some metals are embrittled very easily vis. aluminum embrittled by gallium and mercury - steel/iron with molten copper by nickel does no seem to embrittle anything.
If you mean using coatings as corrosion protection: this is done since a long time, e.g. think about coatings for metal sheets. However, we are also working on more efficient coatings and also on questions concerning scratches in coatings, thus locally ineffective corrosion-protection.
Interesting topic! Also easy to follow as a Materials Science student. Wouldn't mind if you would go more into depth concerning the theory :) Big supporter of your videos here!
Thank you - we will try to keep that in mind :)
Hi, appreciate your insight on this question, usually we consider hydrogen embrittlement on high strength steel, however for low strength material, like 245mpa line pipe, is there any research been done to simulate cold damage (say during handling or shipment) and subject to heat? say if a 245Mpa pipe, had damage during transport, and then went into galvanising with heat, would there be hydrogen embrittlement from HCL of the pickling process in galvanising?
I would like to hear more about your research in hydrogen embrittlement. This topic is being overlooked over the past years without realising how relevant this is in the material and welding industry.
Thanks for reaching out. Please have a look at these two links where we summed up our research on hydrogen and hydrogen embrittlement:
www.mpie.de/4595091/all-about-hydrogen
www.mpie.de/4200660/materials-under-harsh-environments-and-their-stability-of-surfaces-and-interfaces
Hydrogen embrittlement is really a form of LME (liquid metal embrittlement) driven by electron structure - helium has no effect on metals since it diffuses very slowly through most metals with out interaction, likewise some metals are embrittled very easily vis. aluminum embrittled by gallium and mercury - steel/iron with molten copper by nickel does no seem to embrittle anything.
What I find interesting is hydrogen does bad things and nitrogen does good things. What are the mechanisms for both?
What happens if you spray paint the metal?
If you mean using coatings as corrosion protection: this is done since a long time, e.g. think about coatings for metal sheets. However, we are also working on more efficient coatings and also on questions concerning scratches in coatings, thus locally ineffective corrosion-protection.
NASA's learning it the hard way. 😉