Stronger, hydrogen-resistant steel for demanding environments

An "International Centre for Advanced Materials" (BP ICAM) project is exploring the problem of designing hydrogen-resistant steel to operate in the demanding environments our oil and gas industry partners operate in.

[@andresereno]

really amazing, the job you are doing! keep on!

[@bhadeshia123]

Thank you!

[@asumazilla]

Great video. Beautiful shots to match your research :)

[@MTim-vj7xg]

when hydrogen in traps reach saturation, it can enter into the matrix from environment,and will embrittle the steel. it seems like that traps cann't prevent hydrogen embrittlement in those situation. is it right?

[@bhadeshia123]

+M. Tim www.msm.cam.ac.uk/phase-trans/2016/prevention.html

[@bhadeshia123]

+M. Tim Good thinking batman!

[@tommieeriksson271]

What is the name of this new alloy?

[@bhadeshia123]

www.phase-trans.msm.cam.ac.uk/2019/abrasion.html

[@MTim-vj7xg]

Why the hydrogen concentrate at crack tip can embrittle the steel and alter the fracture mechanism?

[@bhadeshia123]

+M. Tim The stress field attracts hydrogen

[@MTim-vj7xg]

+bhadeshia123 why hydrogen is attracted at the stress field can embrittle the steel ?

[@bhadeshia123]

There are many different mechanisms - you need to do a literature review.

[@EddieVBlueIsland]

Nobody really knows - some believe the s1 electron in hydrogen changes the metallic bond to an ionic bond halting dislocation movement. others the hydrogen precipitates as a gas between the grains and simply splits the grains by over-pressure. BTW it is believed that only tensile stresses and not shear or compression (- stress) attract hydrogen.

[@SyrianAtheist]

it sucks when u see where these people are, while you still trying to figure out ASME and AWS material grouping and P-number and stuff lol