Why methane appears in solid steel & how to detect it

Take your personal data back with Incogni. Use code SCIENCE at the link below and get 60% off an annual plan: https://incogni.com/science High Temperature Hydrogen Attack (HTHA) is a problem in the fertiliser industry and others when bubbles of methane form in steel. I use Non Destructive Testing (ultrasonic scanning) to see them. Here's why it happens. Evident Inspection Technologies (now part of Wabtec Corporation): https://ims.evidentscientific.com for all your non-destructive testing needs! USCSB video about the Tesoro's Anacortes Refinery: https://www.youtube.com/watch?v=8vPaQYM-tWs You can buy my books here: https://stevemould.com/books You can support me on Patreon and get access to the exclusive Discord: https://www.patreon.com/stevemould Twitter: http://twitter.com/moulds Instagram: https://www.instagram.com/stevemouldscience/ Facebook: https://www.facebook.com/stevemouldscience/ TikTok: https://www.tiktok.com/stevemould Buy nerdy maths things: http://mathsgear.co.uk