Mechanical load induced hydrogen charging of retained austenite in quenching and partitioning (Q&P) steel

Hydrogen trapping of carbides during high temperature gaseous hydrogenation

“…However, due to the easy penetration and diffusion of hydrogen in steels, safe storage and transportation of the hydrogen gas (via retrofitting of the existing pipeline network) remain a crucial concern [3][4][5][6][7][8][9][10][11]. Moreover, the use of hydrogen as a fuel for vehicles also require the development of materials with both high strength and high HE resistance [12,13].Upon hydrogen entry in the metal, the hydrogen atoms may diffuse towards critical points in the microstructure and assist there in crack formation and growth. Consequently, a possible strategy to enhance a steel's resistance against HE is the introduction of well-designed traps for hydrogen in the steel microstructure.…”