|Title||Enhancing Hydrogen Embrittlement Resistance of Lath Martensite by Introducing Nano-Films of Interlath Austenite|
|Publication Type||Journal Article|
|Year of Publication||2015|
|Authors||Wang, M, Tasan, CC, Koyama, M, Ponge, D, Raabe, D|
|Journal||Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science|
|Pagination||3797 - 3802|
Partial reversion of interlath austenite nano-films is investigated as a potential remedy for hydrogen embrittlement susceptibility of martensitic steels. We conducted uniaxial tensile tests on hydrogen-free and pre-charged medium-Mn transformation-induced plasticity-maraging steels with different austenite film thicknesses. Mechanisms of crack propagation and microstructure interaction are quantitatively analyzed using electron channelling contrast imaging and electron backscatter diffraction, revealing a promising strategy to utilize austenite reversion for hydrogen-resistant martensitic steel design.