@article{0407b8c23eb54fcc898f9cd67226d820,
title = "The role of hydrogen in hydrogen embrittlement fracture of lath martensitic steel",
abstract = "The microstructure associated with the hydrogen-induced features flat and quasi-cleavage on the fracture surface of a lath martensitic steel has been visualized in a transmission electron microscope by using focused-ion beam machining to extract samples perpendicular to the fracture surface. Beneath both hydrogen-induced fracture surfaces there is direct evidence, in the form of intense slip bands and destruction of lath boundaries, for significant plasticity. These observations are considered in terms of the fundamental hydrogen embrittlement mechanisms, and the conclusion is reached that the failure is driven by a hydrogen-enhanced and plasticity-mediated decohesion mechanism.",
keywords = "Hydrogen embrittlement, Intergranular and quasi-cleavage fractures, Martensite, Scanning electron microscopy, Transmission electron microscopy",
author = "Akihide Nagao and Smith, {Cynthia D.} and Mohsen Dadfarnia and Petros Sofronis and Robertson, {Ian M.}",
note = "Funding Information: This work was supported by DOE Grant GO15045, DOE/NNSA Grant DEFG52-09NA29463 and funding by JFE Steel Corporation. Microscopy work was carried out in the Center for Microanalysis of Materials in the Frederick Seitz Materials Research Laboratory at the University of Illinois. The authors would like to acknowledge Prof. B. Heuser at the University of Illinois and Dr. B. Somerday at the Sandia National Laboratories for fruitful discussions. The authors would also thank Mr. C. Gulyash at the University of Illinois for machining specimens and Mr. S. Nagasawa at J-Science Lab Co., Ltd. for assisting with the start-up of a hydrogen thermal desorption analysis system. A.N. acknowledges and thanks laboratory members of the I.M.R. group, especially M.L. Martin, V. McCreary, J. Kacher, David William Gross and B.P. Eftink, for assistance, support and discussions. P.S. and I.M.R. acknowledge the support from the World Premier International Research Center Initiative (WPI), MEXT, Japan, through the International Institute for Carbon-Neutral Energy Research (I2CNER) of Kyushu University. I.M.R. acknowledges the support of the National Science Foundation. ",
year = "2012",
month = aug,
doi = "10.1016/j.actamat.2012.06.040",
language = "English (US)",
volume = "60",
pages = "5182--5189",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "13-14",
}