Journal
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume 46A, Issue 6, Pages 2323-2341Publisher
SPRINGER
DOI: 10.1007/s11661-015-2836-1
Keywords
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Funding
- Department of Energy, Office of Science, Basic Energy Sciences [ACO9-76EROll98]
- Department of Energy, Energy Efficiency and Renewable Energy [GO15045]
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) - World Premier International Research Center Initiative (WPI), MEXT, Japan
- National Science Foundation [CMMI-1406462]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1406462, 1406978] Funding Source: National Science Foundation
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The connection between hydrogen-enhanced plasticity and the hydrogen-induced fracture mechanism and pathway is established through examination of the evolved microstructural state immediately beneath fracture surfaces including voids, quasi-cleavage, and intergranular surfaces. This leads to a new understanding of hydrogen embrittlement in which hydrogen-enhanced plasticity processes accelerate the evolution of the microstructure, which establishes not only local high concentrations of hydrogen but also a local stress state. Together, these factors establish the fracture mechanism and pathway.
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