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Direct observation of hydrogen-t rapping sites in newly developed high-strength mooring chain steel by atom probe tomography |
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| Authors: | Xiaoying Cheng Zhijuan Zhang Wenqing Liu and Xiaojiao Wang |
| Institution: | Xiaoying Cheng;Zhijuan Zhang;Wenqing Liu;Xiaojiao Wang;Laboratory for Microstructures,Shanghai University;Institute of Materials,Shanghai University; |
| Abstract: | Hydrogen-trapping sites were directly observed by using a three-dimensional atom probe (3DAP) in high-strength mooring chain steel. Three typical 3DAP datasets show that trapping hydrogen is mainly enriched in retained austenite, and secondarily in carbides. In addition, these interfaces between ferrite and carbide are segregated by phosphorus, but do not admit hydrogen. |
| Keywords: | Steel Hydrogen-trapping sites Atom probe tomography High-strength Retained austenite Interfaces |
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