4. Conclusion
In order to optimize the hydrogen embrittlement desensitization process, we need to improve our understanding of the problems associated with hydrogenation of hardened, electrolytically-coated products under stress during use. From the results presented and their discussion, it is worth noting that :
In a manufacturing range, hydrogenating operations include heat treatments (when carried out in a carburizing atmosphere), certain chemical pickling operations and electrolytic or chemical surface treatments;
hydrogen introduced during electrolytic or chemical surface treatment is mainly found in the coating (hydrogen partition concept);
it's the stressing of hardened, hydrogenated steel that embrittles the product. This embrittlement results in the loss of the product's plasticity....
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Bibliography
- (1) - MARTIN (F.), FEAUGAS (X.), OUDRISS (A.), TANGUY (D.), BRIOTTET (L.), KITTEL (J.) - State of Hydrogen in Matter : Fundamental Ad/Absorption, Trapping and Transport Mechanisms. - In : C. Blanc, I. Aubert (Eds.), Mechanics – Microstructure – Corrosion Coupling, Elsevier, 8, p. 171-197 (2019). ...
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