Appearance of submicroscopic cracks in armco iron under static tension during hydrogen charging
A study was carried out of armco iron subjected simultaneously to static tension and hydrogen charging. Electron microscope examination of specimens strained in air showed that the first submicroscopic cracks appear at 5–8% residual elongation. In the case of specimens strained during hydrogen charging the cracks appear in the earlier stages (at 1.0–1.5% residual elongation).
KeywordsHydrogen Iron Electron Microscope Microscope Examination Electron Microscope Examination
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