| 1. | Not doing so can lead to equipment failure from hydrogen embrittlement.
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| 2. | Hydrogen, because of its embrittlement in some metals and steels .)
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| 3. | Over the years several theories have been proposed to explain hydrogen embrittlement.
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| 4. | The process is hydrogen free, therefore a hydrogen embrittlement is excluded.
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| 5. | Note that there still is some embrittlement of the workpiece.
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| 6. | Deuterium and tritium also cause hydrogen embrittlement in many materials.
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| 7. | Exposition of uranium metal to hydrogen leads to hydrogen embrittlement.
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| 8. | The embrittlement can often be avoided by quickly cooling the metal after tempering.
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| 9. | Two-step embrittlement, however, is reversible.
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| 10. | However, they create welds with high hydrogen content, encouraging embrittlement and cracking.
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