The effect of aging on hydrogen embrittlement of a nickel alloy
| العنوان: | The effect of aging on hydrogen embrittlement of a nickel alloy |
|---|---|
| المؤلفون: | N.F. Fiore, R. J. Coyle, J.A. Kargol |
| المصدر: | Metallurgical Transactions A. 12:653-658 |
| بيانات النشر: | Springer Science and Business Media LLC, 1981. |
| سنة النشر: | 1981 |
| مصطلحات موضوعية: | Materials science, Structural material, Hydrogen, Metallurgy, Metals and Alloys, chemistry.chemical_element, Condensed Matter Physics, Superalloy, chemistry, Mechanics of Materials, Ultimate tensile strength, Grain boundary, Dislocation, Embrittlement, Hydrogen embrittlement |
| الوصف: | The effect of aging at 500° C on the hydrogen embrittlement tendency of a cold worked Ni-base superalloy was investigated in a series of experiments which included hydrogen charging studies, mechanical tests in hydrogen and in air, and fractographic and slip line investigations. Embrittlement tendency increased (time-to-failure decreased) markedly during the first hour of aging and then remained constant until about 1000 h aging time, whereupon it increased rapidly again. The short-time embrittlement could be accounted for either by a mechanism involving segregation of P to grain boundaries or by one involving planar slip induced by short-range order. The hydrogen charging studies indicated that hydrogen uptake decreases during aging, a result which is not consistent with the P segregation hypothesis. The increase in embrittlement at long aging times is most readily explained in terms of planar slip induced by long range order. Tensile tests over a range of strain rates suggested that accelerated transport of hydrogen by dislocation dragging of hydrogen atmospheres is involved in embrittlement. |
| تدمد: | 2379-0180 0360-2133 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e97e040bf5c7ca804c67dc8b45619503 https://doi.org/10.1007/bf02649740 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........e97e040bf5c7ca804c67dc8b45619503 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 23790180 03602133 |
|---|