The effect of retrogression and re-ageing on the ductile fracture toughness of Al-Zn-Mg alloys containing different dispersoid phases
| العنوان: | The effect of retrogression and re-ageing on the ductile fracture toughness of Al-Zn-Mg alloys containing different dispersoid phases |
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| المؤلفون: | John Martin, Agah Uguz |
| المصدر: | Journal of Materials Science. 30:5923-5926 |
| بيانات النشر: | Springer Science and Business Media LLC, 1995. |
| سنة النشر: | 1995 |
| مصطلحات موضوعية: | Toughness, Materials science, Mechanical Engineering, Metallurgy, chemistry.chemical_element, Fractography, Fracture mechanics, Manganese, Intergranular corrosion, Fracture toughness, chemistry, Mechanics of Materials, Phase (matter), General Materials Science, Magnesium alloy |
| الوصف: | The effects of an incoherent and of a semi-coherent dispersoid phase upon the fracture toughness of a 7000-series AlZnMg alloys has been investigated. Standard crack opening displacement tests were successfully applied, the crack propagation being shown to be predominantly intergranular. The presence of manganese bearing incoherent dispersoids lowers the fracture toughness due to their effect of promoting microvoid formation. Retrogression and re-ageing led to a coarsening of the grain-boundary phases, but because the surface-to-surface separation of these particles remained approximately constant, there was no effect of this treatment, at constant yield stress, upon the fracture toughness. The toughness was only enhanced in the system (CZH) where retrogression and re-ageing led to a reduced yield stress. |
| تدمد: | 1573-4803 0022-2461 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4585ac8ba81c348e05b0ca884592f295 https://doi.org/10.1007/bf01151506 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........4585ac8ba81c348e05b0ca884592f295 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15734803 00222461 |
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