Microstructural Features and Mechanical Properties of Artificially Aged AA2024
Microstructural features and mechanical properties of Al–Cu–Mg alloy (AA2024) were examined after aging the alloy between 105–195°C for various durations. One set of the specimens was aged at 105, 135, 165, and 195°C for 2 h, whereas the aging of other set of specimens at these temperatures wa...
Збережено в:
| Дата: | 2013 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2013
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| Назва видання: | Проблемы прочности |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/112674 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Naveed Afzal Microstructural Features and Mechanical Properties of Artificially Aged AA2024 / Afzal Naveed, Shah Tariq, R. Ahmad // Проблемы прочности. — 2013. — № 6. — С. 69-81. — Бібліогр.: 31 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Microstructural features and mechanical properties
of Al–Cu–Mg alloy (AA2024) were examined
after aging the alloy between 105–195°C
for various durations. One set of the specimens
was aged at 105, 135, 165, and 195°C for 2 h,
whereas the aging of other set of specimens at
these temperatures was performed for 3.5, 3,
2.5, and 2 h, respectively. X-ray diffraction and
scanning electron microscopy results indicated
the formation of S- (Al₂CuMg) and - (Al₂Cu)
phase precipitates whose density and size
changed with aging time and the temperatures.
Anomalous variations in yield strength, ultimate
tensile strength, plastic elongation, elastic
modulus and hardness were observed with either
changing the aging temperature, or the
time. However, the specimens aged at 135 and
195°C for 2 h displayed the maximum strength
and hardness along with a slight decrease in
their plasticity as compared to those aged at
other temperatures with various durations. |
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