HRTEM and HAADF-STEM of precipitates at peak ageing of cast A319 aluminium alloy
High-resolution transmission electron microscopy (HRTEM) and high-angle annular-dark-field scanning transmission electron microscopy (HAADF-STEM) were applied to investigate the precipitates formed during age hardening at 170 ± 5 °C for up to 48. h of cast A319 aluminium alloy (Al-4.93. wt%Si-3.47....
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84872501027&partnerID=40&md5=7a64acc0aeb05a35c11a06a76ec9c4b9 http://cmuir.cmu.ac.th/handle/6653943832/6947 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | High-resolution transmission electron microscopy (HRTEM) and high-angle annular-dark-field scanning transmission electron microscopy (HAADF-STEM) were applied to investigate the precipitates formed during age hardening at 170 ± 5 °C for up to 48. h of cast A319 aluminium alloy (Al-4.93. wt%Si-3.47. wt%Cu). The precipitates at the peak-aged condition have been identified as mainly θ" together with a smaller amount of θ'. It is proposed that the θ" is responsible for hardening at peak ageing at 170 °C of the cast A319 aluminium alloy. © 2012 Elsevier Ltd. |
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