| 000 | 02654cam a2200337 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223031810.0 | ||
| 008 | 170923s2017 ua dh f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aPh.D | ||
| 099 | _aCai01.13.12.Ph.D.2017.Mo.E | ||
| 100 | 0 | _aMohammed Ahmed Elsaady Ali Awad | |
| 245 | 1 | 0 |
_a Effect of Temperature on microstructure and properties of 2205-Duplex stainless steel weldments / _cMohammed Ahmed Elsaady Ali Awad ; Supervised Iman Elmahallawi , Waleed Khalifa |
| 246 | 1 | 5 | _aتاثير الحرارة على النية المجهرية والخواص للحامات صلب الدوبلكس 2205 |
| 260 |
_aCairo : _bMohammed Ahmed Elsaady Ali Awad , _c2017 |
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| 300 |
_a112 P. : _bcharts , facsimiles ; _c30cm |
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| 502 | _aThesis (Ph.D.) - Cairo University - -Faculty of Engineering - Department of Metallurgical Engineering | ||
| 520 | _aThis study aims at evaluating both pitting corrosion and microstructure of duplex stainless steel (2205) welded by (2209) as a filler before and after exposure to increased service temperatures. In this work selected welded samples were aged at different temperatures (650{u00B0}C, 850{u00B0}C, 950{u00B0}C and 1050{u00B0}C), in order to simulate heat exposure during processing or sevice stages. The results showed that the pitting corrosion rate increased in chloride environments with increasing aging temperature till 850{u00B0}C, afterwards pitting corrosion rate started to decrease and the joints restored their original pitting resistance at 1050{u00B0}C, by the increasing the aging to above 1050{u00BA}C, pitting resistance was found to decrease again. Also, The results showed that the amount of brittle phases increased as the temperature and holding time are increased in the temperature range (475-850{u00B0}C), then they dissolved to form ferrite phase again on increasing the temperatur above 850{u00B0}C. When the temperature reached 1050{u00B0}C all brittle phases completely dissolved and the ferrite to austenite ratio was restored. As the temperature increased to 1150 the ratio Þ/e was decreased due to increase of the ferrite phase. A correlation between different welding processes and aging times were also conducted | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aChi phase | |
| 653 | 4 | _aDuplex stainless steel | |
| 653 | 4 | _aSigma phase | |
| 700 | 0 |
_aIman Elmahallawi , _eSupervisor |
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| 700 | 0 |
_aWaleed Khalifa , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aNazla _eRevisor |
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| 905 |
_aShimaa _eCataloger |
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_2ddc _cTH |
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_c62449 _d62449 |
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