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02640nam a22002657a 4500 |
| 001 |
0149770 |
| 041 |
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|a eng
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| 044 |
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|b ليبيا
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| 100 |
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|9 407503
|a ElSahli, Y. A.
|e Author
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| 245 |
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|a The Effect of thermomechanical Regim on Microstructure and Wear Resistance Behavoir of Experimentally Casted Alsimgalloy
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| 260 |
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|b جامعة طرابلس - نقابة أعضاء هيئة التدريس
|c 2015
|g ربيع
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| 300 |
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|a 4 - 19
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| 336 |
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|a بحوث ومقالات
|b Article
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| 520 |
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|b AL-1.5% Si-0.8% Mg alloy has been locally prepared and used to study the feasibility of using low temperature thermo-mechanical treatment (LTMT) for improving the wear resistance. Specimens for this study have been pre¬pared from the homogenized as-cast ingot. The specimens were subjected to solution treatment followed by plastic deformation for 8, 15 and 17 % reduction in thickness before aging at 150, 170 and 190 °C for 4 hours. The microstructure investigation showed an increase in the relative amount of Mg2Si with increasing the degree of deformation. X-ray diffraction analysis revealed a reduction in the lattice parameter of the matrix (Al-based solid solution) of the investigated alloy with increasing the percentage reduction in thickness. Hardness measurements showed that with increasing the percent¬age of cold work of Al-Si-Mg alloy with excess Si leads to a decrease in the maximum attainable hardness of artificially aged articles. For naturally aged articles, the contrary was true. Wear measurements of the investigated alloy under a load of 3.9 N for 500 m counter a cast iron disc revealed that the wear rate depends mainly on the hardness values of the articles. The investigation revealed that low temperature thermo-mechanical treatment of the studied alloy is not practically feasible for wear application. On the other hand, con¬ventional heat treatment is more feasible.
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| 653 |
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|a الهندسة الميكانيكية
|a الإنتاج الميكانيكي
|a الانظمة الحرارية
|a الطاقة الحرارية
|a مستخلصات الأبحاث
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| 692 |
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|b Thermo-Mechanical Treatment
|b Cold Work
|b X-ray-Diffrac-Tion
|b Hardness Measurement
|b Wear Measurements
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| 700 |
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|9 407507
|a Hameda, A. A.
|e Co-Author
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| 700 |
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|9 407506
|a Elhakimi, A. A. S.
|e Co-Author
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| 700 |
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|9 572824
|a Elosta, H.
|e Co-Author
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| 700 |
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|9 572826
|a Aboglaila, Z.
|e Co-Author
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| 773 |
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|4 التربية والتعليم
|6 Education & Educational Research
|c 010
|e Al-OstaTh
|l 008
|m ع8
|o 1594
|s مجلة الأستاذ
|v 000
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| 856 |
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|u 1594-000-008-010.pdf
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| 930 |
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|d y
|p y
|q n
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| 995 |
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|a EduSearch
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| 999 |
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|c 770419
|d 770419
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