000 02554cam a2200349 a 4500
003 EG-GiCUC
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008 180827s2018 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.12.M.Sc.2018.Mo.E
100 0 _aMona Fadl Abouelwafa Fadl
245 1 0 _aEffect of soaking treatment on the microstructure and wear behavior of the ultrasonic treated B-390 aluminum alloy /
_cMona Fadl Abouelwafa Fadl ; Supervised Waleed Mohammed Khalifa , Mohamed Raafat Elkoussy , Shimaa Hassan Elhadad
246 1 5 _aالمعالجة بالاهتزازات فوق الصوتية B390 تأثير معالجات التشريب على بنية و خصائص البرى لسبيكة الألومنيوم
260 _aCairo :
_bMona Fadl Abouelwafa Fadl ,
_c2018
300 _a73 P. :
_bcharts , facsimiles ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metallurgical Engineering
520 _aHypereutectic alloys such as B390 alloy exhibit very specific and interesting properties, such as high wear resistance, high strength and hardness, and low thermal expansion coefficients. As a result, they are used in heavy wear applications, often at elevated or medium temperatures, such as in pistons, cylinder blocks and AC compressors. However, their use has always been handicapped by several difficulties: in particular, their high latent heat and consequent long solidification time resulting in die wear, difficulty in avoiding segregation of massive primary silicon particles, and generally their unfavorable shrinkage behavior. In this study SSM and ultrasonic treatment should overcome most of these difficulties. In the first, the ultrasonic treatment most of the silicon plates were disconnected and broken, forming spheroidized crystals. In the second, to study the thixotropic behavior ultrasonically treated and non-treated specimens were used under semi-solid conditions. Semi-solid materials (SSM) are now becoming increasingly popular for the manufacturing of automotive parts
530 _aIssued also as CD
653 4 _aHypereutectic Al-Si
653 4 _aSoaking
653 4 _aWear
700 0 _aMohamed Raafat Elkoussy ,
_eSupervisor
700 0 _aShimaa Hassan Elhadad ,
_eSupervisor
700 0 _aWaleed Mohammed Khalifa ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aEnas
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c67159
_d67159