Search In this Thesis
   Search In this Thesis  
العنوان
A study of physical properties of rapidly solidified Al-Pb alloys from the melt /
المؤلف
Fouda, Samira EL-Mohamady Abd EL-Baky.
هيئة الاعداد
باحث / سميرة المحمدى عبدالباقى فودة
مشرف / مصطفى كمال محمد يوسف
مشرف / أبو بكر عبدالفتاح البديوى
مشرف / مصطفى كمال محمد يوسف
مشرف / أبو بكر عبدالفتاح البديوى
الموضوع
Metals - Rapid solidification processing. Materials - Rapid solidification processing.
تاريخ النشر
2014.
عدد الصفحات
97 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الفيزياء وعلم الفلك
تاريخ الإجازة
01/01/2014
مكان الإجازة
جامعة المنصورة - كلية العلوم - Department of Physics
الفهرس
Only 14 pages are availabe for public view

from 140

from 140

Abstract

The objective of this work was topresents experimental results and theoretical considerations to evaluate the effect of Lead and Tin additions on the solidification behavior of Al-Pb monotectic alloys used as self-lubricating bearings and as bush materials.
To verify this aim we do the following:-
Melt spinning technique was used to prepare ribbons. Therefore alloys were divided into two groups:
The first group: monotectic alloy compositions Al-0.9 wt % Pb - Al-1.2wt % Pb - Al-5 wt % Pb - Al- 10wt % Pb- Al-20wt % Pb- Al-30wt % Pb - Al-50wt % Pb.
The second group: To evaluate the effect of Tin,two alloys compositions were made (Al- 10 wt % Pb- Al-20 wt % Pb).
Experimental techniques and devices used in this these study are ( x-ray diffraction, double bridge method, Dynamic resonance method and Vickers micro-hardness tester) to study Structural modifications, electrical, thermal and mechanical properties improvements on chill-block melt spinning of melt-quenched ribbons of the Al-Pb monotectic containing Tin are described and discussed.
from our work it’s concluded that:-
We can concluded that Al-10 wt % Pb and Al-10 wt % Pb-10 wt % Sn melt spun alloy has best physical properties , such as high values of conductivity , hardness , elastic modulus and internal friction.
Key words: Melt-spin technique, X-ray diffraction, Lattice distortions, Resistivity, Elastic moduli, specific heat, and internal friction.