تأثير المعالجة الحرارية في سلوك اهتراء الخليطة ZA-27
Other Title(s)
Effect of heat treatment on wear behavior of ZA-27 alloy
Joint Authors
Source
مجلة جامعة دمشق للعلوم الهندسية
Issue
Vol. 31, Issue 1 (30 Jun. 2015), pp.83-95, 13 p.
Publisher
Publication Date
2015-06-30
Country of Publication
Syria
No. of Pages
13
Main Subjects
Physics
Electronic engineering
Mechanical Engineering
Abstract EN
A new group of Z n - Al alloys suitable for casting was developed in the late sixties, These alloys are ZA - 8 , ZA - 12 and ZA – 27, where the numbers represent the approximate percentage of aluminum in the alloy.
These alloys compete with cast iron and copper alloys and aluminum alloys.
ZA – 27 alloy is characterized by the biggest strength and lowest density alloy from the rest of ZA alloys.
It has good physical and mechanical properties (good strength, good cast ability, ease of machining, good wear properties and high corrosion resistance).
This research is aimed to study the effect of heat treatment on mechanical properties as well as to improve the wear properties of ZA-27alloy.
Heat treatment of type T4 was applied on ZA-27 alloy (This treatment was done by heating the alloy to a temperature equal to 370 o C for a period of 3 or 5 hours and then immersion in water followed by natural aging for 30 days).
Wear testing has been made by using dry sliding test of pin samples on the disk - ZA – 27 alloy after casting without any treatment and wear tests were performed on heat treated ZA – 27 alloy samples.
The microstructure of the alloy after casting and after heat treatment was examined and the effect of the microstructure on the wear behavior was studied.
The hardness and tensile strength of heat treated samples were reduced while elongation was increased compared with alloy after casting.
The rate of decrease of hardness was equal to 34.7 %, which is consistent with solutionizing period.
On the contrary, the increase in the solutionizing period decreases strength and increases elongation.
The study shows also that the heat treated samples have achieved a significant improvement on wear properties compared to the samples after casting without heat treatment
American Psychological Association (APA)
محمد مازن يعقوب والداود، مهلب. 2015. تأثير المعالجة الحرارية في سلوك اهتراء الخليطة ZA-27. مجلة جامعة دمشق للعلوم الهندسية،مج. 31، ع. 1، ص ص. 83-95.
https://search.emarefa.net/detail/BIM-844312
Modern Language Association (MLA)
محمد مازن يعقوب والداود، مهلب. تأثير المعالجة الحرارية في سلوك اهتراء الخليطة ZA-27. مجلة جامعة دمشق للعلوم الهندسية مج. 31، ع. 1 (2015)، ص ص. 83-95.
https://search.emarefa.net/detail/BIM-844312
American Medical Association (AMA)
محمد مازن يعقوب والداود، مهلب. تأثير المعالجة الحرارية في سلوك اهتراء الخليطة ZA-27. مجلة جامعة دمشق للعلوم الهندسية. 2015. مج. 31، ع. 1، ص ص. 83-95.
https://search.emarefa.net/detail/BIM-844312
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 94
Record ID
BIM-844312