تأثير المعالجة الحرارية بالتعتيق في مقاومة التآكل الكيميائي النقري للفولاذ المارتنسيتي المقاوم للصدأ
Other Title(s)
Effect of aging heat treatment on pitting corrosion resistance of martensitic stainless steel
Author
Source
مجلة جامعة دمشق للعلوم الهندسية
Issue
Vol. 31, Issue 1 (30 Jun. 2015), pp.95-113, 19 p.
Publisher
Publication Date
2015-06-30
Country of Publication
Syria
No. of Pages
19
Main Subjects
Electronic engineering
Mechanical Engineering
Abstract EN
The aim of this work is to study the effect of the aging heat treatment on the pitting corrosion resistance of martensitic stainless steel.
In this research a number of specimens from martensitic stainless steel were subjected to solution treatment at 1050 0 C for one hour followed by water quenching then aging in the temperatures range (400-750) 0 C for different holding times (1-16 hrs).
After heat treatment, two types of corrosion tests (accelerated test and immersion test) were conducted.
The results obtained in this research showed that the pitting corrosion resistance was affected by Aging temperature and three critical temperatures were found in corrosion test: the specimens aged at 475 0 C had maximum corrosion rate.
This may be due to the presence of stringer δferrite and precipitation of very fine precipitates which precipitated heterogeneously in the martensitic matrix, which led to an increase in corrosion rate.
The specimens aged at temperatures range (550 – 625) 0 C had minimum values of corrosion rate, this is attributed to the high volume fraction of retained austenite.
The specimens aged at temperatures above 625 0 C had intermediate corrosion rate.
The type of pits, which resulted from two pitting corrosion tests, was independent form the form of δferrite and carbides which presence in microstructure
American Psychological Association (APA)
محمد مازن يعقوب. 2015. تأثير المعالجة الحرارية بالتعتيق في مقاومة التآكل الكيميائي النقري للفولاذ المارتنسيتي المقاوم للصدأ. مجلة جامعة دمشق للعلوم الهندسية،مج. 31، ع. 1، ص ص. 95-113.
https://search.emarefa.net/detail/BIM-844313
Modern Language Association (MLA)
محمد مازن يعقوب. تأثير المعالجة الحرارية بالتعتيق في مقاومة التآكل الكيميائي النقري للفولاذ المارتنسيتي المقاوم للصدأ. مجلة جامعة دمشق للعلوم الهندسية مج. 31، ع. 1 (2015)، ص ص. 95-113.
https://search.emarefa.net/detail/BIM-844313
American Medical Association (AMA)
محمد مازن يعقوب. تأثير المعالجة الحرارية بالتعتيق في مقاومة التآكل الكيميائي النقري للفولاذ المارتنسيتي المقاوم للصدأ. مجلة جامعة دمشق للعلوم الهندسية. 2015. مج. 31، ع. 1، ص ص. 95-113.
https://search.emarefa.net/detail/BIM-844313
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 112
Record ID
BIM-844313