Investigation the creep-fatigue behavior and A.C. electrical conductivity of AA 6061 under ultrasonic peening
المؤلفون المشاركون
Abbas, Mahmud F.
Raja, Ahmad Hasan
al-Alkawi, Husayn Jasim Muhammad
المصدر
Engineering and Technology Journal
العدد
المجلد 37، العدد 11A (30 نوفمبر/تشرين الثاني 2019)، ص ص. 453-459، 7ص.
الناشر
تاريخ النشر
2019-11-30
دولة النشر
العراق
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
ltrasonic peening is an innovative surface improvement process used to increase the resistance of aircraft metals and enhance high cycle fatigue life.
The process creates residual compressive stresses deep into part surfaces.
These compressive surface stresses inhibit the initiation and propagation of fatigue cracks.
Aluminum alloys are relatively new materials used in aerospace, marine, automobile, and bridges due to low weight, which has significant advantages compared to the other materials.
A major concern in the design of Aluminum alloys subjected to variable loads is fatigue strength and life.
In this paper mechanical properties, fatigue strength, fatigue life and A.C..
electrical conductivity were studied for AA6061-T6 to assess the effects of ultrasonic peening (UP) on mechanical properties, fatigue at room temperature (RT), creep-fatigue (CF) at 250 ͦ C and A.C..
electrical conductivity.
Test results showed that after UP, the mechanical properties; ultimate tensile strength (UTS) and yield stress (Ys) were noticeably improved.
The improvements in UTS and Ys were enhanced by 5.7% and 1.5% respectively while the ductility was reduced from 16.5% to 15.7%.
Fatigue strength was enhanced by 8.37% compared to strength at RT.
The results of UT before creep-fatigue CF showed increasing in fatigue strength 147 MPa at CF 250 ̊ C and improved to153 MPa after applying UP, indicating 4% improvement in strength.
The fatigue life was improved after UP for both RT and CF.
It was found that the A.C.
electrical conductivity increase as the frequency increase for all the cases above.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Alkawi, Husayn Jasim Muhammad& Raja, Ahmad Hasan& Abbas, Mahmud F.. 2019. Investigation the creep-fatigue behavior and A.C. electrical conductivity of AA 6061 under ultrasonic peening. Engineering and Technology Journal،Vol. 37, no. 11A, pp.453-459.
https://search.emarefa.net/detail/BIM-947608
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Alkawi, Husayn Jasim Muhammad…[et al.]. Investigation the creep-fatigue behavior and A.C. electrical conductivity of AA 6061 under ultrasonic peening. Engineering and Technology Journal Vol. 37, no. 11A (2019), pp.453-459.
https://search.emarefa.net/detail/BIM-947608
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Alkawi, Husayn Jasim Muhammad& Raja, Ahmad Hasan& Abbas, Mahmud F.. Investigation the creep-fatigue behavior and A.C. electrical conductivity of AA 6061 under ultrasonic peening. Engineering and Technology Journal. 2019. Vol. 37, no. 11A, pp.453-459.
https://search.emarefa.net/detail/BIM-947608
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 495
رقم السجل
BIM-947608
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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