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Effect of Rare Earth Metals, Sr, and Ti Addition on the Microstructural Characterization of A413.1 Alloy
المؤلفون المشاركون
Samuel, F. H.
Doty, Herbert W.
Samuel, A. M.
Valtierra, S.
Mahmoud, M. G.
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-05-16
دولة النشر
مصر
عدد الصفحات
12
الملخص EN
The present work was performed on A413.1 alloy containing 0.2–1.5 wt% rare earth metals (lanthanum or cerium), 0.05–0.15% Ti, and 0–0.02 wt% Sr.
These elements were either added individually or combined.
Thermal analysis, image analysis, and electron probe microanalysis were the main techniques employed in the present study.
The results show that the use of the depression in the eutectic temperature as a function of alloy modification cannot be applied in the case when the alloy is treated with rare earth metals.
Increasing the concentration of RE increases the solidification zone especially in Sr-modified alloys leading to poor feeding ability.
This observation is more prominent in the case of Ce addition.
Depending upon the amount of added Ti, two RE based intermetallics can be formed: (i) a white phase, mainly platelet-like (approximately 2.5 μm thick), that is rich in RE, Si, Cu, and Al and (ii) a second phase made up of mainly grey sludge particles (star-like) branching in different directions.
The grey phase is rich in Ti with some RE (almost 20% of that in the white phase) with traces of Si and Cu.
There is a strong interaction between RE and Sr leading to a reduction in the efficiency of Sr as a eutectic Si modifier causing particle demodification.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahmoud, M. G.& Samuel, A. M.& Doty, Herbert W.& Valtierra, S.& Samuel, F. H.. 2017. Effect of Rare Earth Metals, Sr, and Ti Addition on the Microstructural Characterization of A413.1 Alloy. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1124080
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahmoud, M. G.…[et al.]. Effect of Rare Earth Metals, Sr, and Ti Addition on the Microstructural Characterization of A413.1 Alloy. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1124080
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahmoud, M. G.& Samuel, A. M.& Doty, Herbert W.& Valtierra, S.& Samuel, F. H.. Effect of Rare Earth Metals, Sr, and Ti Addition on the Microstructural Characterization of A413.1 Alloy. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1124080
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1124080
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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