Uneven Precipitation Behavior during the Solutionizing Course of Al-Cu-Mn Alloys and Their Contribution to High Temperature Strength
المؤلفون المشاركون
Chen, Jinlong
Liao, Hengcheng
Xu, Heting
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-07-29
دولة النشر
مصر
عدد الصفحات
12
الملخص EN
The dispersoid precipitation behavior during the solutionizing and aging of Al-xwt.%Cu-1.0 wt.% Mn alloys (x = 2.0, 4.5, and 7.5) and contribution to mechanical properties were investigated using tensile testing and microstructural characterization.
A shell-core structure of primary α-Al dendrites is found in Al-Cu-Mn alloys, in which the Cu content in the shell is higher than that in the core.
The area of shell zone (Cu-rich) increases with an increase in Cu content in the alloy.
Large amounts of fine dispersoid Al-Cu-Mn particles precipitate in solution.
An alloy with low Cu content results in only the TMn (Al20Cu2Mn3) particles being precipitated.
However, in an alloy with high Cu content, AlCu3Mn2 particles are first found to precipitate beside TMn.
However, this precipitation behavior is uneven.
The precipitation zones in the solution microstructure are consistent with the Cu-rich regions in the as-cast microstructure.
A number of fine particles (dozens nanometer in size) are first found to precipitate on the rod-like TMn particles during the aging phase.
The redissolution and granulation of the eutectic CuAl2 phase during the solutionizing process result in the formation of particle-free bands between the precipitation zones.
The tension test at 300°C demonstrates that the increase in high temperature strength is due to the dispersoid precipitation during solutionizing, and the precipitation behavior in the aging phase has little or no effect, however, largely improves the tensile strength at room temperature.
High temperature strength is significantly increased with an increase in Cu content, which correlates to an increase in number and decrease in size of TMn and AlCu3Mn2 particles.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Chen, Jinlong& Liao, Hengcheng& Xu, Heting. 2018. Uneven Precipitation Behavior during the Solutionizing Course of Al-Cu-Mn Alloys and Their Contribution to High Temperature Strength. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1121448
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Chen, Jinlong…[et al.]. Uneven Precipitation Behavior during the Solutionizing Course of Al-Cu-Mn Alloys and Their Contribution to High Temperature Strength. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1121448
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Chen, Jinlong& Liao, Hengcheng& Xu, Heting. Uneven Precipitation Behavior during the Solutionizing Course of Al-Cu-Mn Alloys and Their Contribution to High Temperature Strength. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1121448
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1121448
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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