کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1600069 1515856 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of beta TiAl alloys elaborated by spark plasma sintering
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Microstructure and mechanical properties of beta TiAl alloys elaborated by spark plasma sintering
چکیده انگلیسی
The microstructure evolution and room temperature mechanical property of beta containing Ti-44Al-3Nb-1Mo-1V-0.2Y alloy consolidated by spark plasma sintering was studied. Pre-alloyed powders were sintered for 2 min in the range 900-1250 °C under 100 MPa. It was found that duplex and lamellar microstructures were obtained depending on the SPS temperature. The duplex microstructure formed at 1150 °C and 1175 °C, and the lamellar structure was achieved above 1200 °C. However, coarsening of lamellar colonies occurred with further increasing of the sintering temperature. The specimen with fine lamellar colonies exhibited a relatively high compressive strength, whereas the one with duplex microstructure showed a superior final strain.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 55, December 2014, Pages 177-183
نویسندگان
, , , , , ,