کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7975652 1514689 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An investigation into the warm deformation behavior of Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
An investigation into the warm deformation behavior of Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si alloy
چکیده انگلیسی
The microstructural evolution and the flow behavior of Ti-6Al-1.5Cr-2.5Mo-0.5Fe-0.3Si alloy were investigated in this research. The flow behavior of the alloy at temperatures in the range of 100-600 °C was studied using warm compression testing under the strain rate of 0.001-0.1 s−1. The results indicate that the formability of the alloy is significantly increased at temperatures higher than 400 °C due to the activation of pyramidal slip systems. Moreover, optical observations confirm the occurrence of flow localization and adiabatic shear banding within the microstructure due to the adiabatic heating phenomenon at lower temperatures. The adiabatic heating is also led the experimental material to exhibit a negative strain rate sensitivity behavior. The tensile deformation behavior of this alloy was also studied at temperatures in the range of 100-400 °C through warm tension testing. The results show that the alpha phase grains are elongated along the tensile direction at lower temperatures but would be globularized at higher temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 654, 27 January 2016, Pages 264-270
نویسندگان
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