کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7981416 1514746 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of germanium and silicon additions on the mechanical properties of a near-α titanium alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effect of germanium and silicon additions on the mechanical properties of a near-α titanium alloy
چکیده انگلیسی
The effect of Germanium (Ge) addition and simultaneous addition of Ge and Silicon (Si) on the tensile properties, impact toughness, and fracture behavior of the near-α alloy Ti-5Al-2Sn-4Zr-2Mo has been investigated at room temperature and at 650 °C. Addition of Ge monotonically increases the 0.2% yield stress (YS) and ultimate tensile stress (UTS) at both temperatures, and increases the rupture elongation at 650 °C; however, the Charpy impact toughness at both temperatures decreased. At 650 °C, this alloy ruptured in a hybrid manner, showing cracking at the germanide precipitates and plastic deformation in the surrounding matrix forming equiaxed dimples. The effect of simultaneous addition of 1 wt% Ge and 0.1 wt% Si on the mechanical properties is also discussed in relation to the effect of precipitate volume fraction and solid solution strengthening.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 597, 12 March 2014, Pages 212-218
نویسندگان
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