کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1865337 1037818 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dissociation of super-dislocations and the stacking fault energy in TiAl based alloys with Nb-doping
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Dissociation of super-dislocations and the stacking fault energy in TiAl based alloys with Nb-doping
چکیده انگلیسی

Dissociations of super-dislocations in γ-TiAl in Nb-doped Ti-48 at.% Al-1 at.% Nb and Ti-48 at.% Al-10 at.% Nb have been studied by high resolution transmission electron microscopy (HRTEM) and weak beam transmission electron microscopy (TEM). The SISF energy was calculated to be 63 mJ/m2 in Ti-48 at.% Al-1 at.% Nb and 34 mJ/m2 in Ti-48 at.% Al-10 at.% Nb according to the dissociation width, respectively. Consequently, it is concluded that Nb-addition can decrease the SF energy significantly, which contribute obviously to the strengthening effect induced by Nb-doping.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 358, Issue 3, 16 October 2006, Pages 231–235
نویسندگان
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