کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10142340 | 1646096 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure evolution of electron beam welded joints of Ti-43Al-9V-0.3Y and Ti-6Al-4V alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ti-43Al-9V-0.3Y (at%) and Ti-6Al-4V (at%) alloys were successfully welded by electron beam to investigate the microstructure evolution of the joints. The results showed that the microstructure of the weld is comprised of α2-Ti3Al, γ-TiAl, together with a few residual α-TiAl solid solution and B2 phase (ordering by β-TiAl solid solution). The casting structure is formed during the solidification process of the weld, which inevitably causes component segregation in some parts of the joint. In high Al content regions, Al element drives α phase ordering into α2 phase, and eventually introduces the formation of α/γ or α2/γ lamellar structures. Conversely, in some regions with low Al content, α phases hardly experience microstructure evolution and thus remains to room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 233, 15 December 2018, Pages 336-339
Journal: Materials Letters - Volume 233, 15 December 2018, Pages 336-339
نویسندگان
Guoqing Chen, Ge Zhang, Qianxing Yin, Binggang Zhang, Jicai Feng,