کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1600972 | 1005182 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The dependence of phase selection in peritectic solidification of Bi-Te40 on cooling rates and liquid states
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
During peritectic reactions of the alloy Bi-Te40 (wt%), the phase selection was studied from the viewpoint of heat treatment. The results unambiguously show that the alloy solidification manner is dissimilar to that demonstrated in present Bi-Te phase diagrams. At the cooling rate from 0.69 °C/Sec to 104°C/Sec or during the isothermal process, Bi4Te5 is confirmed to develop at the first peritectic reaction L + Bi2Te3 â Bi4Te5. The second peritectic reaction L + Bi4Te5 â BiTe may occur only when the cooling rate is slow enough, about 100 °C/s. The peritectic reactions both proceed more incompletely with increasing cooling rate. However, the intermetallic phase Bi6Te7 could not be checked under all the conditions. More significantly, after experiencing liquid-liquid structural change, there will be a large quantity of peritectic phases with refined microstructures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 18, Issue 5, May 2010, Pages 749-755
Journal: Intermetallics - Volume 18, Issue 5, May 2010, Pages 749-755
نویسندگان
Zhongyue Huang, Fangqiu Zu, Jie Chen, Guohua Ding,