کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8021500 | 1517276 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved high temperature γⲠstability of Co-Al-W-base alloys containing Ti and Ta
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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
The γⲠsolvus temperature is essential for high temperature microstructural stability and strengthening of the newly developed Co-Al-W-base alloys, but few were above 1100 °C since their discovery. In the current study, two experimental alloys containing both Ti and Ta were reported to have high γⲠsolvus temperatures of 1131 and 1157 °C, respectively. Typical γ/γⲠtwo-phase microstructure with high volume fraction of γⲠprecipitates presented after aging at high temperature above 1100 °C in two experimental alloys. Furthermore, the γ/γⲠmicrostructure still remained with a γⲠvolume fraction about 63% and no formation of secondary phase at 1050 °C for 1000 h. This work indicates the promising microstructural stability to further develop this class of Co-base alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 112, 1 December 2013, Pages 215-218
Journal: Materials Letters - Volume 112, 1 December 2013, Pages 215-218
نویسندگان
F. Xue, H.J. Zhou, X.F. Ding, M.L. Wang, Q. Feng,