کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7969157 | 1514347 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Intermediate temperature brittleness of Ni based superalloy Nimonic263
ترجمه فارسی عنوان
رطوبت دما در دمای نیمه نیکل نیکونیک 263
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
Ni based superalloy Nimonic263 offers excellent resistance to corrosion and high temperatures, and as such can be used under an A-USC environment, which has extremely high temperatures and high pressure. To investigate the intermediate temperature brittleness that is the temperature dependence of this alloy, the tensile test was carried out at a constant cross head speed of 1â¯mm/min in the temperature range of room temperature to 900â¯Â°C. As the temperature increased during the test, the constant yield strength decreased sharply at 800â¯Â°C while the ductility began to decrease from 500â¯Â°C and then recovered after showing a minimum value at 800â¯Â°C. The results of the OM, SEM and TEM observations indicate that the deformation mechanism changed from γⲠshearing to by-pass as the temperature increased, and the minimum ductility resulted from decohesion of the glide plane.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 140, June 2018, Pages 9-14
Journal: Materials Characterization - Volume 140, June 2018, Pages 9-14
نویسندگان
Hee-Jeong Chung, Joo-Youl Huh, Woo-Sang Jung,