کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7976339 | 1514693 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High temperature low cycle fatigue properties of alloy 625
ترجمه فارسی عنوان
خواص خستگی پایین چرخه کم آلیاژ 625
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
The impact of a thermal overaging at 650 °C on Alloy 625 high temperature low cycle fatigue (LCF) and tensile properties was investigated. This prior thermal aging in the γ“ precipitation domain improve both the tensile properties in the 20-750 °C temperature range (Tensile resistance and Yield stress) and the LCF lifetime at 650 °C. The improvements in monotonic and LCF properties compared to the samples without any prior aging are provided by the γ” structural hardening which limits the cyclic ratcheting during LCF tests. In addition, using a combination of strain-controlled LCF experiments, interrupted stress-controlled LCF experiments followed by a tensile tests and microstructure inspections, it is shown that the microstructure of Alloy 625 without any prior aging is unstable during LCF solicitation and that the γⳠprecipitation as well as the γâ³âδ transformation are occurring during mechanical cycling, affecting the mechanical behavior of the alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 650, 5 January 2016, Pages 161-170
Journal: Materials Science and Engineering: A - Volume 650, 5 January 2016, Pages 161-170
نویسندگان
Lorena Mataveli Suave, Jonathan Cormier, Denis Bertheau, Patrick Villechaise, Aurélie Soula, Zéline Hervier, Florence Hamon,