کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1610374 | 1516275 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Work-hardening behaviors of typical solution-treated and aged Ni-based superalloys during hot deformation
ترجمه فارسی عنوان
رفتارهای سخت کاری کارآیی ابررساناهای معمول بر پایه محلول و بر پایه نیکل در طول تغییر شکل گرم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
A detailed analysis of work-hardening behavior is useful to optimize the hot forming processing of metals or alloys. The hot compression tests of solution-treated and aged Ni-based superalloys are carried out over wide ranges of temperature and strain rate. Based on the experimental data, the effects of strain rate, deformation temperature, strain and δ phase (Ni3Nb) on the work-hardening behaviors are discussed in detail. The microstructures of the studied superalloy are observed to correlate with the complex dynamic deformation mechanisms. The experimental results show that the work-hardening behaviors of the studied superalloy are significantly affected by deformation temperature, strain rate, strain and δ phase. The work-hardening rate increases with the decrease of deformation temperature or the increase of strain rate. When the deformation degree is relatively small, δ phase can inhibit the dislocation movement and enhance the work-hardening behavior. However, with further straining, δ phase stimulates the occurrence of dynamic recrystallization and promotes the dynamic softening. When the deformation temperature is higher than the dissolution temperature of δ phase, the effects of δ phase on work-hardening behaviors are weakened.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 618, 5 January 2015, Pages 372-379
Journal: Journal of Alloys and Compounds - Volume 618, 5 January 2015, Pages 372-379
نویسندگان
Dong-Xu Wen, Y.C. Lin, Jian Chen, Xiao-Min Chen, Jin-Long Zhang, Ying-Jie Liang, Lei-Ting Li,