کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456568 | 1514665 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of bainitic isothermal transformation plus Q&P process on the microstructure and mechanical properties of 0.2C bainitic steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of bainitic isothermal transformation plus Q&P process on the microstructure and mechanical properties of 0.2C bainitic steel Effect of bainitic isothermal transformation plus Q&P process on the microstructure and mechanical properties of 0.2C bainitic steel](/preview/png/5456568.png)
چکیده انگلیسی
A novel bainitic isothermal transformation plus quenching and partitioning (B-QP) process was developed for a 0.2C-1.5Si-1.8Mn bainitic steel. The microstructure and mechanical properties of the steel treated by different heat treatment process were investigated. The results show that the B3-QP (the subscript '3' indicates the isothermal holding of 3Â min for the bainitic transformation) samples exhibit a multiphase microstructure containing carbide-free bainite, martensite, film-like retained austenite. The microstructure is much finer than that of the Q&T samples with full martensite and the B30-QP samples with a bainite microstructure. Although the Q&T sample has the highest tensile strength (1455Â MPa), the ductility and the product of strength and elongation (PSE) are lower. In contrast, the B3-QP and B30-QP samples exhibit better ductility and higher PSE values of 26.3Â GPa% and 28.2Â GPa%, respectively. Furthermore, the B3-QP sample exhibits maximum impact toughness value of 121 Jcmâ2, which is about 20% and 55% higher than those of Q&T sample (101Â JÂ cmâ2) and B30-QP sample (78Â JÂ cmâ2) respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 678, 15 December 2016, Pages 339-346
Journal: Materials Science and Engineering: A - Volume 678, 15 December 2016, Pages 339-346
نویسندگان
Yuyin Huang, Qiangguo Li, Xuefei Huang, Weigang Huang,