کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7952127 | 1513709 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Precipitation and hot deformation behavior of austenitic heat-resistant steels: A review
ترجمه فارسی عنوان
رفتار ناپایداری و تغییر شکل گرم فولادهای مقاوم در برابر آستنیتی: بررسی
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کلمات کلیدی
فولاد آستنیتی، رفتار خشن، تغییر شکل داغ، ریز ساختار،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
چکیده انگلیسی
The austenitic heat resistant-steels have been considered as important candidate materials for advanced supercritical boilers, nuclear reactors, super heaters and chemical reactors, due to their favorable combination of high strength, corrosion resistance, perfect mechanical properties, workability and low cost. Since the precipitation behavior of the steels during long-term service at elevated temperature would lead to the deterioration of mechanical properties, it is essential to clarify the evolution of secondary phases in the microstructure of the steels. Here, a summary of recent progress in the precipitation behavior and the coarsening mechanism of various precipitates during aging in austenitic steels is made. Various secondary phases are formed under service conditions, like MX carbonitrides, M23C6 carbides, Z phase, sigma phase and Laves phase. It is found that the coarsening rate of M23C6 carbides is much higher than that of MX carbonitrides. In order to understand the thermal deformation mechanism, a constitutive equation can be established, and thus obtained processing maps are beneficial to optimizing thermal processing parameters, leading to improved thermal processing properties of steels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 33, Issue 12, December 2017, Pages 1448-1456
Journal: Journal of Materials Science & Technology - Volume 33, Issue 12, December 2017, Pages 1448-1456
نویسندگان
Yinghui Zhou, Yongchang Liu, Xiaosheng Zhou, Chenxi Liu, Jianxin Yu, Yuan Huang, Huijun Li, Wenya Li,