کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8021916 1517279 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of carbon content on the recrystallization of a single crystal nickel-based superalloy
ترجمه فارسی عنوان
تأثیر محتوای کربن بر روی فرآوری مجدد سوپرآلیاژ بر پایه نیکل تک کریستالی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Carbon has recently been reintroduced to single crystal (SX) superalloys because of its beneficial effects, such as reducing the occurrence of casting defects and enhancing the tolerance of low angle grain boundaries. Meanwhile, the addition of carbon leads to changes in the carbide morphology and volume fraction and may subsequently affect the recrystallization (RX) behavior. The purpose of this paper was to identify the effect of the carbon content on RX in an SX nickel-based superalloy. The SX specimens were prepared with an identical crystal orientation but different carbon contents. It was found that with the increase of the carbon content from 0.012 wt% to 0.17 wt%, the volume fraction of carbides increased linearly, while the average size of the carbides was nearly unchanged. After shot peening and heat treatment, a layer of RX grains was generated on the surface. As the carbon content was increased, the RX depth increased at first and later decreased. These changes were interpreted as the combined effect of the carbides on the stored energy during deformation and the pinning force during RX grain growth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 109, 15 October 2013, Pages 154-157
نویسندگان
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