کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7971559 | 1514609 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aging characteristics and properties of Fe-16Cr-2.5Mo-1.0Cu damping alloy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The precipitating behavior of Cu-riched particles during isothermally aging and its effect on hardness and damping capacity of Fe-16Cr-2.5Mo-1.0Cu damping alloy have been investigated by atom probe tomography (APT) and scanning transmission electron microscopy (STEM). The results show that aging at temperature range from 400â¯Â°C to 700â¯Â°C has minor influence on grain size. During aging at temperature below 400â¯Â°C, the supersaturated Cu dose not precipitate out. While aging temperature is 450â¯Â°C, a relatively small number of Cu-riched particles can be observed and the particle radius is small (1.5â¯Â±â¯0.56â¯nm). With a further increasing aging temperature, the Cu-riched particles increase to 3.21â¯Â±â¯0.52â¯nm at 550â¯Â°C and further grow to 12.88â¯Â±â¯2.02â¯nm at 700â¯Â°C. As compared with 450â¯Â°C, the particle number increases significantly at 550â¯Â°C, and then decreases at 700â¯Â°C. Due to the stable grain size and no precipitate, the hardness keeps constant below 400â¯Â°C. With a further increasing aging temperature, the hardness increases gradually and reaches peak value aging at 600â¯Â°C due to the increase of Cu-riched particle number. The damping capacity significantly depends on particle. Once there appear Cu-riched particles, the damping capacity decreases obviously. During aging, both hardness and damping capacity of the alloy can keep stable when temperature is below 400â¯Â°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 734, 12 September 2018, Pages 184-191
Journal: Materials Science and Engineering: A - Volume 734, 12 September 2018, Pages 184-191
نویسندگان
Xiaofeng Hu, Yuanyuan Song, Desheng Yan, Lijian Rong,