Academic Journal
Evolution of microstructure and wear-friction behavior of W-30 wt.% Cu nanocomposite produced via a mechanochemical synthesis route
| العنوان: | Evolution of microstructure and wear-friction behavior of W-30 wt.% Cu nanocomposite produced via a mechanochemical synthesis route |
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| المؤلفون: | Zangeneh-madar, K., Abbaszadeh, H., Salahshour-rad, E., Seyyedin, S., Ahangarkani, M. |
| المصدر: | International Journal of Materials Research ; volume 111, issue 6, page 491-503 ; ISSN 2195-8556 1862-5282 |
| بيانات النشر: | Walter de Gruyter GmbH |
| سنة النشر: | 2020 |
| الوصف: | W-30 wt.% Cu nanocomposites were prepared by chemical reduction of a ball-milled WO 3 -CuO powder mixture under a hydrogen atmosphere. The prepared samples were analyzed by means of X-ray diffraction, transition electron microscopy, scanning electron microscopy and energy dispersed spectroscopy. Microstructural studies revealed higher density of the composite sintered at 1300 °C compared to 1 050 °C and 1 150 °C due to activated liquid phase sintering as well as the solution-reprecipitation mechanism at 1300 °C. Density and hardness of the W-Cu composite samples measured in the range of 87.5- 97.3 g cm -3 and 22 - 63 Rockwell A, respectively. It was also found that the wear mechanism of the composite includes the following steps: chipping of tungsten particles, plastic deformation of copper phase and formation of some Cu-free pores and micro-cracks, pulling out of tungsten particles and plastic strain and deformation of tungsten particles and formation of a mechanically mixed layer on the surface. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1515/ijmr-2020-1110606 |
| DOI: | 10.1515/ijmr-2020-1110606/xml |
| DOI: | 10.1515/ijmr-2020-1110606/pdf |
| الاتاحة: | http://dx.doi.org/10.1515/ijmr-2020-1110606 https://www.degruyter.com/document/doi/10.1515/ijmr-2020-1110606/xml https://www.degruyter.com/document/doi/10.1515/ijmr-2020-1110606/pdf |
| رقم الانضمام: | edsbas.1B5FEA8F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1515/ijmr-2020-1110606 |
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