کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1576538 | 1514778 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ti6Al4V foams fabricated by spark plasma sintering with post-heat treatment
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Ti6Al4V foams were fabricated by the spark plasma sintering (SPS) with post-heat treatment using a blend of Ti6Al4V and sodium chloride powders. The microstructure and properties of the foams were investigated by scanning electron microscopy, X-ray micro-CT, Synchrotron X-ray, compression test and cell experiments. Results showed that the Ti6Al4V foams fabricated at 700 °C and 50 MPa in the SPS cannot get high relative densities. These sintered foams were post-heat treated in a pressureless mode of the SPS at 1100 °C for 5 min. This heat treatment is very effective to reduce the microporosity and to densify the foam walls. Young's modulus of the foams was in the range of 33.0-9.5 GPa and yield strength ranged from 110.2 MPa to 43.0 MPa with porosity values from 44.7% to 70.0% obeying the Gibson-Ashby models. The human osteoblast cell line MG-63 validated the cellular acceptance of the foam surfaces. The pressureless SPS provides a new method for the heat treatment of metallic foams.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 565, 10 March 2013, Pages 118-125
Journal: Materials Science and Engineering: A - Volume 565, 10 March 2013, Pages 118-125
نویسندگان
Yujie Quan, Faming Zhang, Henrike Rebl, Barbara Nebe, Olaf KeÃler, Eberhard Burkel,