| 학회 |
한국재료학회 |
| 학술대회 |
2012년 봄 (05/17 ~ 05/18, 무주덕유산리조트) |
| 권호 |
18권 1호 |
| 발표분야 |
D. 바이오재료(Biomaterials) |
| 제목 |
Additive manufacturing and mechanical properties evolution of biomedical Co-Cr-Mo alloys by using EBM method |
| 초록 |
The microstructures and mechanical properties of Co-29Cr-6Mo alloy with C and N additions, produced by additive manufacturing using electron beam melting (EBM) method, were studied using X-ray diffraction, electron back scatter diffraction, transmission electron microscope, Vickers hardness tests, and tensile tests, focusing on the influences on the build direction and the various heat treatments after build. It is found that the microstructures for the as built specimens were changed from columnar to equiaxed grain structure with average grain size of approximately 10-20μm due to the heat treatment employing the reverse transformation from a lamellar (hcp + Cr2N) phase to an fcc. Our results will contribute to the development of biomedical Ni-free Co–Cr–Mo–N-C alloys, produced by EBM method, with refined grain size and good mechanical properties, without requiring any hot workings. |
| 저자 |
Akihiko Chiba1, Shingo Kurosu2, Hiroaki Matsumoto1, Yunping Li2, Yuichiro Koizumi1
|
| 소속 |
1Institute for Materials Research, 2Tohoku Univ. |
| 키워드 |
Co-Cr-Mo; Additive manufacturing; Electron beam melting; X-ray diffraction; Transmission electron microscope
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| E-Mail |
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