Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Tạp chí quốc tế 2023
Số tạp chí 16(2023) Trang: 751
Tạp chí: Materials

To minimize the stress shielding effect of metallic biomaterials in mimicking bone, the bodycentered cubic (bcc) unit cell-based porous CoCrMo alloys with different, designed volume porosities
of 20, 40, 60, and 80% were produced via a selective laser melting (SLM) process. A heat treatment
process consisting of solution annealing and aging was applied to increase the volume fraction of
an
-hexagonal close-packed (hcp) structure for better mechanical response and stability. In the
present study, we investigated the impact of different, designed volume porosities on the compressive
mechanical properties in as-built and heat-treated CoCrMo alloys. The elastic modulus and yield
strength in both conditions were dramatically decreased with increasing designed volume porosity.
The elastic modulus and yield strength of the CoCrMo alloys with a designed volume porosity of
80% exhibited the closest match to those of bone tissue. Different strengthening mechanisms were
quantified to determine their contributing roles to the measured yield strength in both conditions.
The experimental results of the relative elastic modulus and yield strength were compared to the
analytical and simulation modeling analyses. The Gibson–Ashby theoretical model was established
to predict the deformation behaviors of the lattice CoCrMo structures.


Các bài báo khác
Số tạp chí 460(2023) Trang: 128296
Tạp chí: Applied Mathematics and Computation
Số tạp chí 54(2023) Trang: 2077-2086
Tạp chí: Communications in Soil Science and Plant Analysis
Số tạp chí 44(2023) Trang: 135-149
Tạp chí: Opuscula Mathematica
Số tạp chí 33(2023) Trang: 309–322
Tạp chí: Yugoslav Journal of Operations Research
Số tạp chí 3(2023) Trang: 141-147
Tạp chí: International Journal of Plant Based Pharmaceuticals
Số tạp chí 47(2023) Trang: 102612
Tác giả: Phan Văn Phúc
Tạp chí: Telecommunications Policy


Vietnamese | English






 
 
Vui lòng chờ...