MECHANICAL AND MICROSTRUCTURE PROPERIES OF HIGH POROSITY SINTERED TI- 6AL- 4V POWDER FOR BIOMEDICAL APPLICATIONS | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 16, Volume 34, No 6, November and December 2006, Page 1929-1940 PDF (682.18 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2006.111343 | ||||
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| Author | ||||
Montasser Dewidar 
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| Department of Mechanical Design and Materials, High Institute of Energy, South Valley University Aswan, Egypt. Material & Fracture Lab., Department of Mechanical Design, Chonbuk National University, Duckjin 1-664-14, Jeonju, JB561-756, South Korea. | ||||
| Abstract | ||||
| – Bone injuries and failures often require the inception of implant biomaterial. Recently, research in this area has received increasing attention. Particularly, porous metals are attractive due to its unique physical, mechanical, and new bone tissue ingrowth properties. In the present study, the production of highly porous Ti-6Al-4V parts by powder metallurgical technology is described. A space-holder method used carbamide with different particle size to produce parts with porosities between 35% to 70%. Spherical pores with size ranged from 560 µm to 1.0 mm were obtained depending on the size distribution of the space holder. The compressive strength and Young’s modulus of porous Ti-6Al-4V were determined. Results indicated that compressive strength and Young’s modulus decrease with increasing porosity and pore size. The porous parts are examined using scanning electron microscopy. The microstructure of porous materials is presented, aiming preferentially at biomedical applications. The results show that this process is promising to fabricate biomaterials for bone implants. | ||||
| Keywords | ||||
| Ti-6Al-4V; Porous material; Powder metallurgy; Spaceholder; Mechanical properties | ||||
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