Development of Bio-Compatible Metallic Structures Using Direct Metal Deposition Process

Abstract:

This paper investigates the capabilities of Direct Metal Deposition (DMD) process, which is a novel additive manufacturing technique, for creating structures that can be used as bone implants. Emphasis is on the use of bio-compatible metals, because metals are the most suitable materials in terms of mechanical strength when the requirement arises for supporting and replacing the load bearing bones and joints such as hip and knee. Specimens using two different metal powders, 41C stainless steel and Ti6Al4V titanium alloy, are generated by DMD process on mild steel and titanium plates as substrates respectively. Metallographic samples were made from the cladding, and tested for surface roughness and micro-hardness. The results indicate that at low laser power, hard and strong structures with good porosity can be successfully created using the DMD system.

• Periodical: Advanced Materials Research (Volume 576)
• Pages: 141-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.576.141
• Online since: October 2012
• Authors: Syed H. Riza, Syed H. Masood, Cui'e Wen, William Song
• Keywords: Additive Manufacturing (AM), Bone Implants, Direct Metal Deposition, Microhardness

References

[1] M.N. Smith Peterson, Evolution of Mould Arthroplasty of the hip joint, Journal of Bone and Joint Surgery, 30B (1948) 59-75.

DOI: 10.1302/0301-620x.30b1.59

[2] R. Huiskes, H.H. Weinans, B. Van Rietbergen, The relationship between stress shielding and bone resorption around total hip stems and the effects of flexible materials, Clinical Orthopaedics and Related Research, 274 (1992) 124-134.

DOI: 10.1097/00003086-199201000-00014

[3] F. J. O'Brien, B. A. Harley, Mary A. Waller, I.V. Yannas, L.J. Gibson and P.J. Prendergast, The effect of pore size on permeability and cell attachment in collagen scaffolds for tissue engineering, Technology and Health Care 15 (2007) 3–17.

DOI: 10.3233/thc-2007-15102

[4] C.A. Engh, J.D. Bobyn, A. H. Glassman, Porous Coated Hip Replacement - the Factors Governing Bone Ingrowth, Stress Shielding, and Clinical Results, The Journal of Bone and Joint Surgery 69-B (1987) 45-55.

DOI: 10.1302/0301-620x.69b1.3818732

[5] Vassilis Karageorgiou, David Kaplan, Review - Porosity of 3D biomaterial scaffolds and osteogenesis, Biomaterials 26 (2005) 5474–5491.

DOI: 10.1016/j.biomaterials.2005.02.002

[6] S. Bhattacharya, G.P. Dinda, A.K. Dasgupta, J. Mazumder, Microstructural evolution of AISI 4340 steel during Direct Metal Deposition process, Materials Science and Engineering, 528 (2011) 2309–2318.

DOI: 10.1016/j.msea.2010.11.036

[7] J. Mazumder, D. Dutta, N. Kikuchi, A. Ghosh, Closed loop direct metal deposition: art to part, Optics and Lasers in Engineering, 34 (2000) 397-414.

DOI: 10.1016/s0143-8166(00)00072-5

[8] G.P. Dinda, A.K. Dasgupta, J. Mazumder, Laser aided direct metal deposition of Inconel 625 superalloy: Microstructural evolution and thermal stability, Materials Science and Engineering A 509 (2009) 98–104.

DOI: 10.1016/j.msea.2009.01.009

[9] J. Mazumder, A. Schifferer, J. Choi, Direct materials deposition: designed macro and microstructure, Materials Research Innovations 3 (1999) 118–131.

DOI: 10.1007/s100190050137

[10] Jeong Hwan Jang, Byeong Don Joo, Sung Min Mun, Min Young Sung, and Young Hoon Moon, Application of Direct Laser Melting to Restore Damaged Steel Dies, Metals and Materials International, 17 (2011), 167-174.

DOI: 10.1007/s12540-011-0223-z

[11] G P Dinda, L Song and J Mazumder, Fabrication of Ti-6Al-4V Scaffolds by Direct Metal Deposition, Metallurgical and Materials Transactions 39A (2008) 2914-2922.

DOI: 10.1007/s11661-008-9634-y