Effect of surface mechanical attrition treatment of titanium using alumina balls: surface roughness, contact angle and apatite forming ability

Abstract

The effect of surface mechanical attrition treatment (SMAT) of commercially pure titanium (CP-Ti) using 8 mm ? alumina balls was studied. SMAT induced plastic deformation, increased the surface roughness, reduced the grain size and decreased the contact angle (from 64° to 43°) with a corresponding increase in surface energy (from 32 to 53 mJ/m²). Untreated CP-Ti and those treated using alumina balls for 900 s reveals no apatite growth until the 28th day of immersion whereas those treated for 1800 and 2700 s exhibit apatite growth in selective areas and the extent of growth is increased with increase in immersion time in SBF. The study reveals that SMAT using alumina balls is beneficial in imparting the desired surface characteristics, provided the surface contamination is limited, which would otherwise decrease the apatite forming ability.

Keywords

nanostructured material / surface modification / scanning electron microscopy (SEM) / surface mechanical attrition treatment (SMAT)

References

[1] Kovacs P, Davidson J A. Chemical and electrochemical aspects of the biocompatibility of titanium and its alloys. In: Brown S A, Lemons J E, eds. STP 1272. Medical Applications of Titanium and Its Alloys: The Materials and Biological Issues . PA, USA: American Society of Testing and Materials, 1996, 163–178
[2] Liu X, Chu P K, Ding C. Surface modification of titanium, titanium alloys, and related materials for biomedical applications. Materials Science and Engineering R: Reports , 2004, 47(3–4): 49–121
[3] Anderson J M, Gristine A G, Hanson S R. Host reactions to biomaterials and their evaluation. In: Ratner B D, Hoffman A S, Schoen F J, ., eds. Biomaterials Science: An Introduction to Materials in Medicine . San Diego: Academic Press, Inc., 1996, 165–214
[4] Legeros R Z, Craig R G. Strategies to affect bone remodeling: Osteointegration. Journal of Bone and Mineral Research , 1993, 8(S2): S583–S596
[5] Le Guéhennec L, Soueidan A, Layrolle P, . Surface treatments of titanium dental implants for rapid osseointegration. Dental Materials , 2007, 23(7): 844–854
[6] Boyan B D, Lohmann C H, Dean D D, . Mechanisms involved in osteoblast response to implant surface morphology. Annual Review of Materials Research , 2001, 31(1): 357–371
[7] Puleo D A, Nanci A. Understanding and controlling the bone-implant interface. Biomaterials , 1999, 20(23–24): 2311–2321
[8] Schuh A, Holzwarth U, Kachler W, . Surface characterisation of shot peened implants with glas beads in total hip arthroplasty. Zentralblatt fur Chirurgie , 2004, 129(3): 225–229 (in German)
[9] Schuh A, Holzwarth U, Kachler W, . Surface characterization of Al₂O₃-blasted titanium implants in total hip arthroplasty. Orthopade , 2004, 33(8): 905–910 (in German)
[10] Schuh A, Uter W, Holzwarth U, . The use of a thermomechanical cleaning procedure for removal of residual particles of corund blasted or glass bead peened implants in total hip arthoplasty. Zentralblatt fur Chirurgie , 2005, 130(4): 346–352 (in German)
[11] Choi C R, Yu H S, Kim C H, . Bone cell responses of titanium blasted with bioactive glass particles. Journal of Biomaterials Applications , 2010, 25(2): 99–117
[12] Rüger M, Gensior T J, Herren C, . The removal of Al₂O₃ particles from grit-blasted titanium implant surfaces: effects on biocompatibility, osseointegration and interface strength in vivo. Acta Biomaterialia , 2010, 6(7): 2852–2861
[13] Wennerberg A, Albrektsson T, Andersson B, . A histomorghometric study of screw-shaped and removal torque titanium implants with three different surface topographies. Clinical Oral Implants Research , 1995, 6(1): 24–30
[14] Aparicio C, Gil F J, Fonseca C, . Corrosion behaviour of commercially pure titanium shot blasted with different materials and sizes of shot particles for dental implant applications. Biomaterials , 2003, 24(2): 263–273
[15] Zhu K Y, Vassel A, Brisset F, . Nanostructure formation mechanism of α-titanium using SMAT. Acta Materialia , 2004, 52(14): 4101–4110
[16] Guo F A, Zhu K Y, Trannoy N, . Examination of thermal properties by scanning thermal microscopy in ultrafine-grained pure titanium surface layer produced by surface mechanical attrition treatment. Thermochimica Acta , 2004, 419(1–2): 239–246
[17] Wen M, Gu J F, Liu G, . Formation of nanoporous titania on bulk titanium by hybrid surface mechanical attrition treatment. Surface and Coatings Technology , 2007, 201(14): 6285–6289
[18] Laleh M, Kargar F. Formation of high bioactive nanoporous titania film by hybrid surface mechanical attrition treatment. Materials Letters , 2011, 65(14): 2295–2298
[19] Wen M, Liu G, Gu J F, . The tensile properties of titanium processed by surface mechanical attrition treatment. Surface and Coatings Technology , 2008, 202(19): 4728–4733
[20] Jamesh M, Sankara Narayanan T S N, Chu P K, . Effect of surface mechanical attrition treatment (SMAT) on the in vitro corrosion behaviour of commercially pure titanium. Progress in Natural Science: Materials International (in press)
[21] Zhao C, Han P, Ji W, . Enhanced mechanical properties and in vitro cell response of surface mechanical attrition treated pure titanium. Journal of Biomaterials Applications , 2012, 27(2): 113–118
[22] Lu K, Lu J. Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment. Materials Science and Engineering A , 2004, 375–377: 38–45
[23] Balusamy T, Kumar S, Sankara Narayanan T S N. Effect of surface nanocrystallization on the corrosion behaviour of AISI 409 stainless steel. Corrosion Science , 2010, 52(11): 3826–3834
[24] Khang D, Lu J, Yao C, . The role of nanometer and sub-micron surface features on vascular and bone cell adhesion on titanium. Biomaterials , 2008, 29(8): 970–983
[25] Liu X, Lim J Y, Donahue H J, . Influence of substratum surface chemistry/energy and topography on the human fetal osteoblastic cell line hFOB 1.19: Phenotypic and genotypic responses observed in vitro. Biomaterials , 2007, 28(31): 4535–4550
[26] Kokubo T, Takadama H. How useful is SBF in predicting in vivo bone bioactivity? Biomaterials , 2006, 27(15): 2907–2915
[27] Cochran D L, Schenk R K, Lussi A, . Bone response to unloaded and loaded titanium implants with a sandblasted and acid-etched surface: a histometric study in the canine mandible. Journal of Biomedical Materials Research , 1998, 40(1): 1–11
[28] Wennerberg A, Hallgren C, Johansson C, . A histomorphometric evaluation of screw-shaped implants each prepared with two surface roughnesses. Clinical Oral Implants Research , 1998, 9(1): 11–19
[29] Becker W, Becker B E, Ricci A, . A prospective multicenter clinical trial comparing one- and two-stage titanium screw-shaped fixtures with one-stage plasma-sprayed solid-screw fixtures. Clinical Implant Dentistry and Related Research , 2000, 2(3): 159–165
[30] Albrektsson T, Wennerberg A. The impact of oral implants — past and future, 1966–2042. Journal of the Canadian Dental Association , 2005, 71(5): 327 (5 pages)
[31] Hansson S, Norton M. The relation between surface roughness and interfacial shear strength for bone-anchored implants. A mathematical model. Journal of Biomechanics , 1999, 32(8): 829–836
[32] Balakrishnan A, Lee B C, Kim T N, . Corrosion behaviour of ultra fine grained titanium in simulated body fluid for implant application. Trends in Biomaterials and Artificial Organs , 2008, 22(1): 58–64
[33] Buser D, Broggini N, Wieland M, . Enhanced bone apposition to a chemically modified SLA titanium surface. Journal of Dental Research , 2004, 83(7): 529–533
[34] Zhao G, Schwartz Z, Wieland M, . High surface energy enhances cell response to titanium substrate microstructure. Journal of Biomedical Materials Research Part A , 2005, 74A(1): 49–58
[35] Giavaresi G, Fini M, Cigada A, . Mechanical and histomorphometric evaluations of titanium implants with different surface treatments inserted in sheep cortical bone. Biomaterials , 2003, 24(9): 1583–1594
[36] Carlsson L V, Alberktsson T, Berman C. Bone response to plasma-cleaned titanium implants. The International Journal of Oral & Maxillofacial Implants , 1989, 4(3): 199–204
[37] Wennerberg A, Bolind P, Albrektsson T. Glow-discharge pretreated implants combined with temporary bone tissue ischemia. Swedish Dental Journal , 1991, 15(2): 95–101
[38] Faghihi S, Zhilyaev A P, Szpunar J A, . Nanostructuring of a titanium material by high-pressure torsion improves pre-osteoblast attachment. Advanced Materials , 2007, 19(8): 1069–1073
[39] Thirugnanam A, Sampath Kumar T S, Chakkingal U. Tailoring the bioactivity of commercially pure titanium by grain refinement using groove pressing. Materials Science and Engineering C , 2010, 30(1): 203–208
[40] Wang X J, Li Y C, Lin J G, . In vitro bioactivity evaluation of titanium and niobium metals with different surface morphologies. Acta Biomaterialia , 2008, 4(5): 1530–1535