Hydroxyapatite (HA,Ca10(PO4)6(OH)2) coating was fabricated on pure Ti (TA2) by laser cladding technology.The phase structure,microstructure,microhardness and electrochemical behavior of the laser cladded HA coating in artificial body fluid were investigated.The results show that the HA coating is mainly composed of highly crystallized HA.A transitional layer between HA coating and Ti substrate is formed.Microhardness measurement shows the gradually increasing of microhardness from 150 HV at TA2 substrate to 600 HV at transitional layer,and followed by a decreasing to 400 HV at HA coated layer,Electrochemical corrosion tests show that the HA coating has higher open circuit potential,lower corrosion current density and corrosion rate in comparison to the TA2 substrate.
参考文献
| [1] | S. Sathish;M. Geetha;N.D. Pandey;C. Richard;R. Asokamani .Studies on the corrosion and wear behavior of the laser nitrided biomedical titanium and its alloys[J].Materials science & engineering, C. Biomimetic and supramolecular systems,2010(3):376-382. |
| [2] | L. Le Guehennec;A. Soueidan;P. Layrolle;Y. Amouriq .Surface treatments of titanium dental implants for rapid osseointegration[J].Dental materials,2007(7):844-854. |
| [3] | Froimson MI;Garino J;Machenaud A;Vidalain JP .Minimum 10-year results of a tapered, titanium, hydroxyapatite-coated hip stem: an independent review.[J].The Journal of arthroplasty,2007(1):1-7. |
| [4] | Subramani K;Jung RE;Molenberg A;Hammerle CH .Biofilm on dental implants: a review of the literature.[J].The International journal of oral & maxillofacial implants,2009(4):616-626. |
| [5] | de Jonge LT;Leeuwenburgh SC;Wolke J .Organic-inorganic surface modifications for titanium implant surfaces.[J].Pharmaceutical research,2008(10):2357-2369. |
| [6] | J. Liang;P. Bala Srinivasan;C. Blawert;M. Stormer;W. Dietzel .Electrochemical corrosion behaviour of plasma electrolytic oxidation coatings on AM50 magnesium alloy formed in silicate and phosphate based electrolytes[J].Electrochimica Acta,2009(14):3842-3850. |
| [7] | LIN Naiming,XIE Faqin,ZHONG Tao,WU Xiangqing,TIAN Wei.Influence of adding various rare earths on microstructures and corrosion resistance of chromizing coatings prepared via pack cementation on P110 steel[J].稀土学报（英文版）,2010(02):301-304. |
| [8] | FAN Ailan,QIN Lin,TIAN Linhai,TANG Bin.Corrosion Resistance of Molybdenum Nitride Modified Ti6Al4V Alloy in HCl Solution[J].武汉理工大学学报（材料科学版）（英文版）,2008(03):358-361. |
| [9] | 贺定勇,孙旭峰,栗卓新,蒋建敏,王智慧.等离子喷涂羟基磷灰石涂层结晶度的分析[J].北京工业大学学报,2006(12):1130-1133. |
| [10] | 徐益,秦传江,赵柏森,黄楠.钛基羟基磷灰石涂层的界面结构及梯度设计[J].表面技术,2005(01):58-61. |
| [11] | Eunsung Prak;Robert A. Condrate Sr .Graded coating of hydroxyapatite and titanium by atmospheric plasma spraying[J].Materials Letters,1999(5):228-234. |
| [12] | Chen CZ;Wang DG;Bao QH;Zhang L;Lei TQ .Influence of laser remelting on the microstructure and phases constitution of plasma sprayed hydroxyapatite coatings[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/4):98-103. |
| [13] | Xuanyong Liu;Paul K. Chu;Chuanxian Ding .Surface modification of titanium, titanium alloys, and related materials for biomedical applications[J].Materials Science & Engineering, R. Reports: A Review Journal,2004(3/4):49-121. |
| [14] | Gary J. Cheng;Daniel Pirzada;M. Cai;Pravansu Mohanty;Amit Bandyopadhyay .Bioceramic coating of hydroxyapatite on titanium substrate with Nd-YAG laser[J].Materials science & engineering, C. Biomimetic and supramolecular systems,2005(4):541-547. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%