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镁合金AZ31表面Ca–P涂层在Hank’s溶液中的腐蚀行为

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Abstract:

采用电化学沉积法在镁合金AZ31表面制备了Ca–P基生物陶瓷涂层。用扫描电镜、能谱仪和X射线衍射仪分别分析了涂层的形貌、化学成分和相组成。通过析氢腐蚀实验和电化学技术研究了镁合金AZ31及其Ca–P涂层在Hank’s溶液中腐蚀行为。结果表明镁合金表面Ca–P涂层主要为透钙磷石(CaHPO4·2H2O)片状晶体。在Hank’s溶液中浸泡5d,涂层样品的析氢速率远低于镁基体的析氢速率。然而,涂层发生点蚀后腐蚀速率明显加快。Ca–P涂层提高了镁合金的自腐蚀电位,显著降低了镁合金的自腐蚀电流密度。钙磷涂层可明显提高镁合金的耐蚀性能。

References

[1]  UPADHYAY D,PANCHAL M A,DUBEY R S,et al.Corrosion of alloys used in dentistry:a review[J].Mater Sci Eng A,2006,432(9):1–11. [2]DARNLEY P A.A brief review of test methodologies for surface-engineered biomedical implant alloys[J].Surf Coat Technol,2005,198(8):483–490. [3]SARIS N L,MERVALA E,KARPPANEN H,et al.Magnesium—anupdate on physiological,clinical and analytical aspects[J].Clinica Chim Acta,2000,294:1–26. [4]RUDE R K,WEI L Y.Magnesium deficiency:effect on bone and mineral metabolism in the mouse[J].Calcified Tissue Int,2003,72(1):32–41. [5]WILLIAMS D.New interests in magnesium[J].Med Device Technol,2006,17(4):9–11. [6]MARK P S,ALEXIS M P,JERAWALA H,et al.Magnesium and its alloys as orthopedic biomaterials:A review[J].Biomaterials,2006,27(9):1728–1734. [7]LI L C,GAO J C,WANG Y.Evaluation of cyto-toxicity and corrosion behavior of alkali-heat-treated magnesium in simulated body fluid[J].Surf Coat Technol,2004,185(7):92–98. [8]ZENG R C,DIETZEL W,WITTE F,et al.Progress and challenge for magnesium alloys as biomaterials[J].Adv Eng Mater,2008,10:B03–B14. [9]MULLER W D,NASCIMENTO M L,ZEDDIES M,et al.Magnesium and its alloys as degradable biomaterials:corrosion studies using po-tentiodynamic and EIS electrochemical techniques[J].Mater Res,2007,10(1):5–10. [10]OSIGO M,YAMASHITA Y,MATSUMOTO T.The process of physical weakening and dissolution of the HA-coated implant in bone and soft tissue[J].J Det Res,1998,77(6):1426–1434. [11]WITTEA F,FISCHER J,NELLESEN J,et al.In vitro and in vivo corrosion measurements of magnesium alloys[J].Biomaterials,2006,27:1013–1018. [12]SONG Y W,SHAN D Y,HAN E H.Electrodeposition of hydroxya-patite coating on AZ91D magnesium alloy for biomaterial application[J].Mater Lett,2008,62(17):3276–3279. [13]CUI F Z,YANG J X,JIAO Y P,et al.Calcium phosphate coating on magnesium alloy for modification of degradation behaviour[J].Front Mater Sci China,2008,2(2):143–148. [14]WITTE F,FEYERABEND F,MAIER P,et al.Biodegradable magne-sium–hydroxyapatite metal matrix composites[J].Biomaterials,2007,28(5):2163–2174. [15]张春艳,曾荣昌,陈君,等.镁合金AZ31表面液相沉积Ca–P生物陶瓷涂层的研究[J].稀有金属材料与工程,2009,38(8):1363–1367.ZHANG Chuiyang,ZENG Rongcang,CHEN Jun,et al.Rare Met Mater Eng(in Chinese),2009,38(8):1363–1367. [16]HING K A,BEST S M,TANNER K E,et al.Quantification of bone ingrowth within bone-derived porous hydroxyapatite implants of varying density[J].Mater Sci:Mater Med,1999,7(10):663–667. [17]时海燕,胡仁,林昌健.羟基磷灰石涂层的电化学可控制备及生物性能的初步表征[J].电化学,2005,11(4):440–443.SHI Hainyan,HU Ren,LIN Changjian.Electrochemistry(in Chinese),2005,11(4):440–443. [18]HAN Y,XU K W.Morphology and composition of hydroxyapatite coatings prepared by hydrothermal treatment on electrodeposited brushite coatings[J].Mater Sci Mater Med,1999,10(2):243–248. [19]王勇,高家诚,张亚平,等.钛合金表面仿生矿化的热力学分析[J].稀有金属材料与工程,2004,33(4):397–399.WANG Yong,GAo Jiacheng,ZHANG Yaping,et al.Rare Met Mater Eng(in Chinese),2004,33(4):397–399. [20]肖秀峰,唐晓恋,高燕娇,等.工艺条件对电沉积磷酸钙盐组分和结构的影响[J].材料保护,2005,38(1):29–32.XIAO Xiufeng,TANG Xiaolian,GAO Yianjiao,et al.Mater Protect(in Chinese),2005,38(12):29–32. [21]MLASY A,BOHNER M.Brushite conversion into apatite[J].Eur Cells Mater,2005,10:28–32. [22]SONG G,SONG S.A possible biodegradable magnesium implant material[J].Adv Eng Mater,2007,9(4):298–302. [23]AGHION E E,ARNON A,ATAR D,et al.生物可降解镁合金及其应用[P].CN Patent,PCT/IL2007/000520.2007–05–20.AGHION E E,ARNON A,ATAR D,et al.Biodegradable magnesium alloys and uses thereof(in Chinese).CN Patent,PCT/IL2007/000520.2007–05–20.

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