将0.4％(质量分数,下同)的Nd添加到Mg-6Zn-1Mn-0.5Ca合金中,以研究稀土元素Nd对合金显微组织和耐生物腐蚀性能的影响.采用金相(OM)、带能谱的扫描电镜(SEM+EDS)以及XRD等手段分析了合金的微观组织.采用静态浸泡、析氢和电化学极化等手段研究了合金在模拟体液(SBF)中的耐腐蚀性能.结果表明,随着Nd的添加,合金的显微组织得到了明显的细化.在Mg-6Zn-1Mn-0.5Ca-0.4Nd合金中形成了2种第二相的机械混合物Ca2Mg6Zn3+ Mg41Nd5.在SBF中浸泡7d以后,较多的此种混合物仍残留于含Nd合金的表面,而在不含Nd的合金中,只有极少量的颗粒状Ca2Mg6Zn3残留在其表面.故Nd的添加显著提高了Mg-6Zn-1Mn-0.5Ca合金的耐生物腐蚀性能.
参考文献
| [1] | Heublein B;Rohde R;Kaese V et al.[J].Heart,2003,89:651. |
| [2] | Li Z;Gu X;Lou S;Zheng Y .The development of binary Mg-Ca alloys for use as biodegradable materials within bone.[J].Biomaterials,2008(10):1329-1344. |
| [3] | Staiger MP;Pietak AM;Huadmai J;Dias G .Magnesium and its alloys as orthopedic biomaterials: A review[J].Biomaterials,2006(9):1728-1734. |
| [4] | Yu K;Chen L;Lei L et al.[J].Metallic Functional Materials(in Chinese)(金属功能材料),2009,16:61. |
| [5] | Witte F;Kaese V;Haferkamp H;Switzer E;Meyer Lindenberg A;Wirth CJ;Windhagen H .In vivo corrosion of four magnesium alloys and the associated bone response.[J].Biomaterials,2005(17):3557-3563. |
| [6] | Song G .[J].Corrosion Science,2007,49:1696. |
| [7] | Zhang S;Zhang X;Zhao .Research on an Mg-Zn alloy as a degradable biomaterial.[J].Acta biomaterialia,2010(2):626-640. |
| [8] | Stulikova I;Smola B .[J].Materials Characterization,2010,61:952. |
| [9] | Zhang E;Yin D;Xu L et al.[J].Materials Science and Engineering C,2009,29:987. |
| [10] | Avedesian M M;Baker H .ASM Specialty Handbook,Magnesium and Magnesium alloy[M].Ohio:ASM International,1999,17 |
| [11] | Helsen J A;Breme H J;eds.Metals as Biomaterials[M].West Sussex,John Wiley and Sons,Ltd,1998:23. |
| [12] | Zhang E;Yang L .[J].Materials Science and Engineering A,2008,497:111. |
| [13] | Zhou H;Wang Y;Liao Z .[J].Journal of Chongqing University,2010,9:146. |
| [14] | Hort N;Huang Y;Fechner D;Stormer M;Blawert C;Witte F;Vogt C;Drucker H;Willumeit R;Kainer KU;Feyerabend F .Magnesium alloys as implant materials--principles of property design for Mg-RE alloys.[J].Acta biomaterialia,2010(5):1714-1725. |
| [15] | Xu C;Liu Y;Liu F.[J].Foundry Equipment and Technology,2009:31. |
| [16] | 余琨,黎文献,张世军.Ce对镁及镁合金中晶粒的细化机理[J].稀有金属材料与工程,2005(07):1013-1016. |
| [17] | Zhang Q;Li Q;Wen J et al.[J].Corrosion Science and Protection Technology,2007,19:119. |
| [18] | Feyerabend F;Fischer J;Holtz J;Witte F;Willumeit R;Drucker H;Vogt C;Hort N .Evaluation of short-term effects of rare earth and other elements used in magnesium alloys on primary cells and cell lines.[J].Acta biomaterialia,2010(5):1834-1842. |
| [19] | Birbilis N;Easton M A;Sudholz A D et al.[J].Corrosion Science,2009,51:683. |
| [20] | Luo Z P;Zhang S Q;Wei G et al.[J].Acta Aeronautica Et Astronautica Sinica,1994,15:860. |
| [21] | 宋云京,李木森,温树林.仿生法制备生物陶瓷涂层的最新研究进展[J].材料导报,2002(05):33-35. |
| [22] | Standard Practice for Calculation for Corrosion Rates and Related Information from Electrochemical Measurements[S].Philadelphia,PA:American Society for Testing and Materials,1999. |
| [23] | Huo H;Li Y;Wang F .[J].Corrosion Science,2004,46:1467. |
| [24] | Standard Practice for Laboratory Immersion Corrosion Testing of Metals[S].Philadelphia,PA:American Society for Testing and Materials,2004. |
| [25] | Kuwahara H;Al-Abdullat Y;Mazaki N et al.[J].Materials Transactions,2001,42:1317. |
| [26] | Yang Y;Peng X;Wu T et al.[J].Journal of Chongqing University,2011,34:57. |
| [27] | 刘楚明;朱秀荣;周海涛.镁合金相图集[M].长沙:中南工业大学出版社,2006:186,301. |
| [28] | Song G L;Atrens A .[J].Advances in Engineering Materials,1999,1:11. |
| [29] | Song G L;Atrens A .[J].Advances in Engineering Materials,2003,5:837. |
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