摘要
采用高能球磨和热压烧结法制备Mn质量分数分别为1%、2%和3%的Mg-1Mn、Mg-2Mn和Mg-3Mn合金,研究其在SBF溶液中的腐蚀行为.将Mg-Mn合金在SBF溶液中动电位极化后,Mg-2Mn合金的自腐蚀电位约为-0.4V,Mg-1Mn合金的自腐蚀电位约为-1.4 V,Mg-3Mn合金的自腐蚀电位约为-1.62 V.在SBF中浸泡腐蚀后,三种合金的质量损失速度依次为:Mg-3Mn快于Mg-1Mn,最慢为Mg-2Mn.在Mg-1Mn、Mg-2Mn和Mg-3Mn合金中,Mg-2Mn合金在SBF溶液中的耐蚀性最好.
High energy ball milling and hot pressing sintering were employed to prepare Mg-1 Mn,Mg-2 Mn and Mg-3 Mn alloys with 1 %,2 % and 3 % Mn content.Electrochemical corrosion behaviors of Mg-Mn alloy with different Mn content in SBF solution were studied by potentiodynamic polarization and.The results showed that Mg-2 Mn alloy corrosion potential was about-0.4 V,the self corrosion potential of Mg-1 Mn alloy was about-1.4 V,the self corrosion potential of Mg-3 Mn alloy was about-1.62 V.Weight loss speed of three alloys immersed in SBF solution was in the order Mg-3 Mn alloy >Mg-1 Mn alloy secondly > Mg-2 Mn alloy.Among these alloys,Mg-2 Mn alloy in SBF solution has the best corrosion resistance.
引文
[1]李世普.生物医用材料导论[M].武汉:武汉工业大学出版社,2000:55.
[2]刘宣勇.生物医用钛材料及其表面改性[M].北京:化学工业出版社,2009:25.
[3]周世杰,黄楠,龚旭,等.挤压温度对Mg-Zn-Mn生物镁合金组织与腐蚀性能的影响[J].热加工工艺,2013,42(18):80-81.
[4]廖燚,王勇平,何耀华,等.可降解镁合金腐蚀及生物相容性[J].国际骨科学杂志,2011,32(3):158-159.
[5]张丁非,徐杏杏,齐福刚,等.含钇Mg-Zn系镁合金的研究现状[J].铸造,2012,61(3):266-267.
[6]黄光胜,范永革,汤爱涛,等.镁及镁合金腐蚀最新研究进展[J].材料导报,2002,16(4):38-39.
[7]王福会,杜克勤,张伟.镁合金的腐蚀与防护研究进展[J].中国材料进展,2011,30(2):29-30.
[8]宋光铃.镁合金腐蚀与防护[M].北京:化学工业出版社,2006:35.