曹耿华,罗锡才,张大童,刘一雄,郑振兴,高吉祥

• 1:广东技术师范学院机电学院
• 2:华南理工大学广东省金属新材料制备与成形重点实验室

摘要(Abstract)：

为研究细晶镁合金的生物腐蚀性能,本研究采用水下搅拌摩擦加工技术(SFSP)制备了晶粒尺寸约为1.3μm、细小第二相颗粒弥散分布的细晶Mg-Y-Nd合金。通过质量损失测试研究其在模拟体液中的生物腐蚀性能,通过拉伸性能测试研究其腐蚀后的力学性能变化,利用扫描电镜观察其腐蚀后的表面及拉伸断口形貌。结果表明:SFSP技术有助于提高镁合金在模拟体液中的耐腐蚀性能;由于微观组织的细化和均匀化,细晶Mg-Y-Nd合金在模拟体液中呈现的是均匀腐蚀行为,在浸泡12 d后还保持了一定的承载强度。

关键词(KeyWords)： Mg-Y-Nd合金;搅拌摩擦加工;生物腐蚀性能;力学性能;均匀腐蚀

Abstract:

Keywords:

基金项目(Foundation): 广东省自然科学基金团队项目(2015A030312003);; 广东省金属新材料制备与成形重点实验室开放课题(GJ201602)

作者(Author): 曹耿华,罗锡才,张大童,刘一雄,郑振兴,高吉祥

DOI: 10.13289/j.issn.1009-6264.2017-0073

参考文献(References)：

• [1]丁文江,向亚贞,常建卫,等.Mg-Al系和Mg-Re系合金在Na Cl溶液中的腐蚀电化学行为[J].中国有色金属学报,2009,19(10):1713-1719.DING Wen-jiang,XIANG Ya-zhen,CHANG Jian-wei,et al.Corrosion and electrochemical behaviour of Mg-Al alloys and Mg-RE alloys in Na Cl solution[J].The Chinese Journal of Nonferrous Metals,2009,19(10):1713-1719.
• [2]ZHENG Y F,GU X N,WITTE F.Biodegradable metals[J].Materials Science and Engineering R,2014,77(2):1-34.
• [3]程丹丹,文九巴,贺俊光,等.稀土Y对AZ80镁合金组织及耐蚀性能的影响[J].材料热处理学报,2012,33(3):52-56.CHENG Dan-dan,WEN Jiu-ba,HE Jun-guang,et al.Effects of yttrium addition on microstructure and corrosion resistance of AZ80 magnesium alloys[J].Transactions of Materials and Heat Treatment,2012,33(3):52-56.
• [4]李琮,李明照,王跃琪,等.Nd对挤压态AZ31镁合金耐腐蚀性能的影响[J].稀有金属材料与工程,2011,40(1):156-160.LI Cong,LI Ming-zhao,WANG Yue-qi,et al.Effects of Nd on corrosion resistant property of as-extruded AZ31 alloys[J].Rare Metal Materials and Engineering,2011,40(1):156-160.
• [5]GU X N,LI X L,ZHOU W R,et al.Microstructure,biocorrosion and cytotoxicity evaluations of rapid solidified Mg-3Ca alloy ribbons as a biodegradable material[J].Biomedical Materials,2010,5(3):35013.
• [6]ZHANG X,YUAN G Y,WANG Z.Mechanical properties and biocorrosion resistance of Mg-Nd-Zn-Zr alloy improved by cyclic extrusion and compression[J].Materials Letters,2012,74(5):128-131.
• [7]SONG D,MA A B,JIANG J H,et al.Corrosion behavior of bulk ultra-fine grained AZ91D magnesium alloy fabricated by equal-channel angular pressing[J].Corrosion Science,2011,53(1):362-373.
• [8]SONG G L,ATRENS A.Corrosion mechanisms of magnesium alloys[J].Advanced Engineering Materials,1999,1(1):11-33.
• [9]黄春平,柯黎明,邢丽,等.搅拌摩擦加工研究进展及前景展望[J].稀有金属材料与工程,2011,40(1):183-188.HUANG Chun-ping,KE Li-ming,XING Li,et al.Research progress and prospect of friction stir processing[J].Rare Metal Materials and Engineering,2011,40(1):183-188.
• [10]ARGADE G R,PANIGRAHI S K,MISHRA R S.Effects of grain size on the corrosion resistance of wrought magnesium alloys containing neodymium[J].Corrosion Science,2012,58(5):145-151.
• [11]金金.搅拌摩擦加工对生物医用Mg-Zn-Y-Nd合金组织和性能的影响[D].郑州:郑州大学,2013:56-58.JIN Jin.Effect of friction stir processing on the microstructure and properties of Mg-Zn-Y-Nd alloy for biomedical materials[D].Zhengzhou:Zhengzhou University,2013:56-58.
• [12]KOKUBO T,TAKADAMA H.How useful is SBF in predicting in vivo bone bioactivity?[J].Biomaterials,2006,27(15):2907-2915.
• [13]CAO G H,ZHANG D T,CHAI F,et al.Superplastic behavior and microstructure evolution of a fine-grained Mg-Y-Nd alloy processed by submerged friction stir processing[J],Materials Science and Engineering A,2015,642:157-166.
• [14]WITTE F,FISCHER J,NELLESEN J,et al.In vitro and in vivo corrosion measurements of magnesium alloys[J].Biomaterials,2006,27(7):1013-1018.
• [15]CAO G H,ZHANG D T,ZHANG W W,et al.In vitro corrosion study of friction stir processed WE43 magnesium alloy in simulated body fluid[J].Materials,2016,9(7):542-556.
• [16]CHU P W,MARQUIS E A.Linking the microstructure of a heat-treated WE43 Mg alloy with its corrosion behavior[J].Corrosion Science,2015,101:94-104.
• [17]BIRBILIS N,RALSTON K D,VIRTANEN S,et al.Grain character influences on corrosion of ECAPed pure magnesium[J].British Corrosion Journal,2010,45(3):224-230.
• [18]马晓刚,刘德宝,刘林波,等.生物可降解Mg-3Zn-0.8Zr-x Mn合金的组织与性能[J].材料热处理学报,2015,36(2):27-31.MA Xiao-gang,LIU De-bao,LIU Lin-bo,et al.Microstructure and properties of Mg-3Zn-0.8Zr-x Mn alloy[J].Transactions of Materials and Heat Treatment,2015,36(2):27-31.
• [19]Ding Y F,Wen C,Hodgson P,et al.Effects of alloying elements on the corrosion behavior and biocompatibility of biodegradable magnesium alloys:a review[J].Journal of Materials Chemistry B,2014,2(14):1912-1933.

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