在600～900℃温度下,0.5～72 h时间范围内空气气氛下对Ti6Al7Nb进行热氧化,根据增重曲线计算其氧化动力学规律,利用XRD、XPS分析表面氧化层的相组成、成分和价态,并以Ti6Al4V合金做为比照.结果表明,Ti6Al7Nb合金较Ti6Al4V合金抗氧化能力更强.同等氧化条件下,Ti6Al7Nb合金的氧化速率常数(k)更小.对短时间(1 h)氧化的样品的表面分析显示:各合金元素均以最高价态或稳定价态存在,其中Al和V被富集,而Nb则贫化;另外,Ti6Al7Nb合金和Ti6Al4V合金氧化层主要由金红石型TiO2(R-TiO2)组成,Al2O3相仅出现在900 ℃Ti6Al4V合金样品中.
参考文献
| [1] | Guleryuz H;Cimenoglu H .Oxidation of Ti-6Al-4V alloy[J].Journal of Alloys and Compounds,2009,47(02):241-246. |
| [2] | Guo W Y;Sun J;Wn J S .Electrochemical and XPS studies of corrosion behavior of Ti-23Nb-0.7Ta-2Zr-O alloy in Ringer' s solution[J].Materials Chemistry and Physics,2009,113:816-820. |
| [3] | I. Milosev;T. Kosec;H.-H. Strehblow .XPS and EIS study of the passive film formed on orthopaedic Ti-6Al-7Nb alloy in Hank's physiological solution[J].Electrochimica Acta,2008(9):3547-3558. |
| [4] | Atashbar M Z;Sun H T;Gong B et al.XPS study of Nb-doped oxygen sensing TiO2 thin films prepared by sol-gel method[J].Thin Solid Films,1998,326:238-244. |
| [5] | Alov N;Kutsko D;Spirovova I;Bastl Z .XPS study of vanadium surface oxidation by oxygen ion bombardment[J].Surface Science: A Journal Devoted to the Physics and Chemistry of Interfaces,2006(8):1628-1631. |
| [6] | Moulder J F;Stickle W F;Sobol P E.Handbook of X-Ray Photoelectron Spectroscopy[M].Perkin-Elmer Co.Physical Electronics Divisions USA,1992 |
| [7] | Du H L;Datta K;Lewis D B et al.High-temperature corrosion of Ti and Ti-6Al-4V[J].Oxidation of Metals,1996,45:507-527. |
| [8] | Stroosnijder M F;Zheng N;Quadakkers W J et al.The effect of niobium ion inplantation on the oxidation behavior of a y-TiAl-based intermetallic[J].Oxidation of Metals,1996,46:19-35. |
| [9] | Jiang Huiren;Hirohasi M;Lu Yun et al.Effect of Nb on the high temperature oxidation of Ti-(0-50 at.%) Al[J].Scripta Materialia,2002,46:639-643. |
| [10] | Lids D R(Ed).CRC Handbook of Chemistry and Physics[M].Booca Raton Florida:CRC Preas,1999:8-30. |
| [11] | Dean J A(Ed).Lange's Handbook of Chemistry[M].北京:世界图书出版公司,1999:136. |
| [12] | Y. Tanaka;Tanaka;M;Nakai;T;Akahori;M;Niinomi;Y;Tsutsumi;H;Doi;T;Hanawa;M. Nakai;T. Akahori;M. Niinomi;Y. Tsutsumi;H. Doi;T. Hanawa .Characterization Of Air-formed Surface Oxide Film On Ti-29nb-13ta-4.6zr Alloy Surface Using Xps And Aes[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2008(8):2111-2116. |
| [13] | Wang XX;Yan W;Hayakawa S;Tsuru K;Osaka A .Apatite deposition on thermally and anodically oxidized titanium surfaces in a simulated body fluid.[J].Biomaterials,2003(25):4631-4637. |
| [14] | 郭爱红,崔文芳,刘向宏,周廉.医用Ti6Al7Nb合金氧化行为及其磨损性能[J].东北大学学报（自然科学版）,2008(07):996-999. |
| [15] | Spriano S;Bosetti M;Bronzoni M;Verne E;Maina G;Bergo V;Cannas M .Surface properties and cell response of low metal ion release Ti-6Al-7Nb alloy after multi-step chemical and thermal treatments.[J].Biomaterials,2005(11):1219-1229. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%