利用微弧氧化方法在Ti3Al基合金上制备了厚度达120 μm的陶瓷膜.研究了陶瓷膜的生长曲线,发现膜层厚度随着氧化时间的增加而增加,在不同氧化阶段生长速度不同,膜层以向外生长为主;显微结构和硬度分析都发现,陶瓷膜分为两层结构,即内层和外层,陶瓷膜内外层的主要物相是(Ti0.6Al0.2Nb0.2)O2相,外层中还有一定数量的无定形SiO2相;陶瓷膜的最大显微硬度可以达到基体硬度的3倍左右.显微划痕实验表明:膜与基体间结合力大于40N,膜与基体结合良好.电化学极化曲线测试显示陶瓷膜在3.5%盐水溶液中的耐蚀性与Ti3Al基体相比有较大的提高.
参考文献
[1] | 李宝辉,孔凡涛,陈玉勇,陈子勇,张军伟.TiAl金属间化合物的合金设计及研究现状[J].航空材料学报,2006(02):72-78. |
[2] | 李成功;傅恒志;于翘.航空航天材料[M].北京:国防工业出版社,2002 |
[3] | 陈俐,胡伦骥,巩水利,段爱琴.Ti3Al-Nb金属间化合物CO2激光焊工艺[J].焊接,2004(12):10-13. |
[4] | 李梁,孙健科,孟祥军.钛合金的应用现状及发展前景[J].钛工业进展,2004(05):19-24. |
[5] | X.Y.Li;S. Taniguchi;Y.-C. Zhu .Oxidation behavior of TiAl protected by Si + Nb combined ion implantation[J].Intermetallics,2001(5):443-449. |
[6] | Tang ZL.;Wu WT.;Wang FH. .Effect of MCrAlY overlay coatings on oxidation resistance of TiAl intermetallics[J].Surface & Coatings Technology,1998(3):248-252. |
[7] | DIAZ P;RALPH R;EDIRISINGHE M J .Transmission electron microscope characterization of a plasma-sprayed ZrO2-Y2O3-TiO2 thermal barrier coating[J].Materials Characterization,1998,41:55-67. |
[8] | 邵德春.激光表面合金化提高钛合金高温抗氧化性能的研究[J].中国激光,1997(03):281. |
[9] | 刘道新,陈华,何家文.等离子渗氮与喷丸强化复合改进钛合金抗微动损伤性能[J].材料热处理学报,2001(03):49-54. |
[10] | A. L. Yerokhin;X. Nie;A. Leyland;A. Matthews;S. J. Dowey .Plasma electrolysis for surface engineering[J].Surface & Coatings Technology,1999(2/3):73-93. |
[11] | VOEVODIN A A;YEROKHIN A L;LYUBIMOV V V et al.Characterization of wear protective Al-Si-O coatings formed on Al-based alloys by micro-arc discharge treatment[J].Surface and Coatings Techonology,1996,86-87(02):516-521. |
[12] | YEROKHIN A L;NIE X;LEYLAND A et al.Characterization of oxide films produced by plasma electrolytic oxidation of a Ti-6Al-4V alloy[J].Surface and Coatings Techonology,2000,130(2-3):195-206. |
[13] | Xue WB.;Lai YC.;Chen RY.;Deng ZW. .Analysis of phase distribution for ceramic coatings formed by microarc oxidation on aluminum alloy[J].Journal of the American Ceramic Society,1998(5):1365-1368. |
[14] | 郭宝刚,梁军,陈建敏,田军,刘惠文,徐洮.氧化时间对Ti-6Al-4V微弧氧化膜结构与性能的影响[J].中国有色金属学报,2005(06):981-986. |
[15] | Wenbin XUE;Jiancheng DU;Xiaoling WU;Yongchun LAI .Tribological Behavior of Microarc Oxidation Coatings on Aluminum Alloy[J].ISIJ International,2006(2):287-291. |
[16] | 吴汉华,龙北红,吕宪义,汪剑波,金曾孙.铝合金微弧氧化过程中电学参量的特性研究[J].物理学报,2005(04):1697-1701. |
[17] | Tian J.;Luo ZZ.;Qi SK.;Sun XJ. .Structure and antiwear behavior of micro-arc oxidized coatings on aluminum alloy[J].Surface & Coatings Technology,2002(1):1-7. |
[18] | XUE Wenbin,WANG Chao,LI Yongliang,CHEN Ruyi.Characterization of microarc oxidation coatings on pure titanium[J].稀有金属(英文版),2003(01):42-48. |
[19] | LI Xi-jin;WU Xiao-ling;XUE Wen-bin.Structures and Properties of Ceramic Films on TiAl Intermetallic Compound Fabricated by Microarc Oxidation[J].Surface and Coatings Techonology |
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%