利用浸涂法在TC4钛合金表面制备了高温防氧化玻璃-陶瓷涂层.采用金相观察(OM)、扫描电镜( SEM)、X射线衍射(XRD)、电子探针分析(EPMA)对其性能进行了表征.该涂料是以硅酸盐玻璃为主体,硅酸钠为粘结剂制备而成的料浆悬浮体.在500～1 000℃的温度范围内,与没有涂层保护的基体相比,在涂层保护下基体的氧化程度至少可减轻85%.研究表明:随温度升高,涂层逐渐熔融,得到一层致密的保护层,涂层中依次出现Al2O3、TiO2、硅酸盐、钛铝、硅铝化合物等物相,使得涂层具有很好的高温流动性和稳定性,有效阻挡了氧气对基体的侵蚀,且涂层对基体的沾污甚微.涂层与基体的热膨胀系数(CTE)失配达到87%,涂层在使用后可以实现完全自剥落.
参考文献
| [1] | BOYER R R .An overview on the use of titanium in the aerospace industry[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1996,213(1-2):103-114. |
| [2] | Gorynin, IV .Titanium alloys for marine application[J].Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing,1999(2):112-116. |
| [3] | Xiaoli Wang;Yongqing Zhao;Hongliang Hou;Yaoqi Wang .Effect of hydrogen content on superplastic forming/diffusion bonding of TC21 alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2010(1):151-154. |
| [4] | WAND K L;FU M W;LU S Q et al.Study of the dynamic recrystallization of Ti-6.5 Al-3.5 Mo-1.5 Zr-0.3 Si alloy in β-forging process via finite element method modeling and microstructure characterization[J].Materials & Design,2011,32(03):1283-1291. |
| [5] | 刘素英,齐大衡,康新婷.904#陶瓷-玻璃涂层对高温下钛合金的保护作用[J].稀有金属材料与工程,1993(06):58-62. |
| [6] | Gurrappa I.;Gogia AK. .High performance coatings for titanium alloys to protect against oxidation[J].Surface & Coatings Technology,2001(2/3):216-221. |
| [7] | W. Zhou;Y.G. Zhao;W. Li;Q.D. Qin;B. Tian;S.W. Hu .Al-Si coating fused by Al + Si powders formed on Ti-6Al-4V alloy and its oxidation resistance[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):142-150. |
| [8] | Sarkar, S;Datta, S;Das, S;Basu, D .Oxidation protection of gamma-titanium aluminide using glass-ceramic coatings[J].Surface & Coatings Technology,2009(13):1797-1805. |
| [9] | 乔彦强,郭喜平,任家松.Ti-Nb-Si基超高温合金Si-Cr共渗涂层在1250℃的氧化行为[J].材料工程,2010(02):64-68,73. |
| [10] | Yongjun Xu;Zhongping Yao;Fangzhou Jia;Yunlong Wang;Zhaohua Jiang;Haitao Bu .Preparation of PEO ceramic coating on Ti alloy and its high temperature oxidation resistance[J].Current applied physics: the official journal of the Korean Physical Society,2010(2):698-702. |
| [11] | Moskalewicz, T;Smeacetto, F;Czyrska-Filemonowicz, A .Microstructure, properties and oxidation behavior of the glass-ceramic based coating on near-alpha titanium alloy[J].Surface & Coatings Technology,2009(16):2249-2253. |
| [12] | Moskalewicz, T.;Smeacetto, F.;Cempura, G.;Ajitdoss, L.C.;Salvo, M.;Czyrska-Filemonowicz, A. .Microstructure and properties characterisation of the double layered glass-ceramic coating on near-α titanium alloy[J].Surface & Coatings Technology,2010(21/22):3509-3516. |
| [13] | 杜陕文,张延生.钛及钛合金表面脆性α层的重腐蚀法测定[J].稀有金属,2004(01):277-280. |
| [14] | 于家斗;齐大蘅.钛合金的热保护涂层[J].稀有金属材料与工程,1985(01):44-54. |
| [15] | HARRIS R;KELLY E;LEEDS D H.Process 3rd international conference on chemical vapor deposition[M].Westerville,OH:American Ceramic Society,1972:183-192. |
| [16] | 梅雪莲 .钛合金表面低氧压熔结涂层制备及其性能分析[D].长春:吉林大学,2008. |
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