| Ti3Al基合金表面两种Cr1-xAlxN（x=0．18，0．47）涂层的热腐蚀性能 | |
| Alternative Title | HOT CORROSION RESISTANCE OF Cr1-xAlxN COATINGS ON A Ti3Al BASED ALLOY IN DEPOSITED （Na2SO4-K2SO4） MOLTEN SALT AT 800℃ |
| 朱明; 李美栓; 周延春 | |
| 2009 | |
| Source Publication | 中国腐蚀与防护学报
 |
| ISSN | 1005-4537 |
| Volume | 000Issue:004Pages:306-311 |
| Abstract | 利用磁控反应溅射的方法在Ti3Al基合金表面制备了两种不同铝含量的Cr0.82Al0.18N与Cr0．53Al0．47N涂层，测试了这两种涂层在800℃（Na2SO4＋25mass％K2S04）熔融盐膜下的热腐蚀动力学，并采用X射线衍射仪和带能谱的扫描电镜分析腐蚀产物相组成以及微观结构。结果表明，两种涂层均可降低Ti3Al基合金的热腐蚀速率；涂层热腐蚀产物主要为具有保护性的Cr2O3和θ-Al2O3混合氧化膜，0-A1203的含量随着涂层中Al含量上升递增；和0-Al2O3相比，Cr2O3在熔融硫酸盐中的稳定性更好，Cr0．82Al0．18N涂层抗热腐蚀性能优于Cr0．53Al0.47N涂层。 |
| Other Abstract | Cr0.82Al0.18N and Cr0.53Al0.47N coatings were deposited on a Ti3Al based alloy by reactive magnetron sputtering method. Hot corrosion of these two coatings in 75 mass% Na2SO4＋25 mass% K2SO4 molten salt at 800℃ was performed in a Setsys 16/18 thermoanalyzer. The phase compositions of the corrosion products were identified by X-ray diffractometer （XRD）. Both the surface and cross-sectional morphologies of the samples were observed by a scanning electron microscope （SEM）. The results showed that both Cr0.82Al0.18N and Cr0.53Al0.47N can reduce the hot corrosion rate of the Ti3Al based alloy and their hot corrosion resistance decreases with increasing aluminum content; the main corrosion products of the coatings are Cr2O3 and 9-Al2O3 and the amount of 9-Al2O3 in the corrosion products is proportional to the Al content in the coating. The better hot corrosion resistance of Cr0.82Al0.18N coating can attribute to the high stability of Cr2O3 in the molten salt. |
| Keyword | Cr1-xAlxN涂层 热腐蚀 Ti3Al基合金 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:3730970 |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/157595 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 朱明,李美栓,周延春. Ti3Al基合金表面两种Cr1-xAlxN（x=0．18，0．47）涂层的热腐蚀性能[J]. 中国腐蚀与防护学报,2009,000(004):306-311. |
| APA | 朱明,李美栓,&周延春.(2009).Ti3Al基合金表面两种Cr1-xAlxN（x=0．18，0．47）涂层的热腐蚀性能.中国腐蚀与防护学报,000(004),306-311. |
| MLA | 朱明,et al."Ti3Al基合金表面两种Cr1-xAlxN（x=0．18，0．47）涂层的热腐蚀性能".中国腐蚀与防护学报 000.004(2009):306-311. |
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