唐勇,杜继红,李争显,黄春良,严鹏,杨涛.钽合金高温抗氧化复合涂层制备研究[J].表面技术,2013,42(6):59-62.
TANG Yong,DU Ji-hong,LI Zheng-xian,HUANG Chun-liang,YAN Peng,YANG Tao.Study on the Preparation of High Temperature Oxidation-resistent Composite Coating on Ta-based Alloy[J].Surface Technology,2013,42(6):59-62 |
| 钽合金高温抗氧化复合涂层制备研究 |
| Study on the Preparation of High Temperature Oxidation-resistent Composite Coating on Ta-based Alloy |
| 投稿时间：2013-08-13 修订日期：2013-09-17 |
| DOI： |
| 中文关键词: 钽合金 高温抗氧化 复合涂层 |
| 英文关键词:Ta-based alloy high temperature oxidation-resistent complex coating |
| 基金项目:陕西省稀有金属材料表面工程技术研究中心项目(20110819) |
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| Author | Institution |
| TANG Yong | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| DU Ji-hong | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| LI Zheng-xian | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| HUANG Chun-liang | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| YAN Peng | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
| YANG Tao | Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China |
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| 中文摘要: |
| 目的 制备钽合金在高温氧化环境下的防护涂层。 方法 采用料浆熔烧法,在 Ta-12W 合金表面依次制备底层和面层,通过两次熔烧处理,获得硅化物复合涂层。 分析涂层的形貌、元素含量及成分分布,测试涂层在 1800 ℃ 下的高温抗氧化性能和室温 ~ 1800 ℃ 热循环寿命, 并初步探讨涂层失效机理。结果 制备的复合涂层与基体之间通过扩散形成过渡层,达到冶金结合;涂层在 1800 ℃ 下可连续工作 9h,室温 ~ 1800 ℃ 热循环寿命为 151 次。 结论 在高温氧化环境中,复合涂层表面生成了一层玻璃状薄膜,有效阻止了外界氧向基体的进一步扩散,对基体形成了良好的保护。 |
| 英文摘要: |
| Objective To prepare protective coating for Ta-based alloy in the high-temperature oxidation environment . Methods Using slurry firing, the silicide composite coating was prepared on the surface of Ta-12W alloy. The bottom layer and the surface layer were prepared in proportion on the sample. Using two firing process, the silicide composite coating was prepared on the sample. The morphology, element content and composition distribution of the composite coating were investigated by SEM, EDS and XRD. The life of high-temperature oxidation-resistance at 1800℃ and the times of shock-testing from room temperature to 1800 ℃ of the coating were detected. The failure mechanism of the coating was discussed. Results The transitional layer between the coating and substrate is formed by diffusion, and the interface is metallurgical bond. The coating can be used at 1800 ℃ for 9 hours, and the limit time of shock-testing from room temperature to 1800 ℃ is 151 . Conclusion The glass layer on the surface of the coating, which is formed during the high-temperature oxidation environment, prevents oxygen from further diffusion and protects the material . |
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