| 钼基体表面二硅化钼涂层的制备及其高温抗氧化性能 |
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| 引用本文： | 朱路,陈鹏,蔡子明,冯培忠,康学勤,Farid AKHTAR,王晓虹. 钼基体表面二硅化钼涂层的制备及其高温抗氧化性能[J]. 中国有色金属学会会刊, 2022, 32(3): 935-946. DOI: 10.1016/S1003-6326(22)65844-8 |
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| 作者姓名： | 朱路 陈鹏 蔡子明 冯培忠 康学勤 Farid AKHTAR 王晓虹 |
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| 摘 要： | 以工业废弃硅化钼棒为原料,采用浆料涂刷法在钼表面制备MoSi2基抗氧化涂层.研究涂层的显微组织、相组成及在1500℃的高温氧化行为.结果表明,以废弃硅化钼棒和纯MoSi2粉末为原料制备的涂层和基体之间形成明显的连接层.纯MoSi2制备的涂层(PM)在烧结后出现少量裂纹,而以废弃硅钼棒为原料制备的涂层(SM)在烧结后没有...
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| 关 键 词： | 再利用 废弃硅化钼棒 浆料涂刷 抗氧化性能 钼基体 |
| 收稿时间： | 2021-03-01 |
Fabrication of MoSi2 coatings on molybdenum and its high-temperature anti-oxidation properties |
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| Affiliation: | 1. School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China;2. School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China;3. Division of Materials Science, Luleå University of Technology, Luleå 97187, Sweden |
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| Abstract: | Industrial spent MoSi2-based materials were used to fabricate oxidation-resistant coatings on molybdenum via slurry painting in air. The microstructure, phase constituent and high-temperature oxidation behaviors of the coatings at 1500 °C were explored. The results show that the bonding layer is generated in the coatings after sintering, which strengthens the metallurgical combination between the coating and the substrate because of the formation of diffusion layers. Rare cracks appear in the coating using pure MoSi2 (PM coating) while the coating using spent MoSi2 (SM coating) is free of cracks due to decreased thermal expansion mismatch. After oxidation, the oxide scale of PM coating possesses large-sized pores while a relatively dense oxide scale is acquired by SM coating. Compared with PM coating, thinner glassy oxide scale with lower mass gain is obtained by SM coating, exhibiting better anti-oxidation properties at 1500 °C. |
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| Keywords: | recycling slurry painting anti-oxidation properties molybdenum substrate |
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