| 硼镧共渗对Ti-6Al-4V钛合金空蚀性能的影响 |
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| 引用本文： | 李海斌、张晓波、石林爽、张曼婷.硼镧共渗对Ti-6Al-4V钛合金空蚀性能的影响[J].福建工程学院学报,2021,0(4):360-364. |
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| 作者姓名： | 李海斌、张晓波、石林爽、张曼婷 |
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| 作者单位： | 淮北师范大学 |
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| 摘 要： | 采用固体渗剂包埋渗法对Ti-6Al-4V钛合金进行硼-稀土共渗处理，并利用超声振动空蚀机研究分析试样在去离子水中的空蚀性能。结果表明，硼-稀土共渗在Ti-6Al-4V合金表面获得均匀致密的表面渗层。表面渗层具有很高的显微硬度，与基体冶金结合，其主要由TiB2、TiB化合物层和B原子固溶于α-Ti的扩散层构成。稀土元素La的添加，提高渗硼效率，使试样表面渗层厚度增加，显微硬度显著提高，材料的抗空蚀性能得到显著改善。
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| 关 键 词： | Ti-6Al-4V 合金 渗硼 空蚀 稀土 |
Effect of La-boronizing on cavitation erosion of Ti-6Al-4V alloy |
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| LI Haibin,ZHANG Xiaobo,SHI Linshuang,ZHANG Manting.Effect of La-boronizing on cavitation erosion of Ti-6Al-4V alloy[J].Journal of Fujian University of Technology,2021,0(4):360-364. |
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| Authors: | LI Haibin ZHANG Xiaobo SHI Linshuang ZHANG Manting |
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| Affiliation: | School of Physics and Electronic Information, Huaibei Normal University |
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| Abstract: | Ti-6Al-4V alloy was treated by using pack rare earth-boronizing. The cavitation erosion resistance of the treated specimens was studied in deionized water by using ultrasonic vibration cavitation equipment. Results show that a uniform and dense surface layer was obtained on the surface of the treated Ti-6Al-4V alloy specimens. The surface layer shows high microhardness and good metallurgical bonding consisted of a compound layer (TiB2 and TiB phases) and a diffusion layer (α-Ti (B)). The rare earth element could improve boronizing efficiency, thus increasing thickness of the surface layer, surface microhardness and cavitation resistance of the treated Ti-6Al-4V alloy specimens. |
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| Keywords: | Ti-6Al-4V alloy boronizing cavitation erosion rare earth |
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