磁场辅助TA15钛合金表面热浸铝镀层的组织性能

doi:10.13251/j.issn.0254-6051.2023.08.041

金属热处理 ›› 2023, Vol. 48 ›› Issue (8): 254-259.DOI: 10.13251/j.issn.0254-6051.2023.08.041

磁场辅助TA15钛合金表面热浸铝镀层的组织性能

李勇¹, 王秋林¹, 门正兴¹, 赵玉林², 张宏³

1.成都航空职业技术学院, 四川成都 610100;
2.电子科技大学物理学院, 四川成都 610054;
3.四川大学破坏力学与工程防灾减灾四川省重点实验室, 四川成都 610065

收稿日期:2023-03-01 修回日期:2023-06-09 出版日期:2023-08-25 发布日期:2023-10-10
作者简介:李勇(1986—),男,助教,硕士,主要研究方向为先进表面技术,E-mail: 250571951@qq.com
基金资助:
中国博士后基金 (2019M653396,2019SCU12056);四川省科技厅(23NSFSC1617);成都航空产业发展与文化建设研究中心(CAIACDRCXM2022-08)

Microstructure and properties of magnetic field assisted hot dip aluminized coatings on TA15 titanium alloy surface

Li Yong¹, Wang Qiulin¹, Men Zhengxing¹, Zhao Yulin², Zhang Hong³

1. Chengdu Aeronautic Polytechnic, Chengdu Sichuan 610100, China;
2. School of Physics, University of Electronic Science and Technology of China, Chengdu Sichuan 610054, China;
3. Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province, Sichuan University, Chengdu Sichuan 610065, China

Received:2023-03-01 Revised:2023-06-09 Online:2023-08-25 Published:2023-10-10

摘要/Abstract

摘要： 研究了TA15钛合金在交变电磁场作用下表面热浸铝镀层的组织与性能,并在800 ℃高温下进行热扩散处理。采用能谱仪、扫描电镜和X射线衍射仪分析镀层的形貌、微观结构以及微区元素分布,利用显微硬度计测试了镀层的显微硬度。结果表明,在热浸铝过程中施加电流强度在15 A和20 A的交变电磁场及热扩散处理后,镀层与基体结合良好,未发现明显裂纹,气孔和空洞的生成明显减少,同时缩短了浸镀时间,加快生产周期。当电流强度在15 A和20 A时,结合区硬度最高可达518.7 HV0.2,当电流强度增大到25 A时,电磁搅拌作用急剧增大,未能得到高质量的镀层。

关键词: 热浸铝, 电磁场, 电流强度, 热扩散, 组织与性能

Abstract: Microstructure and properties of hot dip aluminized coatings on the surface of TA15 titanium alloy under the action of alternating electromagnetic field were studied, and the thermal diffusion treatment was carried out at 800 ℃. The morphology, microstructure and element distribution of the coatings were analyzed by means of energy dispersive spectroscopy, scanning electron microscope and X-ray diffractometer. The microhardness of the coatings was tested by microhardness tester. The results show that after applying alternating electromagnetic field with current intensity of 15 A and 20 A during the process of hot dip aluminizing and thermal diffusion, the coatings bind well with the alloy substrate, no obvious crack is found, the formation of pores and cavities is significantly reduced, the dipping time is shortened, and thus the production cycle is accelerated. When the current intensity is 15 A and 20 A, the maximum hardness of the bonding zones can reach 518.7 HV0.2. When the current intensity increases to 25 A, the electromagnetic stirring effect sharply increases, and no high-quality coating can be obtained.

Key words: hot dip aluminizing, electromagnetic field, current intensity, thermal diffusion, microstructure and properties

中图分类号:

TG178

李勇, 王秋林, 门正兴, 赵玉林, 张宏. 磁场辅助TA15钛合金表面热浸铝镀层的组织性能[J]. 金属热处理, 2023, 48(8): 254-259.

Li Yong, Wang Qiulin, Men Zhengxing, Zhao Yulin, Zhang Hong. Microstructure and properties of magnetic field assisted hot dip aluminized coatings on TA15 titanium alloy surface[J]. Heat Treatment of Metals, 2023, 48(8): 254-259.

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磁场辅助TA15钛合金表面热浸铝镀层的组织性能

Microstructure and properties of magnetic field assisted hot dip aluminized coatings on TA15 titanium alloy surface

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