Using optical diagnostics to determine the melt temperature field in layer-by-layer laser alloying of metal powder
- 作者: Zavalov Y.1, Dubrov A.1, Mirzade F.1, Dubrovin N.1, Makarova E.1, Dubrov V.1
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隶属关系:
- Institute of Laser and Information Technologies
- 期: 卷 43, 编号 7 (2017)
- 页面: 627-630
- 栏目: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/205302
- DOI: https://doi.org/10.1134/S1063785017070136
- ID: 205302
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详细
The results of application of optical diagnostics in the estimation of the temperature field at the melt surface in layer-by-layer laser alloying of metal powder are presented. It is demonstrated that surface concavity induced by the thermocapillary effect upon nonuniform heating may distort pyrometry data considerably. The use of external illumination provides an opportunity to determine the shape of the melt surface. The obtained minimum estimate of the temperature gradient in the metal region affected by laser radiation is 2.8 × 104 K/cm.
作者简介
Yu. Zavalov
Institute of Laser and Information Technologies
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700
A. Dubrov
Institute of Laser and Information Technologies
编辑信件的主要联系方式.
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700
F. Mirzade
Institute of Laser and Information Technologies
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700
N. Dubrovin
Institute of Laser and Information Technologies
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700
E. Makarova
Institute of Laser and Information Technologies
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700
V. Dubrov
Institute of Laser and Information Technologies
Email: dubrov.av@mail.ru
俄罗斯联邦, Shatura, Moscow oblast, 140700