Analysis of Defects at Laser Welding of Heat-Resistant Alloy KhN45VMTYuBR

Abstract:

The article presents the results of the impact of laser welding parameters on defect occurrence in the welded seam of the Ni-based heat-resistant alloy Kh45VMTYuBR applied for the manufacture of gas-turbine engines. On the basis of the research the authors conduct the analysis of dimensions as well as the number of pores and micro-cracks in the welded seam. The paper provides the recommendations on the selection of the laser welding mode for the heat-resistant alloy to reduce defect occurrence in a welding seam.

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 108-114
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.108
• Online since: August 2021
• Authors: Dmitry A. Baranov*, Anatoly A. Parkin, Sergey S. Zhatkin
• Keywords: Alloy KhN45VMTYuBR, Laser Welding, Metal Crystallyzation, Micro-Cracks, Pores, Steam Passage, Welding Seam

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