Deformation Processes at the Surface of a Nickel Alloy Subjected to Nanosecond Laser Pulses

The effects on the surface of a nickel superalloy that are caused by the action of pulsed radiation from an Nd:YAG laser with a wavelength in the ultraviolet range (0.355 μm) and a pulse duration of 10 ns are studied. The surface layer is found to rise in a subthreshold irradiation regime. Traces of...

Full description

Saved in:
Bibliographic Details
Published in:Russian metallurgy Metally 2021-10, Vol.2021 (10), p.1233-1237
Main Authors: Zheleznov, Yu. A., Malinskii, T. V., Mikolutskii, S. I., Rogalin, V. E., Filin, S. A., Khomich, Yu. V., Yamshchikov, V. A., Kaplunov, I. A., Ivanova, A. I.
Format: Article
Language:English
Subjects:
Advanced Materials and Technologies
Chemistry and Materials Science
Crystallography
Grain boundary sliding
High temperature
Laser beam welding
Lasers
Materials Science
Mechanical tests
Metallic Materials
Neodymium lasers
Nickel alloys
Nickel base alloys
Plastic deformation
Pulse duration
Pulsed radiation
Semiconductor lasers
Superalloys
Surface layers
YAG lasers
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects on the surface of a nickel superalloy that are caused by the action of pulsed radiation from an Nd:YAG laser with a wavelength in the ultraviolet range (0.355 μm) and a pulse duration of 10 ns are studied. The surface layer is found to rise in a subthreshold irradiation regime. Traces of high-temperature plastic deformation via grain-boundary sliding and crystallographic slip are detected in the spot zone. The joints of nickel alloy samples with preliminary laser treatment are subjected to diffusion welding and mechanical tests; as a result, a noticeable improvement in the weld quality as compared to untreated samples is shown.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029521100360