Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy

The surface coating properties of turbine blades are highly dependent on the material’s surface roughness, and the femtosecond laser-induced micro-structure can provide a wide range of roughness with periodicity. However, precise control of femtosecond laser-induced micro-structure is difficult. In...

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Main Authors: Shangyu Liu, Zhen Zhang, Zenan Yang, Chenchong Wang
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/17/8464
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author Shangyu Liu
Zhen Zhang
Zenan Yang
Chenchong Wang
author_facet Shangyu Liu
Zhen Zhang
Zenan Yang
Chenchong Wang
author_sort Shangyu Liu
collection DOAJ
description The surface coating properties of turbine blades are highly dependent on the material’s surface roughness, and the femtosecond laser-induced micro-structure can provide a wide range of roughness with periodicity. However, precise control of femtosecond laser-induced micro-structure is difficult. In this paper, we extend the application of the two-temperature model and combine it with experiments to accurately reveal the evolution law of micro-structure depth at different single pulse energies, as well as the influence of two processing parameters on micro-structure, namely, defocusing amount and scanning speed. The findings of this study provide reliable theoretical guidance for fast and accurate control of material surface roughness and open new possibilities for coating properties.
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spelling doaj.art-db2e1065398d43248ca4598a2392dd262023-11-23T12:40:00ZengMDPI AGApplied Sciences2076-34172022-08-011217846410.3390/app12178464Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based AlloyShangyu Liu0Zhen Zhang1Zenan Yang2Chenchong Wang3State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaScience and Technology on Advanced High-Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, ChinaThe surface coating properties of turbine blades are highly dependent on the material’s surface roughness, and the femtosecond laser-induced micro-structure can provide a wide range of roughness with periodicity. However, precise control of femtosecond laser-induced micro-structure is difficult. In this paper, we extend the application of the two-temperature model and combine it with experiments to accurately reveal the evolution law of micro-structure depth at different single pulse energies, as well as the influence of two processing parameters on micro-structure, namely, defocusing amount and scanning speed. The findings of this study provide reliable theoretical guidance for fast and accurate control of material surface roughness and open new possibilities for coating properties.https://www.mdpi.com/2076-3417/12/17/8464nickel-based alloyfemtosecond lasersurface micro-structuretwo-temperature model
spellingShingle Shangyu Liu
Zhen Zhang
Zenan Yang
Chenchong Wang
Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
Applied Sciences
nickel-based alloy
femtosecond laser
surface micro-structure
two-temperature model
title Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
title_full Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
title_fullStr Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
title_full_unstemmed Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
title_short Femtosecond Laser-Induced Evolution of Surface Micro-Structure in Depth Direction of Nickel-Based Alloy
title_sort femtosecond laser induced evolution of surface micro structure in depth direction of nickel based alloy
topic nickel-based alloy
femtosecond laser
surface micro-structure
two-temperature model
url https://www.mdpi.com/2076-3417/12/17/8464
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AT zhenzhang femtosecondlaserinducedevolutionofsurfacemicrostructureindepthdirectionofnickelbasedalloy
AT zenanyang femtosecondlaserinducedevolutionofsurfacemicrostructureindepthdirectionofnickelbasedalloy
AT chenchongwang femtosecondlaserinducedevolutionofsurfacemicrostructureindepthdirectionofnickelbasedalloy