Excimer laser surface treatment of aluminum alloy in nitrogen

Sicard, E.; Boulmer‐Leborgne, C.; Andreazza‐Vignolle, C.; Frainais, M.

doi:10.1007/s003390100742

Cited by 20 publications

(3 citation statements)

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“…Sicard et al 494 reported enhancement of mechanical and chemical properties of aluminium alloys (AlSi7Mg0·3) by excimer laser assisted nitriding treatment. The special nitriding treatment requires an excimer laser to irradiate the sample placed inside the cell with 1 bar nitrogen pressure allowing expansion of the vapour plasma, dissociation/ionisation of nitrogen by laser generated shock wave and subsequent penetration (adsorption and diffusion) of nitrogen from plasma up to some depth.…”

Section: Laser Surface Engineeringmentioning

confidence: 99%

Laser material processing

Majumdar

Manna

2011

International Materials Reviews

247

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Light amplification by stimulated emission of radiation (laser) is a coherent and monochromatic source of electromagnetic radiation that can propagate in a straight line with negligible divergence. As a result, laser finds diverse applications ranging from mere mundane to most sophisticated uses either for totally commercial or purely scientific purposes, and from life saving to life threatening causes. High power lasers can produce intense heating and perform various manufacturing operations or material processing. The present contribution provides an overview of the application of high power laser only for material processing in engineering applications, and intentionally excludes the scope of application of laser in metrology, biomedical technology, spectroscopy, etc. The manufacturing processes covered have been broadly divided into four major categories, namely, laser assisted forming, joining, machining and surface engineering. Besides discussing the scope and principle of these processes, each section enumerates a detailed update of literature, scientific issues and technological innovations. At the beginning, a brief introduction to different types of lasers and their general applications, fundamentals of lasermatter interaction and classification of laser material processing has been provided. The entire discussion primarily focuses on correlating the properties with processing parameters and microstructure and composition of the material.

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Section: Laser Surface Engineeringmentioning

confidence: 99%

Laser material processing

Majumdar

Manna

2011

International Materials Reviews

247

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“…Besides laser processing, another effective tool of high speed thermal treatment of aluminium alloys' surface is high intensity pulsed electron beams. [23][24][25][26][27][28][29][30][31] The aims of this work are to analyse the regularities of structure modification of Al-19?4Si alloy by high intensity pulsed electron beam, and to identify the mechanisms responsible for Al-19?4Si alloy failure subjected to multicycle fatigue tests.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Al–19·4Si alloy surface structure after electron beam treatment and high cycle fatigue

Ivanov

Алсараева

Gromov

et al. 2015

Materials Science and Technology

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Processing of Al–19·4Si alloy by high intensive electron beam has been carried out, and multiple increase in fatigue life of the material has been revealed. Investigations of structure and surface modified layer destruction of Al–19·4Si alloy subjected to high cycle fatigue tests to fracture have been carried out by methods of scanning electron microscopy. The factors responsible for the increase in fatigue life of Al–19·4Si alloy have been revealed and analysed.

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“…13,14,[18][19][20] Some researchers have tried to form aluminium nitride via liquid phase surface engineering of aluminium using laser beam. 15,[21][22][23][24][25][26] Sicard et al 24 obtained thin nitride layers on aluminium based substrate by liquid phase laser nitriding. Carpene et al 25 studied laser nitriding of pure iron and aluminium in nitrogen atmosphere using a pulsed nanosecond Excimer laser.…”

Section: Introductionmentioning

confidence: 99%

Liquid phase surface nitriding of aluminium using TIG process

Sohi

Ansari

Ghazizadeh³

et al. 2015

Surface Engineering

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Liquid phase surface nitriding of AA5052 aluminium was performed using the heat of a TIG (tungsten inert gas) torch in a gas shielding which was a mixture of argon and nitrogen. The feasibility of obtaining nitride compounds at various TIG processing parameters and nitrogen contents in the shielding gas were studied. The presence of AlN phase was proved by X-ray diffraction analysis. Scanning electron microscopy with EDS analyser was carried out to study the morphology and chemical composition of the nitride phase. The microhardness test was also performed on cross sections of treated layers. This measurement demonstrated that the surface hardness of the untreated aluminium was increased from 52 HV for the untreated aluminium alloy to as high as 1411 HV for the nitrided sample. It was also noticed that liquid phase surface nitriding reduced the wear rate to less than quarter of that of the untreated substrate.

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Excimer laser surface treatment of aluminum alloy in nitrogen

Cited by 20 publications

References 0 publications

Laser material processing

Laser material processing

Evolution of Al–19·4Si alloy surface structure after electron beam treatment and high cycle fatigue

Liquid phase surface nitriding of aluminium using TIG process

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