The influence of laser alloying on the structure and mechanical properties of AlMg5Si2Mn surface layers

Pakieła, Wojciech; Tański, Tomasz; Brytan, Z.; Labisz, K.

doi:10.1007/s00339-016-9834-z

Cited by 19 publications

(13 citation statements)

References 19 publications

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“…10). It was not observed in solidification molten pool the defects in the form of cracks, voids or craters which could adversely affect the strength properties of the obtained layer [18,19]. The transition zone between the substrate material and the obtained layer was less enriched in phases containing Cr and Ni.…”

Section: Resultsmentioning

confidence: 92%

“…The use of a fiber laser with rectangular spot gives possibilities to obtain surface layer that is characterized by a uniform distribution of introduced elements, short time of heat source interaction on the workpiece, and the possibility of introducing a very wide range of alloy elements [18,19]. During the laser surface treatment of the aluminum alloy a mixture of nickel and chromium powders was introduced.…”

Section: Introductionmentioning

confidence: 99%

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The structure and mechanical properties of AlMg5Si2Mn alloy after surface alloying by the use of fiber laser

et al. 2018

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Laser surface treatment is successfully applied to increase hardness as well as corrosion and wear resistance in light alloys such as aluminum or magnesium. The laser surface remelting also can be used to repair superficial cracks, voids or porosity caused by the mechanical impact, metallurgical process as well as the corrosive environment on the surface of the aluminum alloy. The purpose of this paper was to investigate the influence of a fiber laser surface treatment on the structure and properties of the EN AC AlMg5Si2Mn alloy. The goal of this investigation was to increase the hardness and improve tribological properties of the aluminum alloy surface as a result of the conducted laser surface treatment. During laser processing, the top surface of the aluminum alloy was enriched with Cr and Ni particles. The grain size of the applied particles was approximately about 60-130 m. The Cr-Ni powder has been introduced in the molten pool using vacuum feeder at a constant rate of 4.5 g/min. For surface remelting we used square laser beam at a size 3 × 3 mm and with the power of 3.0 kW. The linear laser scan rate of the beam was set at 0.5 m/min. Argon was used to protect the liquid metal alloy during surface treatment. Application of the laser treatment on aluminum alloy has enabled to obtain much harder as well as better wear resistant material compared to the untreated EN AC AlMg5Si2Mn.

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Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

The structure and mechanical properties of AlMg5Si2Mn alloy after surface alloying by the use of fiber laser

et al. 2018

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“…The resulting layers were characterized by a friction coefficient reaching from 2.55 (1.8 kW) to 1.92 (2.2 kW) times higher compared to the pure AlMg9 alloy. As a result, of the laser feeding a layer was obtained with multi-phase tungsten carbides WC/W 2 C and phase Al 4 …”

Section: Discussionmentioning

confidence: 99%

“…The dynamic expansion of the industrial economy makes it necessary to find much better and advanced engineering materials able to meet the new demands [1][2][3][4]. Research is being designed and conducted it improve functional and mechanical properties of all materials group for industrial use.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Laser Surface Treatment on Structure and Mechanical Properties Aluminium Alloy ENAC-AlMg9

Pakieła¹,

Dobrzański²,

Labisz³

et al. 2016

Archives of Metallurgy and Materials

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In this work, the influence of a high power diode laser surface treatment on the structure and properties of aluminium alloy has been determined. The aim of this study was to improve the mechanical and tribological properties of the surface layer of the aluminium alloy by simultaneously melting and feeding tungsten carbide particles into the molten pool. During the process was used high-power diode laser HPDL. In order to remelt the aluminium alloy surface the HPDL laser of 1.8, 2.0 and 2.2 kW laser beam power has been used. The linear laser scan rate of the beam was set 0.5 cm/s. In order to protect the liquid metal during laser treatment was used argon. As a base material was used aluminium alloy ENAC-AlMg9. To improve the surface mechanical and wear properties of the applied aluminium alloy was used biphasic tungsten carbide WC/W2C. The size of alloying powder was in the range 110-210 µm. The ceramic powder was introduced in the remelting zone by a gravity feeder at a constant rate of 8 g/m.

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“…For this reason, within a wide range of applications, especially in the transport industry, they are being exploited commonly [6][7][8][9]. However, aluminium alloys exhibit weak tribological characteristics which lead to reduction of their use in many other applications [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Aluminium surface treatment with ceramic phases using diode laser

et al. 2016

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Ceramic particles powder feeding into surface layer of engineering metal alloy is a well-known and widely used technique. New approach into the topic is to obtain finely distributed nano-sized particles involved in the aluminium matrix using the traditional laser technology. In this paper are presented results of microstructure investigation of cast aluminium-silicon-copper alloys surface layer after heat treatment and alloying with ceramic carbides of WC and ZrO 2 using high-power diode laser. The surface layer was specially prepared for the reason of reducing the reflectivity, which is the main problem in the up-to-date metal matrix composites production. With scanning electron microscopy, it was possible to determine the deformation process and distribution of WC and ZrO 2 ceramic powder phase. Structure of the surface after laser treatment changes, revealing three zones-remelting zone, heat-affected zone and transition zone placed over the Al substrate. The structural changes of ceramic powder, its distribution and morphology as well as microstructure of the matrix material influence on functional properties, especially wear resistance and hardness of the achieved layer, were investigated.

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The influence of laser alloying on the structure and mechanical properties of AlMg5Si2Mn surface layers

Cited by 19 publications

References 19 publications

The structure and mechanical properties of AlMg5Si2Mn alloy after surface alloying by the use of fiber laser

The structure and mechanical properties of AlMg5Si2Mn alloy after surface alloying by the use of fiber laser

The Effect of Laser Surface Treatment on Structure and Mechanical Properties Aluminium Alloy ENAC-AlMg9

Aluminium surface treatment with ceramic phases using diode laser

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