Formation of Hard Composite Layer on Tool Steel by Laser Alloying

Bonek, M.

doi:10.1515/amm-2016-0123

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…Considerable savings can be attained by employing the laser modification of surface layers due to relatively low substrate costs and sufficient surface properties of the tools produced with such material composition, accompanied by relatively high core tool ductility. An important aspect of tool manufacturing is also to optimise the substrate material according to technological aspects, which is essential considering a practical application of the material and technical solutions developed [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Tribological Characteristic of Tool Steel Surface Layer Alloyed Using Laser

Bonek

Tillová

2020

SSP

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The article presents the results of research on the impact of laser surface treatment on selected steel properties. The laser treatment consisted of remelting and alloying high speed steel using hard ceramic phase powders. A high-power diode laser was used in the experiment to examine the effect of parameters such as beam power and powder type on the structure and properties of the surface layer. A structural mechanism was observed consisting in obtaining, after laser processing, a super fine crystalline structure and a dendritic structure at the remelting zone. Structural changes have been found to be associated with improved properties such as hardness, microhardness and wear resistance. Steel treated with conventional heat treatment was used as a comparative material.

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Section: Introductionmentioning

confidence: 99%

Tribological Characteristic of Tool Steel Surface Layer Alloyed Using Laser

Bonek

Tillová

2020

SSP

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“…There is variety of techniques and materials for increasing hardness and creating protective surface against wear. Using welding techniques it is possible to apply ceramic particles in alloys [1][2][3] or modify the surface of ceramic by metals [4]. These samples show the wide possibility of applying the hardfacing processes in improving surface properties.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Winczek¹,

Gucwa²,

Mičian³

et al. 2019

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THE EVALUATION OF THE WEAR MECHANISM OF HIGH-CARBON HARDFACING LAYERSMaterials based on cast irons are often used for protection against wear. One of the methods of creating protective surface with cast iron structures is hardfacing. The application of hardfacing with self shielded flux cored wire with high carbon content is one of the economical ways often used to protect machinery parts exposed to both abrasion and erosion. The wear resistance of hardfacings depends on their chemical composition, structure obtained after hardfacing, parameters of depositing process and specific conditions of wear. As the base material in the investigation the steel grade S235JR was used. The wear behavior mechanism of hardfacings made with one type of self shielded flux cored wire and different process parameters were evaluated in this paper. Structures obtained in deposition process were different in hardness, amount of carbides and resistance to wear with two investigated impingement angles. The erosion tests showed that impingement angle 30° gives lower erosion rate than angle 60°.

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“…Laser processing includes quenching [6], surface hardening [7], surface melting [8][9][10], laser surface alloying (LSA) [11,12] and cladding [13,14]. The principle behind the LSA process contains the formation of metallurgically bonded coating by melting alloy powders such as tungsten, nickel, chromium and tungsten-cobalt-vanadiumchromium onto the substrate surface with a laser beam normal to the substrate [15].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Jeyaprakash¹,

Duraiselvam²,

Ramesh³

2018

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The wear behaviour of Cr 3 C 2 -25% NiCr laser alloyed nodular cast iron sample were analyzed using a pin-on-disc tribometer. The influence of sliding velocity, temperature and load on laser alloyed sample was focused and the microscopic images were used for metallurgical examination of the worn-out sites. Box-Behnken method was utilised to generate the mathematical model for the condition parameters. The Response Surface Methodology (RSM) based models are varied to analyse the process parameters interaction effects. Analysis of variance was used to analyse the developed model and the results showed that the laser alloyed sample leads to a minimum wear rate (0.6079×10 -3 to 1.8570×10 -3 mm 3 /m) and coefficient of friction (CoF) (0.43 to 0.53). From the test results, it was observed that the experimental results correlated well with the predicted results of the developed mathematical model.

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Formation of Hard Composite Layer on Tool Steel by Laser Alloying

Cited by 7 publications

References 14 publications

Tribological Characteristic of Tool Steel Surface Layer Alloyed Using Laser

Tribological Characteristic of Tool Steel Surface Layer Alloyed Using Laser

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

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