The Effect of Type of Welding Sequence During Hardfacing Chromium Cast Iron for Erosion Resistance

Gucwa, Marek; Bęczkowski, Robert; Winczek, Jerzy; Wyleciał, T.

doi:10.1515/afe-2017-0089

Cited by 10 publications

(5 citation statements)

References 14 publications

(12 reference statements)

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“…Macrostructure analysis, hardness test, and a tribological test by the method "ball on flat" was performed on the hardfacing weld. [10,11,12,14].…”

Section: Experiments Methodologymentioning

confidence: 99%

Archives of Foundry Engineering

Šutka,

Koňar,

Moravec

et al. 2020

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The paper deals with the possibility of the renovation of permanent steel molds for casting using electric arc welding technology. When casting liquid metal into permanent steel molds, there is chemical-thermo-mechanical wear of the surface of the mold cavity and the inlet system, which causes a deterioration of the surface quality and dimensional accuracy of the casting. For this reason, it is necessary to renovate the steel mold after a certain casting interval -mold life. In this case, the technology of manual electric arc welding with a coated electrode was used for the renovation. The welding renovation aims to increase the service life of the mold using carbide hardfacing welds, which after welding achieve high mechanical properties of the renovated mold parts. Two types of hardfacing coated electrodes were used for welding, namely the OK Weartrode 55HD electrode and the OK Weartrode 50T electrode. Macroscopic analysis, tribological tests as well as the measurement of the hardness of the welded layers were performed to evaluate the quality and the friction coefficients of the additional materials used. The properties of hardfacing welds were compared with the properties of the basic material of the high-alloy steel mold. The main advantage is in addition to increasing the durability and longevity of the mold, also reducing the cost of mold renovation compared to other renovation technologies.

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“…Macrostructure analysis, hardness test, and a tribological test by the method "ball on flat" was performed on the hardfacing weld. [10,11,12,14].…”

Section: Experiments Methodologymentioning

confidence: 99%

Archives of Foundry Engineering

Šutka,

Koňar,

Moravec

et al. 2020

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“…An example of such an element is titanium, which when added in the laser alloying of a ductile cast iron surface causes the formation of high-hardness titanium carbides in the structure of the surface layer, which has a beneficial effect on the wear resistance of the surface. Research in the field of laser alloying of ductile cast irons with titanium has shown that with the appropriate selection of process parameters, it is possible to produce homogeneous surface layers and control their structure and properties, including the fraction, size and morphology of titanium carbides [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…Titanium, besides high affinity to carbon, also has a high affinity to nitrogen and can form titanium nitrides and carbonitrides, which, like carbides, exhibit high hardness and can reinforce the composite structure for high wear resistance [25,26]. Many studies on titanium surface nitriding have been conducted, and the results are available in the literature [27,28], while only a few studies have been conducted on ductile cast iron surface alloying with titanium and nitrogen [29].…”

Section: Introductionmentioning

confidence: 99%

The Laser Alloying Process of Ductile Cast Iron Surface with Titanium Powder in Nitrogen Atmosphere

et al. 2022

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The article presents the results of the laser alloying process of a ductile cast iron EN-GJS 350-22 surface with titanium powder in nitrogen atmosphere. The aim of this research was to test the influence of nitrogen atmosphere on the structure and properties of the ductile cast iron surface layer produced by a laser alloying process with titanium. The laser alloying process was conducted using a Rofin Sinar DL020 2 kW high-power diode laser (HPDDL) with rectangular focus and uniform power density distribution in the focus axis. The tests of the produced surface layers included macrostructure and microstructure observations, X-ray diffraction (XRD) analysis, energy-dispersive spectroscopy (EDS) on scanning electron microscope (SEM) and transmission electron microscope (TEM), Vickers hardness and solid particle erosion according to ASTM G76-04 standard. As a result of the laser alloying process in nitrogen atmosphere with titanium powder, the in situ metal matrix composite structure reinforced by TiCN particles was formed. The laser alloying process of ductile cast iron caused the increased hardness and erosion resistance of the surface.

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“…Most of the hardfacing techniques are based on the welding processes [5] and high carbon and chromium materials. Thank to their good wear resistance and low cost, iron-based hardfacing alloys are frequently employed in industry to extend the service life of components subjected to abrasive, erosive or metal to metal wear conditions, such as rocking pulverizing, crushing to applications and transport systems [6][7][8][9][10][11][12][13]. One of the interesting hardfacing techniques is self shielding arc welding with cored wire.…”

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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The Effect of Type of Welding Sequence During Hardfacing Chromium Cast Iron for Erosion Resistance

Cited by 10 publications

References 14 publications

Archives of Foundry Engineering

Archives of Foundry Engineering

The Laser Alloying Process of Ductile Cast Iron Surface with Titanium Powder in Nitrogen Atmosphere

Archives of Metallurgy and Materials

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