Study on theoretical bases of receiving composite alloy layers on surface of cast steel castings

Gawroński, J.; Szajnar, J.; Wróbel, P.

doi:10.1016/j.jmatprotec.2004.07.153

Cited by 19 publications

(15 citation statements)

References 3 publications

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“…Materials 2022, 15, x FOR PEER REVIEW 2 of 15 plied to the production of large steel or iron castings. In this case, the methods of surface impregnation of castings with alloying elements or the creation of surface composite layers with the technology of bimetallic layered castings are used [16][17][18][19]. However, the layer thicknesses of increased resistance to abrasion obtained by these methods do not exceed a few millimetres.…”

Section: Methodsmentioning

confidence: 99%

Corrosion Resistance of L120G13 Steel Castings Zone-Reinforced with Al2O3

Medyński

Chęcmanowski

2022

Materials

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The aim of the study was to determine the effect of zone reinforcement of cast steel L120G13 with Al2O3 macro-particles on the corrosion resistance of the composite obtained in this way. The obtained results allow us to conclude that strengthening of cast steel with corundum, the aim of which was to significantly increase the abrasive wear resistance, did not significantly deteriorate corrosion resistance. SEM tests show that a permanent diffusion layer interface is formed at the boundary between cast steel and corundum. In this area, simple manganese segregation and reverse iron and chromium segregation were found. These elements pass from the liquid alloy to the surface layer of the corundum particles, causing the aluminium and oxygen to be pushed deep into the corundum grains. Corrosion tests indicate comparable corrosion resistance of cast steel L120G13 and the composite L120G13 + Al2O3. Moreover, no intergranular corrosion was found in the matrix of the composite and no signs of pitting corrosion were found in the areas of the interface between the phases of the composite. This information is extremely important from the point of view of the material’s service life. Observations of breakthrough of both materials obtained during fracture after potentiodynamic corrosion tests, immediately after freezing in liquid nitrogen, indicate cracking with plastic features and increased resistance to dynamic forces of cast steel L120G13 and the composite L120G13 + Al2O3.

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Section: Methodsmentioning

confidence: 99%

Corrosion Resistance of L120G13 Steel Castings Zone-Reinforced with Al2O3

Medyński

Chęcmanowski

2022

Materials

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“…The improvement of the interfacial bond is a critical factor in the production of bimetallic bearings using a liquid-solid technique wherein the substrate should be considered carefully to achieve higher bond strength, durability and performance. For most liquid-solid bimetallic fabrication techniques, low carbon steel, stainless steel or copper alloys are the nominate materials used as solid substrates [1,9,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Development and Optimization of Tin/Flux Mixture for Direct Tinning and Interfacial Bonding in Aluminum/Steel Bimetallic Compound Casting

et al. 2020

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Interfacial bonding highly affects the quality of bimetallic bearing materials, which primarily depend upon the surface quality of a solid metal substrate in liquid–solid compound casting. In many cases, an intermediate thin metallic layer is deposited on the solid substrate before depositing the liquid metal, which improves the interfacial bonding of the opposing materials. The present work aims to develop and optimize the tinning process of a solid carbon steel substrate after incorporating flux constituents with the tin powder. Five ratios of tin-to-flux—i.e., 1:1, 1:5, 1:10, 1:15, and 1:20—were used for tinning process of carbon steel solid substrate. Furthermore, the effect of volume ratios of liquid Al-based bearing alloy to solid steel substrate were also varied—i.e., 5:1, 6.5:1 and 8.5:1—to optimize the microstructural and mechanical performance, which were evaluated by interfacial microstructural investigation, bonding area determination, hardness and interfacial strength measurements. It was found that a tin-to-flux ratio of 1:10 offered the optimum performance in AlSn12Si4Cu1/steel bimetallic materials, showing a homogenous and continuous interfacial layer structure, while tinned steels using other percentages showed discontinuous and thin layers, as in 1:5 and 1:15, respectively. Furthermore, bimetallic interfacial bonding area and hardness increased by increasing the volume ratio of liquid Al alloy to solid steel substrate. A complete interface bonding area was achieved by using the volume ratio of liquid Al alloy to solid steel substrate of ≥8.5.

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“…Layer casting technology was taken from the pertinent mining industry method of manufacture of different composite layers of surface based on granularity inserts from Fe-Cr-C alloy and placed in mold just before pouring molten metal into mold cavity. Obtained surface layers by this way working have a high hardness and metal-mineral wear resistance (Heijkoop and Sare, 1989;Gawronski et al, 2004;Baron et al, 2007;Klimpel, 2000;Brytan et al, 2010;Bonek and Dobrzański, 2006;Lisiecki and Klimpel, 2008;Dobrzanski et al, 2009;Labisz et al, 2010;Cholewa et al, 2010). Bi-metallic material is considered an advanced functional material in many fields because of its unique physical and mechanical properties that can be fabricated by bonding both similar and dissimilar materials.…”

Section: Introductionmentioning

confidence: 99%

New trends and advances in bi-metal casting technologies

Ramadan¹

2019

Int. j. adv. appl. sci.

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The technology of bi-metal casting is considered one of the promising technologies in the field of casting industry. The main applications of bimetal casting are dynamic loads and intensive abrasive wear. Understanding of the process and its dynamics are the main tool for successful bi-metal casting products. This review aims to focus on the past and present techniques of bi-metal casting in order to facilitate its production processing and improve its products performances. The advantages and limitations of liquid-solid and liquid-liquid bi-metal casting configurations are shown. New trends in bi-metal casting are classified into two categories; the first one depends on the production processing, such as continuous casting and electroslag heating processes while the second one depends on product applications, like corrosion resist, heat resist and bearing layered castings. In this review, the significance of factors affects the process of bi-metal casting to achieve high quality products is presented. Bi-metal casting interface is considered one of the most important factors that achieve a stronger bond between the pair of metals. The current review will handle the present and future status of the bi-metal casting, along with their applications in the manufacturing of certain metal products. The technical and economic environment, which is prompting the improvement of this technology will be clarified. Although new trends and developments of bi-metal casting reported, there are still many future challenges for developing bi-metal casting industry in order to increase bi-metal quality, its performance and decrease its production cost.

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Study on theoretical bases of receiving composite alloy layers on surface of cast steel castings

Cited by 19 publications

References 3 publications

Corrosion Resistance of L120G13 Steel Castings Zone-Reinforced with Al2O3

Corrosion Resistance of L120G13 Steel Castings Zone-Reinforced with Al2O3

Development and Optimization of Tin/Flux Mixture for Direct Tinning and Interfacial Bonding in Aluminum/Steel Bimetallic Compound Casting

New trends and advances in bi-metal casting technologies

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