Application of Taguchi method and ANOVA analysis for optimization of process parameters and exothermic addition (CuO-Al) introduction in the core filler during self-shielded flux-cored arc welding

Trembach, Bohdan; Grin, Aleksandr; Турчанин, М. А.; Makarenko, Nataliia; Марков, Олег; Trembach, Illia

doi:10.1007/s00170-021-06869-y

Cited by 34 publications

(25 citation statements)

References 49 publications

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“…One of the promising methods for increasing energy efficiency (reducing energy consumption) and increasing the productivity of FCAW-S is the introduction of an exothermic addition into the core filler of a flux-cored wire electrode [45][46][47][48][49]. Recent studies of the author have shown the effectiveness of the desired copper content provision due to introduction of exothermic addition CuO -Al [48,50]. Copper transfers to deposited metal due to the reaction behavior (Eq.…”

Section: Researchmentioning

confidence: 99%

“…The coefficient wire filling (filling factor) of the flux-cored wire electrode is 0.34-0.35 [45,50]. Core filler compositions of experimental FCAW-S are shown in Table 4.…”

Section: Hardfacing Processmentioning

confidence: 99%

“…Summarizing the results discussion concerning the influence of exothermic additions introduction to the grain morphology of deposited metal we can conclude its positive influence. On the one hand the positive role of exothermic additive introduction can be explained by the cooling rate decrease due to the welding current decrease [50]. On the other hand -the formation of a large number of small non-metallic inclusions (NMI), which played the role of grain refiner/modifying agents.…”

Section: Dendritic Grain Size Of Deposited Metalmentioning

confidence: 99%

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Effect of Exothermic Addition (CuO - Al) on the Structure, Mechanical Properties and Abrasive Wear Resistance of the Deposited Metal During Self-Shielded Flux-Cored Arc Welding

Trembach¹,

Grin²,

Subbotinа³

et al. 2021

Tribol. Ind.

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The microstructure evolution, mechanical properties, and tribological properties of deposited metal Fe-C-Cr-Ti-B alloy by self-shielded flux-cored wire electrode (FCAW-S) with the introduction of exothermic addition and without it are investigated. Experimental studies showed that the introduction of CuO -Al exothermic addition in the composition of the wire core filler reduced the grain size of the deposited metal. Furthermore, X-ray diffraction analyses show that the boride layer contained FeB, Fe2B, and Ti(C, N) phases. Depth-sensing indentation was used to determine hard phase properties (hardness, Young's modulus and plasticity coefficient). It was shown that introduction of CuO -Al exothermic addition in the core filer increased the mechanical properties of deposited metal. The latter can be explained by the grain size decrease, as well as a change in the phase composition of the deposited metal due to additional copper alloying. This transformation is accompanied by an increase in hardness and in the Young's modulus. Tribological tests showed the effectiveness of introduction of the exothermic addition CuO -Al into the filler core for increasing the wear resistance under conditions of 3-body abrasive particle wear.

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Section: Researchmentioning

confidence: 99%

“…The coefficient wire filling (filling factor) of the flux-cored wire electrode is 0.34-0.35 [45,50]. Core filler compositions of experimental FCAW-S are shown in Table 4.…”

Section: Hardfacing Processmentioning

confidence: 99%

Section: Dendritic Grain Size Of Deposited Metalmentioning

confidence: 99%

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Effect of Exothermic Addition (CuO - Al) on the Structure, Mechanical Properties and Abrasive Wear Resistance of the Deposited Metal During Self-Shielded Flux-Cored Arc Welding

Trembach¹,

Grin²,

Subbotinа³

et al. 2021

Tribol. Ind.

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“…In this case, this steel is suitable to be welded. The welding heat input Q at per unit length of the weld bead was estimated in keeping with the subsequent equation [14],…”

Section: Calculating Some Characteristic Values For Gmawmentioning

confidence: 99%

Mechanical performance and microstructural characteristic of gas metal arc welded A606 weathering steel joints

Zhao

Bezgans

Vdonin

et al. 2021

Int J Adv Manuf Technol

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This investigation aims to make clear the relationships among geometric features, macrostructures, microstructures, and mechanical performances of the weld bead in the gas metal arc welding (GMAW) process for ASTM A606 type IV weathering steel. The results indicate that with the increase of welding heat input, the geometry of the top reinforcement and penetration increases proportionally until reaching the peak value, and then declines with the further increase of welding heat input; while the values of bottom reinforcement increase continuously with the increase of welding heat input. The average ultimate tensile strength (F), maximum displacement (L), and failure energy (E) of the welded joint produced by the moderate welding heat input are 10.27 kN, 1.88 mm, and 13.55 J, respectively, which are obviously larger than those obtained by the insufficient welding heat input (F: 8.33 kN, L: 1.20 mm, and E: 7.10 J). Although the mechanical properties of the welds achieved by the overlarge welding heat inputs present comparable levels (F: 9.73 kN, L: 1.86 mm, and E: 13.51 J), their standard deviation is much higher. Acicular ferrite, grain boundary ferrite, side plate ferrite, Widmanstätten ferrite, and pearlite are noticed in the fusion zone (FZ), while the coarse grain heat-affected zone (CGHAZ) is composed of upper and lower bainite, grain boundary ferrite, Widmanstӓtten ferrite, polygonal ferrite, and pearlite. As the welding heat input increases, the pre-austenite grain width in the FZ and CGHAZ decreases. The descending order of the microhardness distributed in the welded joints is fusion line, CGHAZ, FZ, fine grain heat-affected zone (FGHAZ), and base metal. In addition, the microhardness values of FZ and CGHAZ decline with the rise of the welding heat input. Nonetheless, no apparent links are found between the microhardness levels of the FGHAZ and welding heat input.

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“…Metal oxides [12][13][14] and nanooxides [15] are introduced into their composition to improve the performance properties of functional coatings. Oxides are also introduced into the composition of electrode materials for surfacing coatings [16,17]. Layered coatings with oxide layers allow to rationally combining the properties of these layers and the base, and are characterized by high wear resistance and corrosion resistance [18][19][20].…”

mentioning

confidence: 99%

Thermophysical Properties of Glass-Ceramic Coatings of PbO–ZnO–B$_2$O$_3$ System Doped with Al$_2$O$_3$, SiO$_2$, and BaO Oxides

Kovbasiuk¹,

Duriagina²,

Mierzwiński³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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The study of heat and electrophysical properties in the system 'stainless steel-glass-ceramic coating' is carried out. Insulating coatings based on the glass-ceramic material of the PbO-ZnO-B 2 O 3 system are synthesized on stainless steel substrates. The temperature dependences of the dielectric loss tangent and dielectric constant of the obtained functional coatings are investigated. The heat capacity, thermal diffusivity and thermal conductivity of the coatings are investigated using a laser flash analysis. These properties are then compared to ones of the substrates. By the method of differential thermal analysis, the optimal modes of heat treatment of glass-ceramic coatings are established. An optimal material with the best electrophysical properties is revealed. Possibilities of using dielectric coatings as functional layers for film heating elements are analysed.

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Application of Taguchi method and ANOVA analysis for optimization of process parameters and exothermic addition (CuO-Al) introduction in the core filler during self-shielded flux-cored arc welding

Cited by 34 publications

References 49 publications

Effect of Exothermic Addition (CuO - Al) on the Structure, Mechanical Properties and Abrasive Wear Resistance of the Deposited Metal During Self-Shielded Flux-Cored Arc Welding

Effect of Exothermic Addition (CuO - Al) on the Structure, Mechanical Properties and Abrasive Wear Resistance of the Deposited Metal During Self-Shielded Flux-Cored Arc Welding

Mechanical performance and microstructural characteristic of gas metal arc welded A606 weathering steel joints

Thermophysical Properties of Glass-Ceramic Coatings of PbO–ZnO–B$_2$O$_3$ System Doped with Al$_2$O$_3$, SiO$_2$, and BaO Oxides

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