Mathematical model of the mechanical properties of Ti-alloyed hypoeutectic cast iron for mixer blades

Kharchenko, Serhii; Barsuk, Andriy; Karimova, Nurlana; Nanka, Alexander; Pelypenko, Yevhen; Shevtsov, Vadim; Morozov, Ivan; Морозов, В. П.

doi:10.21303/2461-4262.2021.001830

Cited by 9 publications

(10 citation statements)

References 19 publications

(33 reference statements)

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“…Statistical analysis of the accuracy according to the procedures given in [78,79] confirms the high accuracy of equation (5.17) -when rounded to integers, the S values calculated from (5.17) coincide with the S values given in Table 5.6.…”

supporting

confidence: 56%

The technology of scientific and practical communications: InGraph case study

Domin

Lunin

Domina³

et al. 2022

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supporting

confidence: 56%

The technology of scientific and practical communications: InGraph case study

Domin

Lunin

Domina³

et al. 2022

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“…Therefore, the theoretical-analytical approach to the study is justified. This study was a continuation of the study, the results of which are described in [13]. As initial data for determining the wear of cast iron, determined by the value of the wear coefficient (Kwr, %) in the absence of titanium, the data given in [14] were used, supplemented by the calculation of the position of the eutectic point on the Fe-C state diagram (carbon equivalent):…”

Section: Methodsmentioning

confidence: 99%

“…These data are presented in Table 1. The mathematical model on which the numerical calculations of Kwr were carried out has the form [13]:…”

Section: Methodsmentioning

confidence: 99%

Optimization of the composition of cast iron for cast parts operating under abrasive friction, according to the criterion of maximum wear resistance

Barsuk

2022

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The object of research: Titanium-alloyed hypoeutectic iron for mixer blades operating under abrasive friction conditions. Investigated problem: selection of the optimal titanium content in the alloy according to the criterion of the maximum wear resistance coefficient. The main scientific results: the content of titanium in cast iron was determined, which provides the maximum wear resistance coefficient with various compositions of the base alloy. It has been established that with the same titanium content, the highest value of the wear resistance coefficient depends on the carbon content and the position of the eutectic point on the Fe-C state diagram. In the studied range, the highest values of the wear resistance coefficient correspond to the average range of variation of these factors. This allows to say that the effect of carbon content and the position of the eutectic point doubly affect wear resistance at the same titanium content, and there is a range of titanium content in which the effect of these factors on the wear resistance value becomes the same. The area of practical use of the results of the study: the results obtained can be used by designers of industrial enterprises choosing materials for the manufacture of machine parts subject to intense friction due to operating conditions. The wear caused by this friction leads to the failure of the blades, so the designer's task is to choose the one that maximizes the durability of the blades. Innovative technological product: wear-resistant hypoeutectic cast iron alloyed with titanium for cast parts operating in conditions of intense abrasive friction The scope of the technological innovative product: mixing plants of various types, mainly used in road construction, construction and agriculture.

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“…-gray with lamellar graphite [6][7][8][9]; -aluminum [10,11]; -special wear-resistant [12]. This approach is promising, but requires the use of a minimum number of influencing factors to build an adequate mathematical model.…”

Section: Introductionmentioning

confidence: 99%

Revealing the significance of the influence of vanadium on the mechanical properties of cast iron for castings for machine-building purpose

Frolova

Barsuk²,

Nikolaiev³

2022

TAPR

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The object of study in this work is cast iron with lamellar graphite, modified with two types of modifiers – FeSi75 and FeSi40V7. In this work, the influence of vanadium on the mechanical properties of cast iron used for castings for engineering purposes was determined. The existing problem lies in the fact that ignorance of the influence of the alloying element on the mechanical properties of the alloy does not allow determining its consumption rates during the melting process. This can lead to unnecessary costs for materials for melting and casting, and not be justified in terms of the expected improvement in properties. To determine the effect of vanadium on properties, three indicators of the quality of cast iron are considered: tensile strength, stiffness, and a generalized quality index for mechanical properties. A decision is proposed on the procedure for checking the significance of the influence of vanadium within the considered range of variation V=0.04–0.078 % on these indicators. It has been established that the introduction of vanadium into cast iron as part of the FeSi40V7 modifier leads to a decrease in the tensile strength by 4 %, but to an increase in rigidity by 2 %. A significant influence of vanadium with a probability of 95 % was also established with respect to the generalized quality indicator for mechanical properties – the introduction of vanadium contributes to a drop in this indicator by about 5 %. As a result, it was concluded that the use of vanadium in the composition of FeSi40V7 within the final content in cast iron at the level of 0.04–0.078 % can be expedient only if it is necessary to increase the hardness of cast iron due to the promotion of carbide formation during alloy crystallization. The presented study will be useful for machine-building enterprises that have foundries in their structure, where cast iron is smelted for the manufacture of castings.

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Mathematical model of the mechanical properties of Ti-alloyed hypoeutectic cast iron for mixer blades

Cited by 9 publications

References 19 publications

The technology of scientific and practical communications: InGraph case study

The technology of scientific and practical communications: InGraph case study

Optimization of the composition of cast iron for cast parts operating under abrasive friction, according to the criterion of maximum wear resistance

Revealing the significance of the influence of vanadium on the mechanical properties of cast iron for castings for machine-building purpose

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