Classification of steels according to their sensitivity to fracture using a synergetic model

Karnaukh, Sergii; Марков, Олег; Kukhar, Volodymyr; Shapoval, Alexander

doi:10.1007/s00170-022-08653-y

Cited by 34 publications

(10 citation statements)

References 27 publications

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“…The increase in titanium carbide content in these alloys, with constant cobalt content, contributes to an increase in hardness and wear resistance and a decrease in alloy strength. An increase in cobalt content shows the opposite trend [3,10].…”

Section: The Paper's Objectivementioning

confidence: 93%

“…After mixing, the charge was dried in a cup distiller following this regime: Carbidization of the charge was conducted on a universal setup for self-propagating high-temperature synthesis SHS-100. [2,7,10] The initial charge for synthesis was placed in the reactor in a graphite or stainless steel cup as a loose ll or in the form of pressed briquettes with dimensions of d = 80 mm, l = 100-120 mm. Briquetting was performed on a 63-ton hydraulic press D242.8 in special steel molds.…”

Section: The Paper's Objectivementioning

confidence: 99%

“…Tungsten-free hard alloys (TFHAs) address the issue of tungsten economy most effectively [10]. The demand for hard alloys is steadily increasing, along with the requirements for the operational properties of tungsten-free hard alloys.…”

Section: The Paper's Objectivementioning

confidence: 99%

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The principles of manufacturing complex carbide compounds based on titanium

Shapoval,

Kulynych,

Markov

et al. 2024

Preprint

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Composite hard alloys based on carbides and carbonitrides with a metallic binder are widely used in the metalworking industry and other industrial sectors, both domestically and internationally. This is evidenced by the abundance of scientific research primarily focused on the alloying of carbide and the metallic binder with various additions of refractory metals to improve their operational properties. It's worth noting that the complex carbides were manufactured using the SHS method, which allows for the production of high-quality complex refractory compounds with stable properties, essential for producing composite hard alloys with high operational characteristics. The research included studies on using cheap raw materials, i.e., titanium sponge waste, for producing complex (Ti-W, Ti-Cr) carbide compounds. In Ukraine, there is no technical solution for producing titanium carbide and complex titanium-containing carbide using titanium sponge waste, which is highly relevant. The work studied the impact of the composition of titanium sponge waste, its dispersion, and the amount of impurities on the technological regimes for manufacturing complex carbides and their properties

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Section: The Paper's Objectivementioning

confidence: 93%

Section: The Paper's Objectivementioning

confidence: 99%

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The principles of manufacturing complex carbide compounds based on titanium

Shapoval,

Kulynych,

Markov

et al. 2024

Preprint

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“…This forced the researchers to complicate the technological process, to carry it out in three stages, which affected the increase in the cost of steel [9]. Recent studies carried out in Ukraine, and abroad [5,8,10] have shown that a simultaneous increase in strength and resistance to brittle fracture of low-alloy and ordinary low-carbon steels is possible by microalloying: the introduction of microadditives (up to 0.15 %) of elements predominantly IV and V groups of the periodic system. The most common microalloying elements are niobium, vanadium, and titanium [10].…”

Section: Introductionmentioning

confidence: 99%

“…Recent studies carried out in Ukraine, and abroad [5,8,10] have shown that a simultaneous increase in strength and resistance to brittle fracture of low-alloy and ordinary low-carbon steels is possible by microalloying: the introduction of microadditives (up to 0.15 %) of elements predominantly IV and V groups of the periodic system. The most common microalloying elements are niobium, vanadium, and titanium [10]. These elements have a high affinity for nitrogen and carbon and easily form nitrides and carbides (or carbonnitrides).…”

Section: Introductionmentioning

confidence: 99%

Development of rational chemical composition of special steel with increased mechanical and performance characteristics

Sheyko,

Belokon,

Kripak

et al. 2023

JCTM

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To optimize the composition of steel in the work aims to identify the minimum required number of chemical elements and their content to avoid overheating and unnecessary economic costs. The solution is proposed in the form of microalloying, which leads to grinding of austenitic grains, and after phase transformation and ferritic grains, which improves the properties of steel. The established regularities allowed to quantitatively substantiate the chosen optimal chemical composition of steel, namely to establish the limit of variation of microalloying elementschromium, vanadium and titanium. It was found that the obtained steel in comparison with the prototype has higher values of impact strength, while maintaining high strength and fluidity. Thus, the combination of improved service and mechanical properties of steel helps to increase the service life of its products.

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