Boron Steel: An Alternative for Costlier Nickel and Molybdenum Alloyed Steel for Transmission Gears

Verma, Anand Mohan; Gopinath, K.; Sarkar, B.

doi:10.24200/tjer.vol8iss1pp12-18

Cited by 8 publications

(4 citation statements)

References 9 publications

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“…Microalloying with boron amounts up to 30 ppm improves (about 2.5 times) the hardenability of constructional steel [1][2][3][4][5]. In other words, 30 ppm of boron can be equivalent to one percent of manganese (chromium, nickel) or half percent of molybdenum [6,7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Nitrogen and Nitride-Forming Elements on Properties of Boron-Treated Steel

Maznichevsky¹,

Goikhenberg

Sprikut³

2018

SSP

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Microalloying has received increased attention in recent years. The aims of the study were to identify and to examine the influence of nitrogen concentration in steel and small additions of nitride-forming elements on the hardenability of a boron-treated manganese-vanadium steel 40GF-VI. The study has shown that the increase in nitrogen concentration from 0.004% to 0.015% increases the hardenability of steel. It was found that a small amount of titanium (about 0.02%) in steel with low concentration of nitrogen (0.004%) is sufficient to bind it to nitrides, which makes it possible to save the most of boron in an active state (in a solid solution). A residual amount of titanium and aluminum in the range of 0.015-0.020% of each in steel with nitrogen concentration in the range of 0.010-0.015%, which is typical of an electric arc melting steel, is insufficient to bind all nitrogen. As a result, a part of nitrogen is spent on the formation of boron nitrides, which reduces the effect of boron on the hardenability of manganese-vanadium steel microalloyed with boron. Some methods of protecting boron in steel are briefly described. The study has established that grain refinement is observed with increasing nitrogen content in steel. Introduction of boron, in absence of titanium, does not change the size of the austenite grain in the entire range of the investigated temperatures. The optimum combination of strength, plastic and ductility characteristics in steel microalloyed with boron and additives of aluminum and titanium was obtained.

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Section: Introductionmentioning

confidence: 99%

Influence of Nitrogen and Nitride-Forming Elements on Properties of Boron-Treated Steel

Maznichevsky¹,

Goikhenberg

Sprikut³

2018

SSP

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“…Известно [1][2][3][4][5], что введение в сталь бора в количествах до 30 ppm значительно улучшает (примерно в 2,5 раза) прокаливаемость стали. По грубым оценкам, 30 ppm бора может быть эквивалентно проценту марганца (хрома, никеля) или половине процента молибдена [6,7].…”

Section: Introductionunclassified

Influence of nitrogen and nitride-forming elements on the properties of steel containing boron

Maznichevskiy¹,

Goykhenberg²,

Sprikut³

2017

MET

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The influence of concentration of nitrogen dissolved in the steel and the small additions of nitride-forming elements on the hardenability of boron-treated manganese-vanadium steel 40GF-VI was studied. It is shown that an increase of nitrogen concentration from 0.004 % to 0.015 % increases the hardenability of steel. It has been found that a small amount of titanium (about 0.02 %) in steel with a low content of nitrogen (0.004 %) is enough to bind the latter to nitrides, which allows to save most of the boron in the active state (in the solid solution). The residual amount of titanium and aluminum in the range of 0.015-0.020 % of each in steel with nitrogen content in the range of 0.010-0.015 %, which is typical for an electric arc melting steel, is insufficient to bind all nitrogen. As a result, a part of nitrogen is spent on the formation of boron nitrides, which reduces the effect of boron on hardenability of the manganese-vanadium steel micro-alloyed with boron. In conclusion, some methods of protecting boron in steel are briefly described.

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“…Boron steel has drawn more and more attention because of its advantages in environmental protection and good mechanical properties, which will have a promising application prospect. Boron microadditives allow us to save extremely scarce alloying elements such as nickel, chromium and manganese without reducing the quality of steel [1][2][3]. The important function of boron additives to heat treatable steels is to increase their hardness.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of Crystallizing Low-Alloy Boron Steel Melt Components Interaction

Tanklevskaya

Maznichevsky

2016

MSF

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Thermodynamic analysis of the phase equilibria in the Fe–Mn–Cr–Si–Al–Ti– Ni–V–Mo–B–S–P–C–N–O system at fixed concentrations of boron, manganese, chromium, silicon, aluminum, titanium, nickel, vanadium, molybdenum, sulfur, phosphorus, carbon and nitrogen was performed. Formation of nonmetallic phases upon cooling and crystallization of liquid metal solutions of various compositions was studied. It was established how aluminum and nitrogen content in the liquid metal solution affects the composition and amount of separated excess phases. Calculations demonstrated that boron nitride was not formed in the liquid metal and during crystallization.

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Boron Steel: An Alternative for Costlier Nickel and Molybdenum Alloyed Steel for Transmission Gears

Cited by 8 publications

References 9 publications

Influence of Nitrogen and Nitride-Forming Elements on Properties of Boron-Treated Steel

Influence of Nitrogen and Nitride-Forming Elements on Properties of Boron-Treated Steel

Influence of nitrogen and nitride-forming elements on the properties of steel containing boron

Thermodynamics of Crystallizing Low-Alloy Boron Steel Melt Components Interaction

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