The effect of manganese content on mechanical properties of high titanium microalloyed steels

Li, Xiaolin; Li, Fēi; Chen, Yang; Xiao, Baoliang; Wang, Xuemin

doi:10.1016/j.msea.2016.09.070

Cited by 14 publications

(7 citation statements)

References 25 publications

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“…The tensile strength of S-3Mn is nearly 45 % higher than the unalloyed S. It was known that the addition of Mn increases the strength of the steel [23]. Also, precipitates such as MnC showed a grain refinement effect and contributed to an increase in tensile strength [8]. Uygur reported that hardness and tensile strength values can increase due to the effect of the solid solution formed by Mn in the microstructure [24].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…Manganese (Mn) is one of the alloying elements widely used for steel. Previous studies have shown that adding manganese improves the mechanical properties of steel [8,9]. Although the manganese ratio was restricted below 1.5% for commercial applications, the addition of manganese above this ratio had a positive effect on mechanical properties [10].…”

Section: Introductionmentioning

confidence: 98%

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Effect of TiC, TiN, and TiCN on microstructural, mechanical and tribological properties of PM steels

2021

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Developments in sintering of powder mixtures contributed growth of steel production via powder metallurgy. This study aims to improve the mechanical and tribological properties of carbon steels produced via powder metallurgy. For this purpose, P/M carbon steel was alloyed with 3 % Manganese. Then, this alloyed steel was reinforced with particles such as titanium carbide (TiC), titanium nitride (TiN) and titanium carbonitride (TiCN) in different proportions (0.5 and 1 %) and combinations. The effect of these additives on the mechanical properties of PM steels was determined by conducting tensile and hardness tests. Wear tests were performed to understand the tribological properties of samples. Also, microstructural properties, fracture surfaces, and worn surfaces of samples were examined using a Scanning Electron Microscope. Results show that the hardness and tensile strength of carbon steel increased by nearly 158 % and 62 % respectively, while the wear resistance improved by 4 times with the addition of 3 % Mn and 0.5 % TiCN.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Effect of TiC, TiN, and TiCN on microstructural, mechanical and tribological properties of PM steels

2021

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“…Nota-se ainda que o diagrama TRC do aço B está deslocado para baixo em relação ao do aço A, ou seja, as temperaturas de início e final de decomposição da austenita são menores. Mais uma vez, deve-se destacar que os elementos Nb, C e Mn retardam a decomposição da austenita [4,5,[13][14][15][16]. Neste contexto, é notável que o aço A possui menores teores de C e Mn e maior teor de Nb em relação ao Aço B, e mesmo assim, suas temperaturas críticas de decomposição da austenita ainda são superiores do que as verificadas no aço B. Isto, mais uma vez, corrobora para a hipótese de que a maior parte do Nb presente nos aços durante o resfriamento está na forma de carbonetos, não influenciando fortemente a cinética de decomposição da austenita.…”

Section: Determinação Experimental Dos Diagramas Trcunclassified

Efeito Da Composição Química Sobre a Cinética De Transformação De Fases De Aços Baixo Carbono Microligados Laminados Pelo Processo Steckel

Faria¹,

Cardoso²,

Lino³

2017

ABM Proceedings

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Ao final do processamento termomecânico nos laminadores do tipo Steckel, a tira laminada, já com sua espessura final, é submetida ao resfriamento controlado que geralmente é feito por uma cadeia regulável de aspersores de água. Este resfriamento promove as transformações de fases desejadas para que a microestrutura final do produto laminado confira a ele propriedades mecânicas adequadas para desempenhar com qualidade as funções de aplicação. Neste contexto, o conhecimento dos efeitos da composição química do aço sobre a cinética de transformação de fases possibilitará a adequação de parâmetros operacionais do laminador e do sistema de resfriamento. Reconhecendo a importância deste aspecto, este trabalho estudou a influência da composição química sobre a cinética de transformação de fases dos aços LNE 380 e API X65. Os dois aços foram submetidos a ensaios dilatométricos, metalográficos e de dureza. Ao final do estudo, concluiu-se que, comparados aos efeitos do Nb e Ti, o teor de Mn parece ser o fator com maior influência sobre as temperaturas de início e final tanto de austenitização como de decomposição da austenita durante o resfriamento contínuo. O aumento controlado no teor de Mn possivelmente potencializa o refinamento da microestrutura na etapa de resfriamento.Palavras-chave: LNE 380; API X65; Cinética de transformação de fases; Resfriamento contínuo.

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“…The influence of alloying and microalloying on the mechanical properties of high-strength steels has been investigated in many scientific works. In [2] the researchers reported that the higher manganese content resulted in higher hardenability, caused by a austenite to ferrite transformation at a lower temperature, and in finer microstructure in high-titanium microalloyed steels. The effects of the microalloying elements Nb, V and Ti on the microstructure and properties of quenched and tempered steel were studied in [3].…”

Section: Intr Introduction Oductionmentioning

confidence: 99%

Optimisation of chemical composition of high-strength structural steels for achieving mechanical property requirements

Бабаченко¹,

Kononenko²,

Snigura³

et al. 2021

Esaform 2021

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In addition to thermomechanical treatment, one of the main factors affecting the mechanical properties of steel is the chemical composition. The chemical composition may vary for a special high-strength low-alloy steel to meet certain mechanical property requirements. This work presents an approach, based on the method of physical-chemical modelling developed at the Z.I. Nekrasov Iron and Steel Institute of the National Academy of Sciences of Ukraine, to optimise the chemical composition of high-strength structural steels. The principle of this method is to describe the chemical composition of a melt by a complex of integral model parameters of interatomic interaction, characterising the chemical and structural state of the melt. The experimental data were analysed to obtain the regression model for mechanical properties based on the parameters of interatomic interaction. Finally, a multi-criteria optimisation method was applied to obtain an optimal set of microalloying elements which ensure the required mechanical properties.

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The effect of manganese content on mechanical properties of high titanium microalloyed steels

Cited by 14 publications

References 25 publications

Effect of TiC, TiN, and TiCN on microstructural, mechanical and tribological properties of PM steels

Effect of TiC, TiN, and TiCN on microstructural, mechanical and tribological properties of PM steels

Efeito Da Composição Química Sobre a Cinética De Transformação De Fases De Aços Baixo Carbono Microligados Laminados Pelo Processo Steckel

Optimisation of chemical composition of high-strength structural steels for achieving mechanical property requirements

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