Clustering effect on high temperature tensile behaviour of vanadium microalloyed steel

Gündüz, Süleyman; Mullis, Andrew M.

doi:10.1016/j.jmatprotec.2006.12.040

Cited by 4 publications

(2 citation statements)

References 11 publications

(9 reference statements)

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“…The subject of the research were newly elaborated microalloyed HSLA-type steels with chemical composition presented in Table 1. Chemical composition of examined steels was developed on the basis of detailed analysis of the literature [4,5,7,15,24,32,37,39] in terms of the production of forgings using thermomechanical treatment method.…”

Section: Methodsmentioning

confidence: 99%

“…In case of HSLA-type steels, the increase in strength is related to grain refinement and precipitation hardening by dispersive particles of carbides, nitrides and carbonitrides [9,10,41,42]. The analysis of publications related to manufacturing of forgings with the use of thermomechanical treatment reveals that the studies conducted so far have been focused on introducing V [15,24,32,37] and Ti and V [4,5,7,39] microadditions into steel. Very few studies on combined application of Nb, Ti and V creates the necessity to perform more detailed analysis of understanding of the complex interaction of MXtype interstitial phases containing Nb, Ti and V and the process of their precipitation.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Analysis of Precipitation Process of MX-type Phases in High Strength Low Alloy Steels

Opiela¹

2021

Adv. Sci. Technol. Res. J.

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The paper presents the results of thermodynamic analysis of precipitation process of MX-type interstitial phases in austenite. The subject of the investigation were two newly developed high strength low alloy microalloyed steels with similar concentration of C and N and with diversified amount of Nb, Ti and V microadditions. Thermodynamic analysis of the state of phase equilibrium of structural constituents, taking into consideration the austenite of investigated microalloyed steels, was mainly focused on analytic calculations of chemical composition of austenite and the content and chemical composition of potential MX-type interstitial phases (M -metal, X -metalloid) as a function of heating or cooling temperature. The analysis of precipitation process of complex carbonitrides in austenite under thermodynamic equilibrium conditions has allowed to define stoichiometric compositions of carbonitrides as a function of temperature along with determination of their volume portion. This study was based on the model proposed by Hillert and Staffanson, which was subsequently developed by Adrian. The results of performed investigation can be used to develop the appropriate parameters of thermomechanical treatment of metallurgical products from the tested HSLA-type steels.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of Precipitation Process of MX-type Phases in High Strength Low Alloy Steels

Opiela¹

2021

Adv. Sci. Technol. Res. J.

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Reaction synthesis of (Ti,V)C carbide reinforced Fe based surface composite coating by laser cladding

Wang¹,

Liu²,

Zhang³

et al. 2009

Surface Engineering

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A multiple carbide particle reinforced Fe based surface composite coating has been in situ synthesised by laser cladding. The microstructure of the coating was analysed by using scanning electron microscopy, electron probe microanalyser and X-ray diffractometry. The results showed that TiCzd-(Ti,V)C or VCzd-(Ti,V)C multiple carbides with cubic or flower-like form were synthesised via in situ reaction in the molten pool during laser cladding process. The multiple carbides were homogeneously distributed in the matrix. With increasing the amount of ferrovanadium, the type of carbides changed from the TiCzd-(Ti,V)C multiple carbides to VCzd-(Ti,V)C. The microhradness of the composite coating reinforced by multiple carbides was higher than TiC on its own would.a carbides in composite coating; b electron diffraction pattern of carbide 4 Image (TEM) of (Ti,V)C particle in coating Wang et al. Synthesis of (Ti,V)C carbide reinforced Fe based surface composite coating Surface Engineering 2009 VOL 25 NO 3

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Microstructural Effects on Fatigue Behaviour of a Forged Medium Carbon Microalloyed Steel

Gündüz¹,

Karabulut²,

Erden³

et al. 2013

Materials Testing

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The effect of different microstructures on the fatigue behaviour of a medium carbon vanadium microalloyed steel has been studied. Specimens were subjected to a controlled closed die forging followed by cooling in sand, air or oil, respectively. The hardness and fatigue properties of the microalloyed steel are determined and compared with those of ferrite-pearlite and martensite microstructures obtained by cooling with different mediums after forging. Relatively fine ferrite and pearlite increase the fatigue strength of the steel, while the martensite structure reduces the fatigue strength. Characteristics of fatigue fracture surface morphology are summarized and related to fatigue crack initiation and propagation mechanisms in the forged medium carbon microalloyed steel. The cooling rate has a remarkable effect on the microstructure, hardness, and fatigue behaviour at room temperature.

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Clustering effect on high temperature tensile behaviour of vanadium microalloyed steel

Cited by 4 publications

References 11 publications

Thermodynamic Analysis of Precipitation Process of MX-type Phases in High Strength Low Alloy Steels

Thermodynamic Analysis of Precipitation Process of MX-type Phases in High Strength Low Alloy Steels

Reaction synthesis of (Ti,V)C carbide reinforced Fe based surface composite coating by laser cladding

Microstructural Effects on Fatigue Behaviour of a Forged Medium Carbon Microalloyed Steel

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