Technology for high performance TRIP steel

Gao, Yi; Zhu, Naqiong; He, Yanlin; Liu, Rendong; He, Zhongping; Wen, Shu Wen; Zhang, Mei

doi:10.1007/s11431-012-4872-z

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…These fractional operators are non-local and they have certain capacity of memory associated their convolution kernel, so Fractional Calculus became a powerful framework to model many real processes of anomalous systems ( [4][5][6][7][8]) by using fractional ordinary or partial differential equations and systems of these fractional equations ( [9][10][11][12]). In this sense, the introduction of fractional operators for building a fractional Sturm-Liouville theory can be interesting to generalize the classical theory and to give theoretical support to the numerical results obtained by several authors recently (for example, [13][14][15][16][17][18][19][20][21]). …”

Section: Introductionmentioning

confidence: 93%

A fractional approach to the Sturm-Liouville problem

2013

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Abstract:The objective of this paper is to show an approach to the fractional version of the Sturm-Liouville problem, by using different fractional operators that return to the ordinary operator for integer order. For each fractional operator we study some of the basic properties of the Sturm-Liouville theory. We analyze a particular example that evidences the applicability of the fractional Sturm-Liouville theory. PACS

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Section: Introductionmentioning

confidence: 93%

A fractional approach to the Sturm-Liouville problem

2013

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“…Coupling thermodynamic and kinetic calculation in the field of materials science serves as an appropriate guidance for the materials study and reduces the amount of experiments. Thermo-Calc software, as one of the most powerful commercial software package for calculation of phase equilibrium from a broad database, has been used for the design of TRIP steels [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Calculation of Non-Equilibrium Microstructure Design of TRIP Steel

Zhu

Zheng

et al. 2014

MSF

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The non-equilibrium microstructure of Fe-C-Mn-Si TRIP steel is designed bythermodynamic and kinetic calculation. The upper limit of bainitic transformation temperature iscalculated and compared to that characterized by CCT curve determination. s M temperature isdetermined based on thermodynamics of martensitic transformation and sublattice model. Thecalculation is conducted via TQ6-patch in Thermo-Calc software. Comparison between thecalculations and experiments reveals the relationship between non-equilibrium phase compositionand heat treatment parameters which can be utilized to achieve the elaborate design of alloy and heattreatment for super TRIP steel.

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“…Transformation induced plasticity(TRIP)steel was attracting more and more attention by researcher and engineering for it's excellent mechanical properties. As a low alloying high strength steel, TRIP steel exhibits a good combination of strength and plasticity, which was very suitable for weight loss and energy conservation of automotive industry [1][2][3][4]. TRIP steel was composed of residual austenite, ferrite and bainite, the macro excellent mechanical properties depends on the microstructure greatly.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation of TRIP Steel Residual Austenite Stacking Fault Development

et al. 2013

AMR

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TRIP (Transformation induced plasticity) steel has a good combination of high strength and high plasticity which depend on the micro phase transformation and staking fault development greatly. C atom was typical alloying agent of austenite and plays an important role in austenite behavior, especially for staking fault nucleation. As a micro materials behavior, molecular dynamics simulation was carried out to discuss the effect of C atom on the staking fault nucleation. From the simulation result we can find that carbon influence the staking fault nucleation greatly, with the increasing of the number of C atoms, strain for staking fault form decreased, system with 4 C atoms staking fault formed when strain was 7.5% and for system without C atoms there are no staking fault with local tension strain up to 10%. Under the same deformation, stacking fault distribution was uniform for the system with 1 carbon and become uneven with the increasing of the C atom.

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Technology for high performance TRIP steel

Cited by 4 publications

References 7 publications

A fractional approach to the Sturm-Liouville problem

A fractional approach to the Sturm-Liouville problem

Thermodynamic and Kinetic Calculation of Non-Equilibrium Microstructure Design of TRIP Steel

Molecular Dynamics Simulation of TRIP Steel Residual Austenite Stacking Fault Development

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