scholarly journals Three-Dimensional Electromagnetic Mixing Models for Dual-Phase Steel Microstructures

2018 ◽  
Vol 8 (4) ◽  
pp. 529 ◽  
Author(s):  
Weibin Zhou ◽  
Mingyang Lu ◽  
Ziqi Chen ◽  
Lei Zhou ◽  
Liyuan Yin ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Three Dimensional ◽  
Mixing Models ◽  
Dual Phase ◽  
Electromagnetic Mixing

scholarly journals Numerical simulation of dual-phase steel based on real and virtual three-dimensional microstructures

2021 ◽  
Author(s):  
Frederik Scherff ◽  
Jessica Gola ◽  
Sebastian Scholl ◽  
Kinshuk Srivastava ◽  
Thorsten Staudt ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Simulation Model ◽  
Dual Phase Steel ◽  
Three Dimensional ◽  
Simultaneous Increase ◽  
Dual Phase ◽  
Structure Property ◽  
Heavy Plate ◽  
Property Correlation ◽  
Process Route

AbstractDual-phase steel shows a strong connection between its microstructure and its mechanical properties. This structure–property correlation is caused by the composition of the microstructure of a soft ferritic matrix with embedded hard martensite areas, leading to a simultaneous increase in strength and ductility. As a result, dual-phase steels are widely used especially for strength-relevant and energy-absorbing sheet metal structures. However, their use as heavy plate steel is also desirable. Therefore, a better understanding of the structure–property correlation is of great interest. Microstructure-based simulation is essential for a realistic simulation of the mechanical properties of dual-phase steel. This paper describes the entire process route of such a simulation, from the extraction of the microstructure by 3D tomography and the determination of the properties of the individual phases by nanoindentation, to the implementation of a simulation model and its validation by experiments. In addition to simulations based on real microstructures, simulations based on virtual microstructures are also of great importance. Thus, a model for the generation of virtual microstructures is presented, allowing for the same statistical properties as real microstructures. With the help of these structures and the aforementioned simulation model, it is then possible to predict the mechanical properties of a dual-phase steel, whose three-dimensional (3D) microstructure is not yet known with high accuracy. This will enable future investigations of new dual-phase steel microstructures within a virtual laboratory even before their production.

Investigation of the Three-Dimensional Shape of Slip Bands in Fatigued Dual Phase Steel

2014 ◽  
Vol 891-892 ◽  
pp. 482-487
Author(s):  
Lisa Zellmer ◽  
Stanislav Tereschenko ◽  
Angelika Brueckner-Foit ◽  
Peter Lehmann
Keyword(s):  
White Light ◽  
Dual Phase Steel ◽  
Ion Beam ◽  
Fatigue Crack Initiation ◽  
Three Dimensional ◽  
Dual Phase ◽  
Slip Bands ◽  
True Shape ◽  
Dimensional Shape ◽  
Three Dimensional Shape

The formation and the three-dimensional shape of slip bands in a fatigued dual phase steel were analyzed with the purpose of understanding the relation between fatigue crack initiation and the topography development on the specimen surface. Fatigue tests with small dog-bone-shaped specimens were conducted under fully reversed axial loading (R = -1) with a constant stress amplitude and were interrupted when the first slip bands occurred and at defined numbers of load cycles, respectively. Subsequently the surface topography of the specimen was investigated with a white light interferometer with hundredfold magnification and high numerical aperture (NA = 0.9) which allows analyzing the surface of individual grains. The results were confirmed by additional atomic force microscopy measurements. Based on this analysis the height, width and length of the slip bands are known at different stages of the fatigue process. The results obtained using white light interferometry and AFM, were checked by cutting individual slip bands with the help of focused ion beam thus revealing the true shape of the slip bands.

Fatigue characteristics of fine grain dual-phase steel.

1988 ◽  
Vol 37 (417) ◽  
pp. 637-642
Author(s):  
Shigeru YAMAMOTO ◽  
Hideaki NAKAYAMA ◽  
Tsuneshichi TANAKA
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Fine Grain ◽  
Fatigue Characteristics

Effect of gas nitriding in flowing ammonia on the hot-dip galvanising of the Dual-Phase steel DP500

2005 ◽  
Vol 96 (3) ◽  
pp. 233-241 ◽  
Author(s):  
A. Dimyati ◽  
D. Beste ◽  
T. E. Weirich ◽  
S. Richter ◽  
M. Bückins ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Gas Nitriding

Amplitude-Dependent Internal Friction of Dislocation Interactions in Dual-Phase Steel

2003 ◽  
Vol 94 (4) ◽  
pp. 436-441 ◽  
Author(s):  
A. K. De ◽  
T. Waterschoot ◽  
B. C. De Cooman
Keyword(s):  
Internal Friction ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Dislocation Interactions

scholarly journals Effect of peak stress and deformation history on the dynamic tensile behavior of a dual phase steel

2020 ◽  
Author(s):  
J.P. Escobedo ◽  
A.A.H. Ameri ◽  
M. Gonzales ◽  
R. Miller ◽  
H. Wang ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Peak Stress ◽  
Tensile Behavior ◽  
Dual Phase ◽  
Deformation History ◽  
Stress And Deformation

The Role of Phase Hardness Differential on the Non-uniform Elongation of a Ferrite-Martensite Dual Phase Steel

2021 ◽  
Author(s):  
Soudip Basu ◽  
Balila Nagamani Jaya ◽  
Anirban Patra ◽  
Sarbari Ganguly ◽  
Monojit Dutta ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Uniform Elongation ◽  
Dual Phase
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