Peter Presoly
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View article: The Interaction Between Oxidation-Related Phenomena Along Grain Boundaries on Surface Crack Formation in Continuous Casting
The Interaction Between Oxidation-Related Phenomena Along Grain Boundaries on Surface Crack Formation in Continuous Casting Open
Oxidation-related surface defect formation in continuous casting is an under-researched topic, as most of the experiments, which aim to define surface defect mechanisms, are performed under a protective atmosphere. However, intergranular o…
View article: Grain refinement of high-Mn wear-resistant cast steel by means of heterogeneous nucleation
Grain refinement of high-Mn wear-resistant cast steel by means of heterogeneous nucleation Open
Understanding and controlling the primary solidification, particularly the formation of first grains, is of significant relevance. Generally, high-Mn steels, such as alloy Mn13, exhibit a coarse-grained microstructure in the millimeter ran…
View article: Experimental Analysis of the Nb(C,N) Pinning Effects on Austenite Grain Growth Coupled with Mean‐Field Simulations
Experimental Analysis of the Nb(C,N) Pinning Effects on Austenite Grain Growth Coupled with Mean‐Field Simulations Open
The pinning forces of niobium carbonitrides (Nb(C,N)) on grain boundary (GB) migration in austenite (γ‐Fe) are studied under isothermal annealing conditions at temperatures of 950, 1050, 1150, and 1250 °C. High‐temperature laser scanning c…
View article: A Hybrid Update of the Fe-Si System by DSC, Thermodynamic Modeling and Statistical Learning from Ladle Refining Data of Electrical Steels
A Hybrid Update of the Fe-Si System by DSC, Thermodynamic Modeling and Statistical Learning from Ladle Refining Data of Electrical Steels Open
Electrical steels, also known as silicon steels, are essential materials in electrical applications due to their unique magnetic properties, which are enhanced by adding up to 3.5 wt pct Si. However, alloying with ferrosilicon FeSi75, a mi…
View article: Scaling Behavior and Surface Quality of High-Strength Low-Alloy Steels with Higher Levels on Cu, Sn, and Ni Under Slab Reheating Conditions
Scaling Behavior and Surface Quality of High-Strength Low-Alloy Steels with Higher Levels on Cu, Sn, and Ni Under Slab Reheating Conditions Open
Nowadays the production of steel from scrap in electric arc furnaces is the most common bridging technology to reduce CO 2 emissions. Depending on scrap quality, a non-negligible content of tramp elements such as Cu, Sn, or Ni is introduce…
View article: On the Role of Tramp Elements for Surface Defect Formation in Continuous Casting of Steel
On the Role of Tramp Elements for Surface Defect Formation in Continuous Casting of Steel Open
In the course of the decarbonization of steel production, electric steel production will continue to gain importance. The processing of low‐quality scrap will also play an important role, which may lead to an increase in the content of so‐…
View article: Influence of Silicon and Tramp Elements on the High-temperature Oxidation of Steel in Direct Casting and Rolling Processes
Influence of Silicon and Tramp Elements on the High-temperature Oxidation of Steel in Direct Casting and Rolling Processes Open
Oxidation processes are unavoidable in continuous casting and further hot processing of steel. A deeper understanding of the occurring phenomena such as intergranular oxidation and liquid metal infiltration of grain boundaries is essential…
View article: Critical Examination of the Representativeness of Austenite Grain Growth Studies Performed In Situ Using HT-LSCM and Application to Determine Growth-inhibiting Mechanisms
Critical Examination of the Representativeness of Austenite Grain Growth Studies Performed In Situ Using HT-LSCM and Application to Determine Growth-inhibiting Mechanisms Open
This contribution critically addresses the potential of HT-LSCM experiments for in situ observations of austenite grain growth (AGG). By quantifying AGG for various alloys, the impact of impurity induced solute drag effects (SDE) and secon…
View article: The influence of intergranular oxidation on surface crack formation in continuous casting of steel
The influence of intergranular oxidation on surface crack formation in continuous casting of steel Open
High-temperature oxidation phenomena play an important role in steel processing. What is mostly underrated is the importance of internal oxidation in casting processes, namely the continuous casting process. To investigate the impact of in…
View article: High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data
High-Temperature Oxidation of Steel under Linear Flow Rates of Air and Water Vapor—An Experimental Determined Set of Data Open
High-temperature oxidation phenomena play a crucial role in steel production and processing. The development of new alloying concepts, the modification of production routes due to the decarbonization of steelmaking, and increasing quality …
View article: Decomposition of γ-Fe in 0.4C–1.8Si-2.8Mn-0.5Al steel during a continuous cooling process: A comparative study using in-situ HT-LSCM, DSC and dilatometry
Decomposition of γ-Fe in 0.4C–1.8Si-2.8Mn-0.5Al steel during a continuous cooling process: A comparative study using in-situ HT-LSCM, DSC and dilatometry Open
Continuous cooling transformation (CCT) diagrams represent roadmaps for producing all heat-treatable steels. CCT curves provide valuable information on the solid-state phase transformation sequence, depending on the defined cooling strateg…
View article: Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap
Thermodynamic modeling of the Fe-Sn system including an experimental re-assessment of the liquid miscibility gap Open
The usage of low-grade ferrous scrap has increased over decades to decrease CO2 emissions and to produce steel products at a low cost. A serious problem in melting post-consumer scrap material is the accumulation of tramp elements, e.g., C…
View article: Primary Carbide Formation in Tool Steels: Potential of Selected Laboratory Methods and Potential of Partial Premelting for the Generation of Thermodynamic Data
Primary Carbide Formation in Tool Steels: Potential of Selected Laboratory Methods and Potential of Partial Premelting for the Generation of Thermodynamic Data Open
To predict the solidification and product properties of tool steels with complex chemical compositions, an understanding of the transformation behavior is crucial. Therefore, the quaternary Fe–C system with 10 wt% Cr and 3 wt% W (a subsyst…
View article: Evaluation of different alloying concepts to trace non-metallic inclusions by adding rare earths on a laboratory scale
Evaluation of different alloying concepts to trace non-metallic inclusions by adding rare earths on a laboratory scale Open
Different alloying concepts to trace deoxidation products, mainly aluminium oxides, using rare earth elements (REEs), were tested on the laboratory scale by melting trials with a high-frequency remelting furnace. Lanthanum and Cerium, whic…
View article: An Assessment of Analytical Liquidus Equations for Fe-C-Si-Mn-Al-P-Alloyed Steels Using DSC/DTA Techniques
An Assessment of Analytical Liquidus Equations for Fe-C-Si-Mn-Al-P-Alloyed Steels Using DSC/DTA Techniques Open
Analytical liquidus equations were evaluated using differential scanning calorimetry (DSC) and differential thermal analysis (DTA). Results of 180 measurements in the Fe-C-Si-Mn-Al-P subsystems were considered, where the experimental metho…
View article: Characterization of the γ-loop in the Fe-P system by coupling DSC and HT-LSCM with complementary in-situ experimental techniques
Characterization of the γ-loop in the Fe-P system by coupling DSC and HT-LSCM with complementary in-situ experimental techniques Open
Solid-state phase transformations in the γ-loop of the binary Fe-P system were studied using differential scanning calorimetry (DSC) and high-temperature laser scanning confocal microscopy (HT-LSCM). In total, eight alloys with varying P c…
View article: Experimental Study of High Temperature Phase Equilibria in the Iron-Rich Part of the Fe-P and Fe-C-P Systems
Experimental Study of High Temperature Phase Equilibria in the Iron-Rich Part of the Fe-P and Fe-C-P Systems Open
During the solidification of steel, phosphorus strongly segregates in the interdendritic liquid phase. In the continuous casting process, even low levels of P may have a detrimental effect on the final product quality. However, phosphorus …
View article: Study on the Possible Error Due to Matrix Interaction in Automated SEM/EDS Analysis of Nonmetallic Inclusions in Steel by Thermodynamics, Kinetics and Electrolytic Extraction
Study on the Possible Error Due to Matrix Interaction in Automated SEM/EDS Analysis of Nonmetallic Inclusions in Steel by Thermodynamics, Kinetics and Electrolytic Extraction Open
Up to now, the Fe content of nonmetallic particles has often been neglected in chemical evaluations due to the challenging analysis of matrix elements in nonmetallic inclusions (NMI) in steel by scanning electron microscope and energy disp…
View article: Tailoring the FeO/SiO2 Ratio in Electric Arc Furnace Slags to Minimize the Leaching of Vanadium and Chromium
Tailoring the FeO/SiO2 Ratio in Electric Arc Furnace Slags to Minimize the Leaching of Vanadium and Chromium Open
Based on recently published research on leaching control mechanisms in electric arc furnace (EAF) slags, it is assumed that a FeO/SiO2 ratio of around one leads to low leached V and Cr concentrations. This ratio influences the mineral phas…
View article: Evaluation of AHSS concepts with a focus on the product properties and appropriate casting characteristics of Arvedi ESP thin slab casters
Evaluation of AHSS concepts with a focus on the product properties and appropriate casting characteristics of Arvedi ESP thin slab casters Open
The Arvedi ESP process and a variety of produced materials have been continuously developed since the opening of the Arvedi ESP plant in Cremona in 2009 to meet market demands for more sophisticated steel grades. The development of grades …
View article: Modeling Inclusion Formation during Solidification of Steel: A Review
Modeling Inclusion Formation during Solidification of Steel: A Review Open
The formation of nonmetallic inclusions in the solidification process can essentially influence the properties of steels. Computational simulation provides an effective and valuable method to study the process due to the difficulty of onli…
View article: On the importance of thermodynamic investigations for the re-assessment of selected ternary Fe-base systems
On the importance of thermodynamic investigations for the re-assessment of selected ternary Fe-base systems Open
Reliable thermodynamic data are essential for the design and the production of new alloying systems. Particularly, the knowledge of the high-temperature phase transformations (TLiquid, TSolid, TPerit, Tγ→δ) are important for the solidifica…
View article: On the modelling of microsegregation in steels involving thermodynamic databases
On the modelling of microsegregation in steels involving thermodynamic databases Open
A microsegregation model involving thermodynamic database based on Ohnaka's model is proposed. In the model, the thermodynamic database is applied for equilibrium calculation. Multicomponent alloy effects on partition coefficients and equi…
View article: Thermodynamic optimization of individual steel database by means of systematic DSC measurements according the CALPHAD approach
Thermodynamic optimization of individual steel database by means of systematic DSC measurements according the CALPHAD approach Open
Reliable thermodynamic data are essential information required for the design of new steel types and are a prerequisite to effective process optimization and simulation. Moreover, it is important to know the exact temperatures at which the…