Mit Simulation schneller zum Einsatz neuer hochfester Stähle
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1 Wir bringen unsere Kunden _einen Schritt weiter durch Technologie, Innovation und Nachhaltigkeit. Mit Simulation schneller zum Einsatz neuer hochfester Stähle Faster application of new high strength grades by simulation Materials simulation shortens development cycles Uwe Diekmann Hannover,
2 Agenda Introduction to Metatech Motivation and objectives Materials databases and models StahlDat SX the leading European database for steels JMatPro practical software for materials properties Simulation assisted development of steel innovations Phase equilibria and materials properties Phase transformations, TTT-diagrams and properties Conclusion and summary 2
3 Introduction to Metatech Metatech is a independent Engineering company founded 2008 Focus: Materials Technology Innovation Services: Consultancy Engineering/Development Materials Software Customers: Industrial clients (Steel, Foundries Metalworking, Heat-Treatment, Landmachinery, Automotive) 3
4 Motivation and Objectives Obvious benefits of rapid product development: Faster time to market Reduced costs Higher profit Obvious benefits of high strength steels: Cost effective Better performance Eco properties 4
5 Motivation and Objectives Obvious benefits of rapid product development: Faster time to market Reduced costs Higher profit Obvious benefits of high strength steels: Cost effective Better performance Eco properties 5
6 Materials Simulation - Reduction of time and costs Get there faster by fewer and faster cycles: Tuning the chemical composition of steels Save alloying costs Reduce complexity number of grades Finding the right schedules for processing Casting Forming/Rolling Heat treatment Prediction of product performance Strength Fatigue Corrosion 6
7 Materials property data needed for process simulation Materials Simulation Materials Databases Materials Testing
8 The leading European Steel Database: StahlDat SX Professional Developed and Powered by Metatech partnering with Learn more: 8
9 StahlDat SX Online current modules Register of Steels (Stahl-Eisen-Liste) Die offizielle Europäische Stahl-Registratur Thermophysikalische Eigenschaften Lieferanten/Produktformen, Referenzen zu Normen/Lieferbedingungen TTT-Database > 420 ZTU/ZTA Diagramme aus dem Wärmebehandlungsatlas und IEHK Aachen, IEST Freiberg Referenzen zu weiteren ZTU-Diagrammen Steel sheet database Feinblech-Daten für den Automobilbau Originaldaten nach SEP 1240 plastische, elastische, zyklische Kennwerte, Grenzformänderungsdiagramme
10 StahlDat SX Online current modules Library Wärmebehandlungsatlas der Stähle I-IV Ausscheidungsatlas Alle digitalen FOSTA-Berichte Alle Inhalte im Volltext durchsuchbar Flow-Curve Database (Mit Unterstützung seitens Institut für Metallformung / TU BA Freiberg) Warm/Kalt Parametrisch Vergleichbar Exportierbar in CAE
11 + Video Tutorials The Leading European Database of Steels Powered by: Metatech using 11
12 Materials Simulation: From phase diagrams Binäry > Ternary > Quaternary -> Multi-Component Systems 12
13 to calculation of materials properties CalPhad: Calculation of phase diagrams for multi-component systems User-friendly CalPhad Calculation of materials properties 13
14 JMatPro at a glance Prediction of amount and composition of each phase Thermodynamics Physical models Calculation of properties for each phase as a function of temperature and composition Materials: Al-alloys Co-alloys Mg-alloys Fe-based alloys Ni-based superalloys Ti-based alloys Zr-based alloys Solder alloys Calculation of materials properties as a function of amount of phases and morphology using a mixture model Data export to FEA packages FEA Exporter: Ansys Forge Deform Deform HT Simufact Magma, etc
15 Information from JMatPro 1. Stable and metastable phase equilibria - Step temperature calculation - Step concentration calculation 2. Physical and thermophysical properties - Enthalpy, Cp, Latent heat - Volume change, density, and solidification shrinkage - Thermal expansion coefficients - Thermal conductivity and diffusivity - Electrical conductivity and resistivity - Liquid viscosity and surface tension - Young s, bulk and shear modulii 3. Microstructure evolution during processing - Solidification, Precipitation, Phase transformations 4. Mechanical properties - Strength & hardness, - Creep, - Stress-strain curves
16 Phase equilibria of multicomponent alloys Get a feeling for effects of compositional changes
17 Example Boron-Steel: Optimize Titanium-Nitrogen Balance Objective: Maximize free Boron in Austenite
18 Physical Properties from JMatPro (metastable equilibrium example)
19 JMatPro advanced topics: Transformation, Precipitation, Strength
20 Optimizing processes: Heat treatment simulation Needed: Consistent material properties as function of temperature and quenching rate Prediction of: Phase transformations Stress levels Distortion
21 Deform HT: Materials data from JMatPro Thermophysical Properties (Conductivity, Enthalpy, Moduli, Expansion, etc.) Phase Transformations (CCT/TTT), Transformation plasticity Flow stress model
22 Modelling of quenching and distortion Distortion = f(stresses and strength) Options: Optimize mold geometry Optimize material (e.g. transformations, strength, alloying)
23 Summary Materials Simulation can be used in industrial practice to accelerate development processes FEA-tools for Casting/Forming/Heat-Treatment are state-of-the-art in industry to improve production processes - JMatPro calculates consistent Material models for them JMatPro is designed for usability, robustness and performance and has a good acceptance in industrial practice
24 Thank you! Metatech GmbH Lünener Straße 211/212 D Kamen Tel: + 49 (0) Fax + 49 (0) uwe.diekmann@metatech.pro
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