5 Werkstofftechnik
Filtern
Dokumenttyp
- Vortrag (121)
- Beitrag zu einem Tagungsband (22)
- Forschungsdatensatz (21)
- Posterpräsentation (20)
- Zeitschriftenartikel (7)
- Buchkapitel (7)
- Dissertation (4)
- Forschungsbericht (4)
- Sammelband (Herausgeberschaft für den kompletten Band) (3)
- Monografie (1)
Sprache
- Englisch (162)
- Deutsch (48)
- Französisch (1)
Referierte Publikation
- nein (211) (entfernen)
Schlagworte
- Ontology (29)
- Creep (19)
- Microstructure (17)
- Additive manufacturing (16)
- LCF (16)
- Degradation (13)
- Additive Manufacturing (11)
- Aluminium (11)
- Alloy 2618A (10)
- Coarsening (10)
- Ti-6Al-4V (10)
- FAIR (9)
- Fatigue (9)
- Low Cycle Fatigue (9)
- 316L (8)
- EN AW-2618A (8)
- Ontologie (8)
- Transmission electron microscopy (8)
- Additive Fertigung (7)
- Aluminium alloy (7)
- Anisotropy (7)
- Digitalization (7)
- Kriechen (7)
- Mechanical testing (7)
- Plattform MaterialDigital (7)
- S-phase (7)
- Semantic Web Technologies (7)
- Zugversuch (7)
- Crystal plasticity (6)
- Mikrostruktur (6)
- Nickel-base superalloys (6)
- Semantic Interoperability (6)
- TMF (6)
- Thermomechanical fatigue (6)
- AGIL (5)
- AISI 316L (5)
- Aging (5)
- Crack growth (5)
- Dark-field transmission electron microscopy (DFTEM) (5)
- Data Interoperability (5)
- Digitalisierung (5)
- FAIR data (5)
- FAIR data management (5)
- Fe-Al alloys (5)
- Intermetallics (5)
- Iron aluminides (5)
- Knowledge Representation (5)
- Knowledge graph and ontologies (5)
- PMD Core Ontology (5)
- Tensile Test (5)
- Wissensrepräsentation (5)
- Computed Tomography (4)
- Data Fusion (4)
- Data mapping (4)
- EBSD (4)
- Fatigue crack growth (4)
- Ni-Resist (4)
- Normung (4)
- P92 (4)
- Plattform Material Digital (4)
- Reference data (4)
- Scale-bridging (4)
- Schädigung (4)
- Shear modulus (4)
- Tensile test (4)
- Tensile testing (4)
- Virtual experiments (4)
- Young's modulus (4)
- Brinell hardness (3)
- Crack (3)
- Crack tip opening displacement (3)
- Creep data (3)
- Creep-fatigue (3)
- Damage (3)
- Dark-field transmission electron microscopy (3)
- Digtial Representation (3)
- Elastic modulus (3)
- Electronic Lab Notebook (3)
- Ferritic-martensitic steels (3)
- Fractography (3)
- Hardness (3)
- High temperature mechanical properties (3)
- Interoperability (3)
- Knowledge graph (3)
- Laser Powder Bed Fusion (3)
- Laser powder bed fusion (3)
- Lebensdauer (3)
- Mechanical behavior (3)
- Mechanische Eigenschaften (3)
- Metadata schema (3)
- PMDco (3)
- Referenzdaten (3)
- Research Data Management (3)
- Residual stress (3)
- Semantic Data (3)
- Semantic Web (3)
- Stress relaxation (3)
- Superalloy (3)
- Superlegierung (3)
- Syngle Crystal alloy (3)
- Tempered Martensite Ferritic Steels (3)
- Tensile Test Ontology (3)
- Tensile data (3)
- Thermo-Mechanical Fatigue (3)
- Al-Cu-Li alloys (2)
- Alterung (2)
- Aluminium Alloy (2)
- Aluminum (2)
- Aluminum alloys (2)
- CT (2)
- Casting (2)
- Copper (2)
- Copper alloys (2)
- Crack propagation (2)
- Creep behavior (2)
- Creep-Fatigue (2)
- Data Management (2)
- Data Structures (2)
- Data management (2)
- Dataset (2)
- Diffraction (2)
- Diffraction Elastic Constants (2)
- Digital material representation (2)
- Digital representation (2)
- Digitization (2)
- Dislocations (2)
- Electron Backscatter Diffraction (2)
- HIP (2)
- Heat treatment (2)
- High Cycle Fatigue (2)
- High Temperature Testing (2)
- IN 718 (2)
- Joined nickel-based alloys (2)
- Kleinprobenprüfung (2)
- Laser Powder Bed fusion (2)
- Long-term behavior (2)
- Low cycle fatigue (2)
- Material digital (2)
- Metal seal (2)
- Micromechanical model (2)
- Microstrucrue Design (2)
- Microstructure evolution (2)
- Microstructure-property-correlation (2)
- NFDI (2)
- Notches (2)
- Ontologien (2)
- Ontology development (2)
- PBF-LB/M/316L (2)
- PMD (2)
- Phase-field simulation (2)
- Probengrößeneffekt (2)
- Residual Stress (2)
- S355 steel sheet (2)
- Semantic Representation (2)
- Semantisches Web (2)
- Simulation (2)
- Standard (2)
- Standardisierung (2)
- Standardization (2)
- TEM (2)
- Tensile Properties (2)
- Ti64 (2)
- TiAl5V4 (2)
- Titan (2)
- Titanium (2)
- Vickers hardness (2)
- Wall thickness (2)
- Zugeigenschaften (2)
- 9-12% Cr ferritic-martensitic steels (1)
- 9–12%Cr steel (1)
- AM (1)
- Abgasturbolader Heißteile (1)
- Accelerated integration scheme (1)
- Age hardening (1)
- Ageing (1)
- Al-Li alloys (1)
- Al2CuMg (1)
- Allgemeine Grundlagen (1)
- Alloy 2818A (1)
- Aluminiumlegierung (1)
- Aluminum alloy (1)
- Anwendungen (1)
- Aufbau von Festkörpern (1)
- Austenitic cast iron (1)
- Austenitischer Stahl (1)
- Automatable digital approach (1)
- Automated finite element analysis (1)
- Automation (1)
- Automatische Finite Element Simulation (1)
- Beanspruchung (1)
- Bruch (1)
- CALPHAD (1)
- CMSX4 (1)
- Calibration (1)
- Centrifugal casting (1)
- Centrifugal compressor wheel (1)
- Charpy test (1)
- Chemische Analyse (1)
- Chemo-mechanical coupling (1)
- Complex borides (1)
- Compositionally complex alloys (1)
- Computed tomography (1)
- Concrete (1)
- Continnum damage model (1)
- Creep behaviour (1)
- Creep, Creep Rupture, and Stress Rupture (1)
- Crystal Defects (1)
- Crystal Plasticity Modelling (1)
- Cyclic loading (1)
- Cyclic oxidation (1)
- Cyclic softening (1)
- DED-L (1)
- DIN (1)
- Damage Behavior (1)
- Damage behavior (1)
- Data Exchange (1)
- Data Integration (1)
- Data Mapping (1)
- Data format (1)
- Data linking (1)
- Data pipeline concept (1)
- Data storage (1)
- Data structure (1)
- Datenfusion (1)
- Datenökosystem (1)
- Defects phase diagram (1)
- Defects thermodynamics (1)
- Demonstrators (1)
- Density-based Thermodynamics (1)
- Density-based model (1)
- Die casting (1)
- Diffusion (1)
- Digital Transformation (1)
- Digital workflow (1)
- Dwell-Fatigue (1)
- EN AW 2618A (1)
- EN AW 2618A a (1)
- Eigenschaften (1)
- Eigenspannung (1)
- Elasticity (1)
- Elctronic Lab Notebook (1)
- Electrochemical dressing (1)
- Electron backscatter diffraction (1)
- Electron microscopy (1)
- Electropolishing (1)
- Elektronisches Laborbuch (ELN) (1)
- Elektrotechnische Grundlagen (1)
- Energiewende (1)
- Energy transition (1)
- Entwicklung (1)
- Environmental Stress Cracking (1)
- Environmentally assisted cracking (1)
- Ermüdung (1)
- FAIR Data (1)
- FAIR Data Management (1)
- FAIR data. (1)
- FAIR principles (1)
- FNCT (1)
- Fatigue crack propagation (1)
- Fatigue performance (1)
- Fatigue testing (1)
- Finite elmenet simulation (1)
- Finite-Elemente-Methode (1)
- Fracture mechanics (1)
- Full-Notch Creep Test (1)
- Full-notch creep test (1)
- Gefügeuntersuchung (1)
- Gefügte Nickelbasislegierungen (1)
- General Chemistry (1)
- Glas (1)
- Glass forming (1)
- Gleichgewicht (1)
- Grain boundaries (1)
- Graphic design (1)
- Grundlagen des Maschinenbaus (1)
- HCF (1)
- Hardness test (1)
- Heat Treatment (1)
- High cycle fatigue (1)
- High entropy alloy (1)
- High entropy alloys (1)
- Hochentropie-Legierung (1)
- Hochtemperatur (1)
- Hochtemperaturermüdung (1)
- Honing (1)
- Honing Stone (1)
- Hot isostatic pressing (HIP) (1)
- IN718 (1)
- In-Situ Testing (1)
- Informationstechnische Grundlagen (1)
- Interfacial Spinodal (1)
- Intermetallische FeAl-Legierungen (1)
- Inverse ostwald ripening (1)
- Investment casting (1)
- Irregular topography (1)
- Kennwertermittlung (1)
- Keramik (1)
- Knowledge Graph (1)
- Knowledge Graphs (1)
- Korrosion (1)
- Kreislaufwirtschaft (1)
- Kriechermüdung (1)
- Kristallsystem (1)
- Kupfer (1)
- L-PBF 316L (1)
- LMD (1)
- Laser Poeder Bed Fusion (1)
- Laser Scanning Microscopy (1)
- Laser-Pulverbettschmelzen (1)
- Lebensdauervorhersage (1)
- Legierung mit komplexer Zusammensetzung (1)
- Life cycle (1)
- Lifetime prediction (1)
- Low Cycle Fatigue (LCF) (1)
- Low-Cycle Fatigue (LCF) (1)
- Low-Cycle-Fatigue (1)
- Low-cycle fatigue. (1)
- Low-cycle-fatigue behaviour (1)
- Lötverbindung (1)
- Magnetic domains (1)
- Magnetische Domänen (1)
- Magnetoelastic effect (1)
- Magnetoelastischer Effekt (1)
- Mass transport (1)
- Mat-o-lab (1)
- Material Life Cycle (1)
- Material degradation (1)
- MaterialDigital (1)
- Materialcharakterisierung (1)
- Materialentwicklung (1)
- Materialkreislauf (1)
- Materialprüfung (1)
- Materials Chemistry (1)
- Materials Science (1)
- Materials and Processes Data Reusability (1)
- Materials science (1)
- Materials testing (1)
- Mathematisch-naturwissenschaftliche Grundlagen (1)
- Mechanical Engineering (1)
- Mechanical Properties (1)
- Mechanics of Materials (1)
- Mechanisches Verhalten (1)
- Mechanistic Modelling (1)
- Mehrachsige Verformung (1)
- Mehrskalenmodell (1)
- Metall (1)
- Metals and Alloys (1)
- Micro computed tomography (1)
- Microstructural evolution (1)
- Microstructure analysis (1)
- Microstructure characterisation (1)
- Microstructure modification (1)
- Mid-Level Ontology for MSE (1)
- Mikro-Computertomographie (1)
- Mikrostrukturentwicklung (1)
- Mikrostrukturuntersuchung (1)
- Missing acknowledgment (1)
- Modeling (1)
- Modell (1)
- Multiaxial deformation (1)
- NFDI-MatWerk (1)
- NIST (1)
- Neutron diffraction (1)
- Nickel-base alloy (1)
- Nickel-base superalloy (1)
- Nimonic 75 (1)
- Non-destructive testing (1)
- Numerische Simulation (1)
- Ontologies (1)
- Overaging (1)
- P92 steels (1)
- PE-HD (1)
- Parametric modeling (1)
- Phase field simulation (1)
- Phase-field (1)
- Plasticity (1)
- Platform Material Digital (1)
- Platform Material Digital (PMD) (1)
- Platform MaterialDigital (1)
- Platform MaterialDigital (PMD) (1)
- Plattform Material Digital (PMD) (1)
- Polyethylene (1)
- Polymer (1)
- Pores (1)
- Porosity (1)
- Power plant (1)
- Precipitates (1)
- Precipitation (1)
- Precipitation Analysis (1)
- Precipitation hardening (1)
- Quantitative Precipitation Analysis (1)
- Quantitative image analysis (1)
- Radii distribution (1)
- Rafting (1)
- Reference Data (1)
- Reference Dataset (1)
- Reference material BCR-425 (1)
- Referenzmaterial (1)
- Referenzorganismus (1)
- Referenzverfahren (1)
- Relaxation tests (1)
- Reproducibility (1)
- Reusability (1)
- Rissausbreitung (1)
- Risse (1)
- Rissform (1)
- Rissfortschritt (1)
- Rissverlauf (1)
- S-Phase (1)
- SEN-Probe (1)
- Schadenskunde (1)
- Selective laser melting (1)
- Semantic Interioerability (1)
- Semantic Web technologies (1)
- Semantic structuring (1)
- Semantic web (1)
- Semantische Daten (1)
- Simulation of concrete (1)
- Simulationsgestützte Gießkonzepte (1)
- Single crystal superalloys (1)
- Single-Crystal (1)
- Single-crystals (1)
- Solidification (1)
- Spinodal Decomposition (1)
- Strength (1)
- Structural steel (1)
- Structured Data (1)
- Struktur (1)
- Superalloys (1)
- Symmetric dwell periods (1)
- TMF experiments (1)
- Tempered martensite ferritic steels (1)
- Tempered martensite-ferritic steel (1)
- Tensile stress relaxation (1)
- Tensile stress relaxation testing (1)
- Texture (1)
- Thermo-mechanical fatigue (1)
- Thermographie (1)
- Thermomechanical Fatigue (TMF) (1)
- Thermomechanische Ermüdung (1)
- Thermophysikalische Eigenschaften (1)
- Thesaurus (1)
- Tools (1)
- Tribologie (1)
- Under cyclic loading (1)
- Ungleichgewicht (1)
- Unlegierter Baustahl (1)
- Vacancies (1)
- Verbundwerkstoff (1)
- Vernetzung (1)
- Vickers Hardness (1)
- Virtueller Materialdatenraum (1)
- Viscoplasticity (1)
- Viskoplastisch (1)
- Werkstoffauswahl (1)
- Werkstoffkennwerte (1)
- Werkstoffmechanische Prüfung (1)
- Werkstoffprüfung (1)
- Workshop (1)
- Zerstörungsfreie Prüfung (1)
- Zugversuchsontologie (1)
- coarsening (1)
- hardness (1)
Organisationseinheit der BAM
- 5.2 Metallische Hochtemperaturwerkstoffe (211) (entfernen)
Fatigue test ontology (FTO)
(2024)
Fatigue Test Ontology (FTO) has developed for representing the fatigue testing process, testing equipment requirements, test pieces charactristics, and related testing parameters and their measurement procedure according to DIN EN ISO 12106 standard.
Versions info:
V2 developed using PROVO+PMDco top-level ontologies.
V3 developed using BFO+IOF top-level ontologies.
Repositories:
GitLab: https://gitlab.com/kupferdigital/process-graphs/lcf-test
GitHub: https://github.com/HosseinBeygiNasrabadi/Fatigue-Test-Ontology-FTO-
MatPortal: https://matportal.org/ontologies/FTO
IndustryPortal: https://industryportal.enit.fr/ontologies/FTO
Tensile Stress Relaxation Test Ontology (TSRTO) has developed for representing the tensile stress relaxation testing process, testing equipment requirements, test pieces charactristics, and related testing parameters and their measurement procedure according to DIN EN ISO 10319-1 standard.
Versions info:
V1 developed using BFO+CCO top-level ontologies.
V3 developed using PROV+PMDco top-level ontologies.
Repositories:
GitLab: https://gitlab.com/kupferdigital/process-graphs/relaxation-test
GitHub: https://github.com/HosseinBeygiNasrabadi/Tensile-Stress-Relaxation-Test-Ontology-TSRTO
MatPortal: https://matportal.org/ontologies/TSRTO
IndustryPortal: https://industryportal.enit.fr/ontologies/TSRTO
Tensile test ontology (TTO)
(2024)
Tensile Test Ontology (TTO) has developed for representing the Tensile testing process, testing equipment requirements, test pieces charactristics, and related testing parameters and their measurement procedure according to DIN EN ISO 6892-1 standard.
Versions info:
V2 developed using BFO+CCO top-level ontologies.
V3 developed using PROVO+PMDco top-level ontologies.
Repositories:
GitLab: https://gitlab.com/kupferdigital/process-graphs/tensile-test
GitHub: https://github.com/HosseinBeygiNasrabadi/Tensile-Test-Ontology-TTO-
MatPortal: https://matportal.org/ontologies/TTO
IndustryPortal: https://industryportal.enit.fr/ontologies/TTO
Vickers test ontology (VTO)
(2024)
Vickers Test Ontology (VTO) has developed for representing the Vickers testing process, testing equipment requirements, test pieces charactristics, and related testing parameters and their measurement procedure according to DIN EN ISO 6507-1 standard.
Versions info:
V2 developed using BFO+CCO top-level ontologies.
Repositories:
GitLab: https://gitlab.com/kupferdigital/process-graphs/vickers-hardness-test
GitHub: https://github.com/HosseinBeygiNasrabadi/Vickers-Test-Ontology-VTO-
MatPortal: https://matportal.org/ontologies/VTO
IndustryPortal: https://industryportal.enit.fr/ontologies/VTO
Brinell test ontology (BTO)
(2024)
Brinell Test Ontology (BTO) has developed for representing the Brinell testing process, testing equipment requirements, test pieces charactristics, and related testing parameters and their measurement procedure according to DIN EN ISO 6506-1 standard.
Versions info:
V2 developed using BFO+CCO top-level ontologies.
V3 developed using EMMO+CHAMEO top-level ontologies.
V4 developed using PROVO+PMDco top-level ontologies.
V5 developed using BFO+IOF top-level ontologies.
Repositories:
GitLab: https://gitlab.com/kupferdigital/process-graphs/brinell-hardness-test
GitHub: https://github.com/HosseinBeygiNasrabadi/Brinell-Test-Ontology-BTO-
MatPortal: https://matportal.org/ontologies/BTO
IndustryPortal: https://industryportal.enit.fr/ontologies/BTO
This data article presents a set of primary, analyzed, and digitalized mechanical testing datasets for nine copper alloys. The mechanical testing methods including the Brinell and Vickers hardness, tensile, stress relaxation, and low-cycle fatigue (LCF) testing were performed according to the DIN/ISO standards. The obtained primary testing data (84 files) mainly contain the raw measured data along with the testing metadata of the processes, materials, and testing machines. Five secondary datasets were also provided for each testing method by collecting the main meta- and measurement data from the primary data and the outputs of data analyses. These datasets give materials scientists beneficial data for comparative material selection analyses by clarifying the wide range of mechanical properties of copper alloys, including Brinell and Vickers hardness, yield and tensile strengths, elongation, reduction of area, relaxed and residual stresses, and LCF fatigue life. Furthermore, both the primary and secondary datasets were digitalized by the approach introduced in the research article entitled “Toward a digital materials mechanical testing lab” [1]. The resulting open-linked data are the machine-processable semantic descriptions of data and their generation processes and can be easily queried by semantic searches to enable advanced data-driven materials research.
Due to the advantages of Laser Powder Bed Fusion (PBF-LB), i.e., design freedom and the possibility to manufacture parts with filigree structures, and the considerable amount of knowledge available for 316L in its conventional variant, the mechanical behavior, and related microstructure-property relationships of PBF-LB/316L are increasingly subject of research. However, many aspects regarding the - application-relevant - mechanical behavior at high temperatures are not yet fully understood. Here, we present the results of an experimental study on the LCF behavior of PBF-LB/316L featuring a low defect population, which makes this study more microstructure-focused than most of the studies in the literature. The LCF tests were performed between room temperature (RT) and 600 °C. The mechanical response is characterized by strain-life curves, and hysteresis and cyclic deformation curves. The damage and deformation mechanisms are studied with X-ray computed tomography, and optical and electron microscopy. The PBF-LB/M/316L was heat treated at 450 °C for 4 h, and a hot‑rolled (HR) 316L variant with a fully recrystallized equiaxed microstructure was tested as a reference. Besides, selected investigations were performed after a subsequent heat treatment at 900 °C for 1 h. The PBF-LB/316L exhibits higher cyclic stresses than HR/316L for most of the fatigue life, especially at room temperature. At the smallest strain amplitudes, the fatigue lives of PBF-LB/M/316L are markedly shorter than in HR/316L. The main damage mechanisms are multiple cracking at slip bands (RT) and intergranular cracking (600 °C). Neither the melt pool boundaries nor the gas porosity have a significant influence on the LCF damage mechanism. The cyclic stress-strain deformation behavior of PBF-LB/M/316L features an initial hardening followed by a continuous softening. The additional heat treatment at 900 °C for 1 h led to decreased cyclic stresses, and a longer fatigue life.
The strength of age-hardenable aluminum alloys is based on the controlled formation of nm-sized precipitates, which represent obstacles to dislocation movement. Transmission electron microscopy (TEM) is generally used to identify precipitate types and orientations and to determine their size. This geometric quantification (e.g., length, diameter) is often performed by manual image analysis, which is very time consuming and sometimes poses reproducibility problems. The present work aims at the digital representation of this characterization method by proposing an automatable digital approach. Based on DF-TEM images of different precipitation states of alloy EN AW-2618A, a modularizable digital workflow is described for the quantitative analysis of precipitate dimensions. The integration of this workflow into a data pipeline concept is also presented. The semantic structuring of data allows data to be shared and reused for other applications and purposes, which enables interoperability.
The influence of test temperature and frequency on the fatigue life of the alloy EN AW-2618A (2618A) was characterized. The overaged condition (T61 followed by 1000 h/230 °C) was investigated in load-controlled tests with a stress ratio of R = -1 and two test frequencies (0.2 Hz, 20 Hz) at room temperature and at 230°C, respectively. An increase in the test temperature reduces fatigue life, whereby this effect is more pronounced at lower stress amplitudes. Decreasing the test frequency in tests at high temperatures further reduces the service life.
Following the new paradigm of materials development, design and optimization, digitalization is the main goal in materials sciences (MS) which imposes a huge challenge. In this respect, the quality assurance of processes and output data as well as the interoperability between applications following FAIR (findability, accessibility, interoperability, reusability) principles are to be ensured. For storage, processing, and querying of data in contextualized form, Semantic Web Technologies (SWT) are used since they allow for machine-understandable and human-readable knowledge representations needed for data management, retrieval, and (re)use.
The project ‘platform MaterialDigital’ (PMD) is part of an initiative that aims to bring together and support interested parties from both industrial and academic sectors in a sustainable manner in solving digitalization tasks and implementing digital solutions. Therefore, the establishment of a virtual material data space and the systematization of the handling of hierarchical, process-dependent material data are focused. Core points to be dealt with are the development of agreements on data structures and interfaces implemented in distinct software tools and to offer users specific added values in their projects. Furthermore, the platform contributes to a standardized description of data processing methods in materials research. In this respect, selected MSE methods are ontologically represented which are supposed to serve as best practice examples with respect to knowledge representation and the creation of knowledge graphs used for material data.
Accordingly, this presentation shows the efforts taken within the PMD project to store data in accordance with a testing standard compliant ontological representation of a tensile test of metals at room temperature (ISO 6892-1:2019-11). This includes the path from developing an ontology in accordance with the respective standard up to connecting the ontology and data. The semantic connection of the ontology and data leads to interoperability and an enhanced ability of querying. For further enhanced reusability of data and knowledge from synthesis, production, and characterization of materials, the PMD core ontology (PMDco) was developed as mid-level ontology in the field of MSE. The semantic connection of the tensile test ontology (TTO) to the PMDco leads to enhanced expressivity and interoperability.
Moreover, as a best practice example, generation and acquisition of test data semantically connected to the ontology (data mapping) was realized by applying an electronic laboratory notebook (ELN). Corresponding tensile tests were performed by materials science students at university. This enabled a fully digitally integrated experimental procedure that can be transferred to other test series and experiments. In addition to facilitating the acquisition, analysis, processing, and (re)usability of data, this also raises the awareness of students with respect to data structuring and semantic technologies in the sense of education and training. The entire data pipeline is further seamlessly integrable in a laboratory information management system (LIMS). More specifically, the integration of semantic conceptualization and knowledge graphs may become essential parts in LIMS as this would be very beneficial. Therefore, some first approaches of SWT integration in LIMS will also be presented briefly.