A5073873874- Microstructure and Mechanical Properties of Steels
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- High Temperature Alloys and Creep
- Metallurgy and Material Forming
- Metal Forming Simulation Techniques
- nanoparticles nucleation surface interactions
- Fatigue and fracture mechanics
- Shape Memory Alloy Transformations
- Composite Material Mechanics
- Numerical methods in engineering
- Metal Alloys Wear and Properties
- Advanced Thermodynamics and Statistical Mechanics
- Aluminum Alloy Microstructure Properties
- Railway Engineering and Dynamics
- Mechanical stress and fatigue analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- High-Velocity Impact and Material Behavior
- Elasticity and Material Modeling
- Adhesion, Friction, and Surface Interactions
- Mechanical Behavior of Composites
- Metallurgical Processes and Thermodynamics
- Solidification and crystal growth phenomena
- Aluminum Alloys Composites Properties
- MXene and MAX Phase Materials
Montanuniversität Leoben
2015-2024
University of Applied Sciences Upper Austria
2024
GlaxoSmithKline (Germany)
2022
Stifterverband
2019
Walter de Gruyter (Germany)
2019
Baidu (China)
2019
Technische Universität Braunschweig
2019
Friedrich-Alexander-Universität Erlangen-Nürnberg
2017
Max Planck Institute of Colloids and Interfaces
2005-2013
Max Planck Society
2005-2013
Intermetallic titanium aluminides based on the ordered γ‐TiAl phase have gained increasing interest as innovative high‐temperature light‐weight structural materials. They found application in aerospace and automotive industries are still subject of worldwide research development activities. Their attractive properties perfectly match engine manufacturers’ demands. This review, bridges gap from TNM alloy through characterization with sophisticated ex situ methods, engineering properties,...
The fit of fracture strength data brittle materials (Si(3)N(4), SiC, and ZnO) to the Weibull normal distributions is compared in terms Akaike information criterion. For Si(3)N(4), distribution fits better than distribution, but for ZnO result just opposite. In case difference not large enough make a clear distinction between two distributions. There sufficient evidence show that always preferred other distributions, uncritical use questioned.
Many biological materials, such as glass sponges, nacre or bone have a lamellar structure. While it is well known that weak interfaces between lamellae may deflect cracks and, thus, increase the toughness, we analyze influence of periodic variations in Young's modulus. Even without interfaces, ratio 5 maximum and minimum modulus can be sufficient to stop crack vicinity stiffness minimum.
This review article attempts to explain TRIP generally and its appearance in different materials. Continuum mechanics formulations are mainly used this phase change phenomenon. An overview is given of the published literature which often not very easily accessible. Technological aspects presented, such as constitutive equations materials showing TRIP. Aspects material selection future design also treated. contains 315 references.
Abstract Many biological materials, such as bone, nacre, or certain deep‐sea glass sponges, have a hierarchical structure that makes them stiff, tough, and damage tolerant. Different structural features contributing to these exceptional properties been identified, but common motif of the periodic arrangement components with strongly varying stiffness, has not gained sufficient attention. Here we show periodicity material is one dominant reasons for high fracture resistance structures their...
We study the evolution of systems described by internal variables. After introduction thermodynamic forces and fluxes, both dissipation potential are defined. Then, principle maximum (PMD) a minimum for developed in variational formulation. Both principles related to each other. Several cases shown where lead same equations However, also counterexamples reported such an equivalence is not valid. In this case, extended PMD can be formulated.
Results of a systematic study are presented to review various effects crystal size on the martensitic phase transformations in nanocrystalline NiTi shape memory alloys. The transformation temperatures and transformed volume fraction strongly decrease with decreasing grain less than about 100 nm. Transformation martensite is not observed grains smaller critical 50 nanograins significantly impact morphology B19′ composed (001) compound twins that occur at an atomic scale violate well...
The collective self-organization of cells into three-dimensional structures can give rise to emergent physical properties such as fluid behavior. Here, we demonstrate that tissues growing on curved surfaces develop shapes with outer boundaries constant mean curvature, similar the energy minimizing forms liquids wetting a surface. amount tissue formed depends shape substrate, more being deposited highly concave surfaces, indicating mechano-biological feedback mechanism. Inhibiting...
For mechanically dominated load profiles, nitrides are preferred as the base material for structural and functional hard coatings, while oxide-based materials offer better protection against high-temperature corrosion (such oxidation). Thus, when mechanical thermal loads combined, used should also have excellent stability temperature oxidation. How to develop such nitride that can withstand both high is focus of this review article. This done primarily with help experimental theoretical...
An extremal principle is formulated for thermodynamic systems near equilibrium subjected to various external conditions. It shown that the describes unambiguously kinetics of system and replaces classical phenomenological equations. The global formulation makes it possible i) introduce discrete characteristic parameters proper description state evolution system, ii) take into account constraints amongst local or character iii) derive equations parameters. These facts turn an effective tool...