Results 61 to 70 of about 7,320 (303)

Advancement of the Directional Solidification process of a NiAl-Alloy

, 2000
The directional solidification process of high temperature intermetallic alloys was investigated and discussed for a hypo eutectic NiAl-Cr-alloy. An unexpected solidification behavior was found which may be peculiar to the selected alloy group.
F. Scheppe, I. Wagner, P.R. Sahm
core   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Microstructure evolution and mechanical behaviors of alumina-based ceramic shell for directional solidification of turbine blades

Journal of Materials Research and Technology, 2019
The high temperature mechanical behaviors of Al2O3-based ceramic shell for the directional solidification of turbine blades were investigated. Isothermal uniaxial compression tests of ceramic shell samples were conducted on a Gleeble-1500D mechanical ...
Zilin Xu, Jiangwei Zhong, Xianglin Su, Qingyan Xu, Baicheng Liu   +4 more
doaj   +1 more source

Directional Solidification of AlSi Alloys with Fe Intermetallic Phases

, 2014
Directional solidification technique is an important research instrument to study solidification of metals and alloys. In the paper the model of directional solidification in special Artemis-3 facility was presented.
Mikołajczak, P., Mikołajczak, Piotr, Ratke, Lorenz, Ratke, L.   +3 more
core   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Influence of directional solidification parameters on the amount of quasicrystalline phase of an AlCuFe alloy

Journal of Alloys and Metallurgical Systems
In this work, a casting processing route via unidirectional solidification is proposed, where the severity of cooling can be increased to maximize the amount of quasicrystalline phase.
Thayza Pacheco dos Santos Barros, Rafael E. Caluête, Aline Karla Barbosa da Silva, Danniel Ferreira de Oliveira, Francisco Riccelly Pereira Feitosa, Bruno Alessandro Silva Guedes de Lima, Danielle Guedes de Lima   +6 more
doaj   +1 more source

Dynamics of low anisotropy morphologies in directional solidification [PDF]

Physical Review E, 2002
12 pages, 17 figures, submitted to Phys. Rev.
Utter, B., Bodenschatz, E. ; https://orcid.org/0000-0002-2901-0144   +1 more
openaire   +5 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Mushy Zone Morphology Calculation with Application of CALPHAD Technique

Metals, 2017
Mushy zone morphology in AlSiMn alloys was studied using directional solidification, and the CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) technique was applied for thermodynamic calculations.
Piotr Mikolajczak, Amber Genau, Lorenz Ratke   +2 more
doaj   +1 more source

Directional solidification: Transition from cells to dendrites [PDF]

Physical Review Letters, 1989
The evolution of cells and dendrites on a solidification front is analyzed numerically by a Green's-function method. We obtain a consistent picture of the pattern-forming processes in the whole experimentally accessible range of the phase-diagram cell spacing versus growth rate.
Müller-Krumbhaar, H., Misbah, C., Saito, Y.   +2 more
openaire   +3 more sources