Results 31 to 40 of about 1,330 (265)

Microstructure and shear property of high-temperature brazing of TiAl alloy and 316L stainless steel with a Ni-based amorphous filler

Frontiers in Materials, 2022
High-quality joining of TiAl alloy to stainless steel is of great significance to the aerospace field. However, the hybrid structure of TiAl and 316L always suffers from insufficient strength when serving at elevated temperatures.
Shun Guo, Shun Guo, Xiaopeng Li, Xiaopeng Li, Kewei Dong, Kewei Dong, Jieren Gu, Jieren Gu, Qi Zhou, Qi Zhou, Kehong Wang, Kehong Wang   +11 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Positive effects of pre-oxidation on high temperature oxidation behavior of TiAl composites with multilayered structure

Journal of Materials Research and Technology
In order to study the pre-oxidation on high temperature oxidation behavior of TiAl composites with high-efficiency, the TiAl composites with multilayered structure were successfully prepared via spark plasma sintering (SPS) by introducing 0.5 wt% BN, 0.5 
Junqin Wu, Yupeng Wang, Genhua Zeng, Xiaohong Wang, Lei Li, Meng Li, Tengfei Ma   +6 more
doaj   +1 more source

Interaction between γ-TiAl alloy and zirconia [PDF]

China Foundry, 2008
: A study on the interaction between TiAl alloy and zirconia was carried out in argon atmosphere. The micrographic observations of the cross-section perpendicular to the interface were obtained using a scanning electron microscope with a dedicated energy
Liu Aihui, Li Bangsheng, Nan Hai
doaj  

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

Mechanical Behaviour of an Al₂O₃ Dispersion Strengthened γTiAl Alloy Produced by Centrifugal Casting

Metals, 2020
γ-TiAl has been a hot topic of research for more than a few decades now, since it is a potential candidate for high temperature structural applications.
Daniela Pilone, Giovanni Pulci, Laura Paglia, Avishek Mondal, Francesco Marra, Ferdinando Felli, Andrea Brotzu   +6 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Exploring the brittle-to-ductile transition and microstructural responses of γ−TiAl alloy with a crystal plasticity model incorporating dislocation and twinning

Materials & Design
γ−TiAl alloy, with its high specific strength and creep resistance, is ideal for aerospace engines and gas turbines, but its brittleness poses significant manufacturing and processing challenges.
Hao Wu, Yida Zhang, Dong Lu, Xiufang Gong, Liming Lei, Hong Zhang, Yongjie Liu, Qingyuan Wang   +7 more
doaj   +1 more source

High Nb–TiAl Intermetallic Blades Fabricated by Isothermal Die Forging Process at Low Temperature

Metals, 2020
In this study, the isothermal die forging process of high Nb–TiAl (Ti-44Al-8Nb-0.2W-0.2B-Y, at.%) alloy blades was simulated using the ABAQUS V6.11 software and the blades were fabricated successfully.
Xiaopeng Wang, Wenchen Xu, Peng Xu, Haitao Zhou, Fantao Kong, Yuyong Chen   +5 more
doaj   +1 more source