Results 51 to 60 of about 35,956 (306)

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

On high-speed turning of a third-generation gamma titanium aluminide [PDF]

, 2012
Gamma titanium aluminides are heat-resistant intermetallic alloys predestined to be employed in components suffering from high mechanical stresses and thermal loads.
A Beranoagirre, AL Mantle, AL Mantle, ARC Sharman, ARC Sharman, CM Austin, Dieter Lung, DK Aspinwall, E Uhlmann, EA Loria, EA Loria, Fritz Klocke, J Aguilar, K Weinert, K Weinert, Luca Settineri, M Roth, Martin Arft, Paolo Claudio Priarone, SA Bentley, T Tetsui   +20 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

Fracture toughness of TiAl-Cr-Nb-Mo alloys produced via centrifugal casting [PDF]

Fracture toughness of a TiAl base intermetallic alloy has been investigated at room temperature.The Ti-48Al-2.5Cr-0.5Nb-2Mo (at. %) alloy produced via centrifugal casting exhibits fine nearly lamellar microstructures, consisting mainly of fine lamellar ...
Brotzu, A., Felli, F., Pilone, D.
core   +1 more source

Breast tumor diagnosis in digital mammograms [PDF]

, 2019
Breast cancer has been classified as the most common cancer in most part of the world [1]. Breast cancer is caused by the growth of the abnormal cells in the breast. Breast cancer not only develops in women but also on men.
Gaik Tay, Kim, Huong, Audrey, Yang Lim, Xiang   +2 more
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 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

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source