Results 61 to 70 of about 33,730 (303)

Machinability and tool wear mechanism in the high-speed milling of TiAl alloys with different microstructures

Journal of Materials Research and Technology
Titanium aluminides (TiAl) are potential candidates for replacing nickel-based superalloys in aircraft engines. This is due to TiAl alloys’ superiority in high-temperature strength, low density, and corrosion resistance.
Luqiang Tu, Yu Zhang, Qiyuan Yu, Xin Wang, Chongrui Wang, Zhanjie Zhang, Lujun Huang, Lin Geng, Yuyong Chen, Jiong Zhang   +9 more
doaj   +1 more source

Electrochemical behavior of Sn-Zn alloys with different grain structures in chloride-containing solutions [PDF]

, 2017
In the present research the electrochemical behavior of the Sn-Zn alloys (Sn-1 wt.%Zn, Sn-4 wt.%Zn and 8.9 wt.%Zn) in 3% NaCl solution is analyzed using potentiodynamic cyclic polarization measurements and Electrochemical Impedance Spectroscopy (EIS ...
Ares, Alicia Esther, Kociubczyk, Alex Iván, Mendez, Claudia Marcela, Rozicki, Roberto S., Scheiber, Verónica L.   +4 more
core   +1 more source

Alloying elements partitioning in TiAl-Ru intermetallic alloys

Intermetallics, 1999
Abstract Ruthenium additions are of interest for increasing low-pH resistance as well as improving mechanical properties of TiAl. Two phase Ti-48 at% Al-0.5 at% Ru was investigated. The partitioning behaviour of alloying elements in this condition was investigated by atom-probe field-ion microscopy (AP-FIM).
Kim, S, Larson, D, Smith, G
openaire   +2 more sources

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Dry Sliding Tribology of γ-TiAl-Based Alloys

Crystals
Incorporating TiAl alloys in engine applications offers benefits including reduced fuel consumption and improved efficiency. However, understanding the wear behaviour of these materials is an important consideration due to their use in harsh environments
Steven Magogodi, Maria Ntsoaki Mathabathe, Charles Witness Siyasiya, Amogelang Sylvester Bolokang, Michael Oluwatosin Bodunrin, Mbavhalelo Maumela   +5 more
doaj   +1 more source

Microstructural and XRD analysis and study of the properties of the system Ti-TiAl-B4C processed under different operational conditions [PDF]

, 2018
High specific modulus materials are considered excellent for the aerospace industry. The system Ti-TiAl-B4C is presented herein as an alternative material. Secondary phases formed in situ during fabrication vary depending on the processing conditions and
Arévalo Mora, Cristina María, Kitzmantel, Michael, Montealegre-Meléndez, Isabel, Neubauer, Erich, Pérez-Soriano, Eva María   +4 more
core   +2 more sources

Thermo‐Fluorescent Bactericidal Quantum Dots Based Smart Multifunctional Textiles via Molecular Surface Engineering and 3D‐Printed Interlocked Architectures

Advanced Healthcare Materials, EarlyView.
A versatile approach is presented for fabricating smart multifunctional textiles by integrating thermo‐fluorescent carbon dot/polymer nanocomposite coatings with 3D‐printed interlocked architectures. The fabrics exhibit temperature‐responsive fluorescence, durable hydrophobicity, strong antibacterial and antioxidant activity, and enhanced UV protection.
Poushali Das, Sayan Ganguly, Parham Khoshbakht Marvi, Misha Muthalali, Fatemeh Parniani, Shiza Hassan, Xiaowu (Shirley) Tang, Seshasai Srinivasan, Amin Reza Rajabzadeh   +8 more
wiley   +1 more source

Aluminium evaporation during ceramic crucible induction melting of titanium aluminides [PDF]

, 2013
Melting TiAl based alloys in ceramic crucibles often leads to chemical contamination, alloy heterogeneity and non-metallic inclusions. The severity of such phenomena usually depends on the nature of crucible materials, the melting stock composition and ...
Barbosa, J., Gomes, Fernando Manuel Duarte, Ribeiro, Carlos Silva   +2 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Modeling of TiAl Alloy Grating by Investment Casting

Metals, 2015
The investment casting of TiAl alloys has become the most promising cost-effective technique for manufacturing TiAl components. This study aimed to investigate a series of problems associated with the investment casting of TiAl alloys.
Yi Jia, Shulong Xiao, Jing Tian, Lijuan Xu, Yuyong Chen   +4 more
doaj   +1 more source