Results 251 to 260 of about 3,939,157 (310)

Silicon enhances high temperature oxidation resistance of SIMP steel at 700 °C

, 2020
To understand the role of Si in the oxidation resistance of SIMP steel, steels with three Si levels, 0, 0.58 and 1.22 wt.% (0Si, 06Si and 12Si for short), were tailored to investigate their oxidation behaviors at 700 °C.
Lingling Zhang, Wei Yan, Q. Shi, Yanfen Li, Y. Shan, Ke Yang   +5 more
semanticscholar   +1 more source

Improvement of high temperature oxidation resistance of micro arc oxidation coated AlTiNbMo0.5Ta0.5Zr high entropy alloy

Materials letters (General ed.), 2020
The present work is focused on forming micro arc oxidation (MAO) coating on AlTiNbMo0.5Ta0.5Zr refractory high-entropy alloys (RHEAs). The high temperature oxidation resistance of MAO coated RHEAs was researched by dynamic temperature oxidation and ...
Zhao-Xi Cheng, Wei Yang, Dapeng Xu, Shan-Pei Wu, X. Yao, Yukun Lv, Jian Chen   +6 more
semanticscholar   +1 more source

Tribological performance and high temperature oxidation behaviour of thermal sprayed Ni- and NiCrAlY-based composite coatings

, 2020
Mechanical, tribological performance, and high temperature oxidation behaviour of Ni- and NiCrAlY-based composite coatings with the addition of TiO2/ZnO were investigated. NiCrAlY-based composite coating presents a higher microhardness value than that of
Peiying Shi, Wenzhen Wang, Shanhong Wan, Q. Gao, Huwei Sun, Xiaochun Feng, G. Yi, E. Xie, Qihua Wang   +8 more
semanticscholar   +1 more source

High temperature oxidation of Ni2AlTi

Journal of Materials Science, 1989
The isothermal oxidation process in bulk and powdered Ni2AlTi (L21 structure) has been studied in the temperature range of 600 to 1200° C in air by means of X-ray diffraction and scanning electron microscopy. At 900 and 1200° C, the transient oxides, NiO and TiO2 were formed in the initial stage on the outer surface.
C. C. Lee, P. Shen
openaire   +1 more source

Effect of Al content on high temperature oxidation resistance of AlxCoCrCuFeNi high entropy alloys (x=0, 0.5, 1, 1.5, 2)

Vacuum, 2019
The oxidation behavior of AlxCoCrCuFeNi (x = 0, 0.5, 1, 1.5, 2) high entropy alloys are discussed in this work. Five kinds of HEAs with nominal compositions of are prepared by vacuum arc melting and subjected to isothermal oxidation at 1000 °C for 100 h ...
Yanan Liu, Zheng Chen, Yong Chen, J. Shi, Zheng Wang, Shun Wang, F. Liu   +6 more
semanticscholar   +1 more source

High-temperature oxidation of rhodium

Oxidation of Metals, 1990
The oxidation kinetics of Rh were measured in air at 1 atm. in the temperature range 600–1000°C. The oxidation weight gain proceeds logarithmically at the lower temperatures (600°C, 650°C) followed by a transition to power law behavior at the higher temperatures (≥800°C). The logarithmic growth kinetics result from thickening of a hexagonal Rh2O3 scale.
L. A. Carol, G. S. Mann
openaire   +1 more source

High temperature oxidation and erosion behaviour of HVOF sprayed bi-layer Alloy-718/NiCrAlY coating

Surface & Coatings Technology, 2019
In the present work, bi-layer Alloy-718/NiCrAlY was deposited on grey cast iron substrate by using high velocity oxy-fuel (HVOF) thermal spray coating process. The deposited coating was subjected to microstructure studies, microhardness, high-temperature
Hitesh Vasudev, L. Thakur, A. Bansal, Harmeet Singh, S. Zafar   +4 more
semanticscholar   +1 more source

Microstructure and high temperature oxidation behavior of the Al2O3 CPED coating on TiAl alloy

Journal of Alloys and Compounds, 2020
Al2O3 coating was fabricated on the surface of γ-TiAl alloy via cathodic plasma electrolytic deposition (CPED) technique. The microstructure and the composition of the coating were elaborately characterized. The results revealed that, the uniform coating
S. Wang, F. Xie, Xiang-qing Wu, Tao Lv, Yong Ma   +4 more
semanticscholar   +1 more source

High-temperature oxidation of alloys

Oxidation of Metals, 1970
Some recent developments in the understanding of the oxidation of alloys at elevated temperatures are reviewed, with special reference to binary and ternary alloys upon which many commercial materials are based. Following an initial classification of alloy systems, certain basic principles and their limitations are considered, including factors ...
openaire   +1 more source

Oxide Electrodes at High Temperatures

1985
High temperature fuel cells and electrolysers based on solid yttria stabilized zirconia electrolytes typically operate at 1000°C to reduce polarization losses. Much of the published work on electrode reactions has been carried out on precious metal electrodes (1–4).
G. P. Wirtz, H. S. Isaacs
openaire   +1 more source