Results 21 to 30 of about 17,377 (263)

Review of hot corrosion of thermal barrier coatings of gas turbine

Zhongguo Jianchuan Yanjiu, 2017
The review was done in order to make clear the problem of the hot corrosion of the Thermal Barrier Coatings(TBCs)during gas turbine serving. This paper summarizes the factors resulting from the hot corrosion of TBCs during turbine service and classifies ...
LIU Yongbao, LIU Jianhua, YU Youhong, HE Xing, LIU Li   +4 more
doaj   +1 more source

Sulfidation behavior in low-temperature hot corrosion of single crystal superalloy DD421 without SO_x atmosphere

Cailiao gongcheng, 2021
The hot corrosion behavior of the second generation nickel base single crystal superalloy DD421 coated with 90%(mass fraction) Na2SO4+10%NaCl (molten at 750 ℃) and pure Na2SO4 (solid state at 750 ℃) was investigated by salt coating method in 750 ...
SONG Peng, JIANG Xiang-wei, WU Jun-jie, LU Yu-zhang, DONG Jia-sheng, LOU Lang-hong   +5 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Microstructure and Properties of Seamless Steel Pipe Gr.6 after Rolling and Normalizing [PDF]

Teshugang
The microstructure morphology， low-temperature performance， and corrosion resistance of hot-rolled and normalized condition Gr.6 steel pipes were analyzed using optical microscopy， scanning electron microscopy， transmission electron microscopy ...
Zhao Bo, Wang Shanbao, Xie Degang, Yuan Qin, Ai Fangfang, Wang Xixiang, Guo Jinmei   +6 more
doaj   +2 more sources

Evaluation of Normal and Nanolayer Composite Thermal Barrier Coatings in Fused Vanadate-Sulfate Salts at 1000°C

Advances in Materials Science and Engineering, 2013
Hot corrosion behavior of yttria stabilized zirconia (YSZ), YSZ/normal Al2O3, and YSZ/nano-Al2O3 coatings was investigated in the presence of molten mixture of Na2SO4 + V2O5 at 1000°C.
Mohammadreza Daroonparvar, Muhamad Azizi Mat Yajid, Noordin Mohd. Yusof, Hamid Reza Bakhsheshi-Rad, Mohammad Sakhawat Hussain, Esah Hamzah   +5 more
doaj   +1 more source

Influence of Pre-Oxidation on High Temperature Oxidation and Corrosion Behavior of Ni-Based Aluminide Coating in Na2SO4 Salt at 1050°C

Frontiers in Materials, 2021
Aluminide coating is prepared on K438 Ni-based superalloy by pack cementation. The hot corrosion test of as-received and pre-oxidation aluminide coating in Na2SO4 salt are carried out at 1050°C.
Qing Li, Defeng Zhang, Peng Song, Zhenhua Li, Ruixiong Zhai, Chen Hua, Jiansheng Lu   +6 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Preparation and research of structure-gradient and corrosion-resistant aluminium coatings on steel surface

Cailiao gongcheng, 2019
In order to control the composition and microstructure of corrosion-resistant aluminum coatings, a layer of pre-coating was deposited on Q235 steel surface by magnetron sputtering, and then corrosion-resistant aluminum coating with a certain thickness ...
WANG Yao, ZHAO Xue-ni, DANG Xin-an, YANG Pu, WEI Sen-sen, ZHANG Wei-gang, LIU Qing-yao   +6 more
doaj   +1 more source

Pitting Corrosion of Hot-Dip Galvanized Coatings [PDF]

Materials, 2020
Lead (Pb) addition to hot-dip galvanizing (HDG) baths affects the physical characteristics of zinc coatings and is also useful to protect kettles. The influence of lead additions on both corrosion rate and morphology as well as on structure of zinc coating is less investigated.
Agnieszka Królikowska, Leszek Komorowski, Pier Luigi Bonora   +2 more
openaire   +2 more sources

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source