Chao Tang
Research Subjects
Chao Tang has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
- Chengyu Wang
Beijing GAONA Materials and Technology Co., Ltd., Beijing 100081, China
1 shared publication - Jing-Long Qu
Beijing GAONA Materials and Technology Co., Ltd., Beijing 100081, China
1 shared publication - Jinhui Du
Beijing GAONA Materials and Technology Co., Ltd., Beijing 100081, China
1 shared publication - Shaomin Lv
Beijing GAONA Materials and Technology Co., Ltd., Beijing 100081, China
1 shared publication - Weixue Hou
Beijing GAONA Materials and Technology Co., Ltd., Beijing 100081, China
1 shared publication - Wugang Yu
NCS Testing Technology Co., Ltd., Beijing 100081, China
1 shared publication
Latest Publications
- Open Access
Hot Corrosion Behavior and Damage Mechanism on Yield Property of Nickel-Based Superalloy
Ni-based superalloys with enhanced environmental resistance at high temperatures are crucial for advanced gas turbine engines. The new polycrystalline nickel-based superalloy has excellent mechanical properties, but as a low-Cr, high-alloying superalloy, its environmental resistance has never been investigated. The hot corrosion behavior of the nickel-based superalloy under molten salt conditions and its effect on its tensile properties were investigated in this paper. The results showed the following: The diffusion of the Cr, Al, and Ni elements governs the majority of the corrosion process, resulting in the production of an environmentally damaged organization with internal sulfidation and surface oxidation. The Wagner model predicts the inability to form a dense Al oxide scale on the surface because the crucial generation condition of external Al oxides is not met. In addition, the growth stress in the damage scales is the main cause of cracking and spalling in the isothermal corrosion process. Due to the increased local stress concentration brought on by this environmental degradation, the sulfide scale acts as a fracture source, guiding the matrix cracking and influencing the tensile properties of the alloy.
Open AccessHot Corrosion Behavior and Damage Mechanism on Yield Property of Nickel-Based Superalloy
Ni-based superalloys with enhanced environmental resistance at high temperatures are crucial for advanced gas turbine engines. The new polycrystalline nickel-based superalloy has excellent mechanical properties, but as a low-Cr, high-alloying superalloy, its environmental resistance has never been investigated. The hot corrosion behavior of the nickel-based superalloy under molten salt conditions and its effect on its tensile properties were investigated in this paper. The results showed the following: The diffusion of the Cr, Al, and Ni elements governs the majority of the corrosion process, resulting in the production of an environmentally damaged organization with internal sulfidation and surface oxidation. The Wagner model predicts the inability to form a dense Al oxide scale on the surface because the crucial generation condition of external Al oxides is not met. In addition, the growth stress in the damage scales is the main cause of cracking and spalling in the isothermal corrosion process. Due to the increased local stress concentration brought on by this environmental degradation, the sulfide scale acts as a fracture source, guiding the matrix cracking and influencing the tensile properties of the alloy.