Dong Puyun1, Zhao Haidong1, Zhang Jing2, et al. Origination of Fatigue Failure on ADC1 Die Castings in High Speed Train Braking Gas Chamber. [J]. Special Casting & Nonferrous Alloys 30(8):731-733(2010)
Dong Puyun1, Zhao Haidong1, Zhang Jing2, et al. Origination of Fatigue Failure on ADC1 Die Castings in High Speed Train Braking Gas Chamber. [J]. Special Casting & Nonferrous Alloys 30(8):731-733(2010)DOI:
Origination of Fatigue Failure on ADC1 Die Castings in High Speed Train Braking Gas Chamber
Fracture samples were prepared from different positions in practical fatigue failure ADC1 castings
and surface morphology and characteristics of the fracture samples were analyzed by SEM (scanning electron microscope) and EDS (energy dispersive spectrometry) to understand origination of fatigue failure of the castings. The results show that there exists pore with a larger size near surface and congregation of large area oxide film in the casting
which are responsible for the fatigue failure of the castings. In addition
the role of pore and oxide film in the process of failure was described.
关键词
实际压铸件疲劳失效孔洞氧化
Keywords
Practical ADC1 CastingsFatigue FailurePoreOxide Film
College of Mechanical Engineering, North University of China
College of Aeronautics and Astronautics, North University of China
School of Materials Science and Engineering,Advanced Metal Materials and High Technology Research Key Laboratory of Jiangsu Province,Southeast University