The main researches include (1) the evolution mechanism of the hydrogen performance of materials under extreme environments such as ultra-high pressure, extremely low temperature and ocean, (2) the prevention and regulation methods of high pressure hydrogen damage, (3) the mechanism of hydrogen leakage, diffusion, spontaneous combustion and explosion, (4) the non-destructive testing of hydrogen energy equipment, intelligent monitoring of service status and safe operation and maintenance technology, etc. We have the 140MPa high pressure hydrogen environment durability test equipment, 140MPa seals and sealing materials hydrogen environment testing equipment and other special devices.
Mechanism and regulation of metallic hydrogen damage
Laws of hydrogen leakage, combustion and explosion
Representative research achievements
1. Zhengli Hua, Bai An*, Takashi Iijima, Chaohua Gu, Jinyang Zheng. The finding of crystallographic orientation dependence of hydrogen diffusion in austenitic stainless steel by scanning Kelvin probe force microscopy. Scripta Materialia, 2017, 131: 47-50.
2. Zhengli Hua, Shengyi Zhu, Bai An, Takashi Iijima, Chaohua Gu, Jinyang Zheng*. The finding of hydrogen trapping at phase boundary in austenitic stainless steel by scanning Kelvin probe force microscopy. Scripta Materialia, 2019, 162: 219-222.
3. Juan Shang, Weifeng Chen, Jinyang Zheng, Zhengli Hua*, Lin Zhang, Chengshuang Zhou, Chaohua Gu. Enhanced hydrogen embrittlement of low-carbon steel to natural gas/hydrogen mixtures. Scripta Materialia, 2020, 189: 67-71.
4. Kai Ma, Zhengli Hua*, Chaohua Gu, Zekun Zhang, Sheng Ye. Effects of crack position on fatigue life of large seamless storage vessels made of 4130X for hydrogen refueling station. International Journal of Hydrogen Energy, 2019, 44(40): 22559-22568.
5. Jinxing Guo, Lijing Xing, Zhengli Hua, Chaohua Gu, Jinyang Zheng. Optimization of compressed hydrogen gas cycling test system based on multi-stage storage and self-pressurized method. International Journal of Hydrogen Energy, 2016, 46: 16306-16315.
