Study of Hydrogen Permeation and Diffusion in 690 Alloy

Wang Chun; Wang Yongli; Fu Shengwei; Xiong Liangyin; Zhang Junping; Liu Shi

doi:10.13832/j.jnpe.2017.02.0093

Volume 38 Issue 2

Feb. 2025

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Wang Chun, Wang Yongli, Fu Shengwei, Xiong Liangyin, Zhang Junping, Liu Shi. Study of Hydrogen Permeation and Diffusion in 690 Alloy[J]. Nuclear Power Engineering, 2017, 38(2): 93-97. doi: 10.13832/j.jnpe.2017.02.0093

Citation:

Wang Chun, Wang Yongli, Fu Shengwei, Xiong Liangyin, Zhang Junping, Liu Shi. Study of Hydrogen Permeation and Diffusion in 690 Alloy[J]. Nuclear Power Engineering, 2017, 38(2): 93-97. doi: 10.13832/j.jnpe.2017.02.0093

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Study of Hydrogen Permeation and Diffusion in 690 Alloy

doi: 10.13832/j.jnpe.2017.02.0093

1. Nuclear power Institute of China, Chengdu, 610213, China;
2. Institute of Metal Research, Chinese Academy of Science, Shenyang, 110016, China

Received Date: 2016-10-21
Rev Recd Date: 2016-12-15

Available Online: 2025-02-09

Abstract

Abstract

The diffusivity and permeability of hydrogen in Inconel 690 alloy were investigated using an ultra-high vacuum gaseous permeation technique.The curves of hydrogen permeation of 690 alloy materials with different thickness over the temperature range of 300~500℃ were gained,and the effects of thickness of 690 alloy on the hydrogen diffusivity（D） and permeability（P） were discussed.The results indicated that the diffusivity and permeability of hydrogen with the change of temperature in Inconel 690 alloy were conformed to Arrhenius relationship in the extent experimental temperature range.The hydrogen diffusivity increased with the increasing of samples thickness and equal to the actual body diffusivity of Inconel 690 alloy,and the hydrogen permeability kept constant with the increasing of sample thickness.
- Inconel 690 alloy,
- Hydrogen permeation,
- Hydrogen diffusion,
- Temperature,
- Sample thickness