Diffusion of hydrogen along the grain boundaries in Ni3Al alloys

Abstract

Abstract: The diffusivity of hydrogen in two Ni3Al alloys (No.1 and No.2) has been measured in the temperature range of 100℃ to 420℃ using an ultrahigh vacuum gaseous permeation technique. The diffusivity data fall into two segments, in which the hydrogen diffusivity adheres to the Arrhenius form, respectively. From the hydrogen diffusivity, it is conjectured that the hydrogen diffusivity reflects the hydrogen transportation along the grain boundaries at lower temperature and the hydrogen transportation in the lattice at higher temperature. The intergranular fracture of Lit-type intermetallics induced by hydrogen at relative low temperature results from hydrogen transportation along the grain boundaries and not in the lattice.

Key words:

Xiaoying CHENG, Xiaojing WAN, Qiuyun WU, Xiukui SUN. Diffusion of hydrogen along the grain boundaries in Ni3Al alloys[J]. J Mater Sci Technol, 2001, 17(02): 207-210.

[1]	Hui Liu, Rui Liu, Ihsan Ullah, Shuyuan Zhang, Ziqing Sun, Ling Ren, Ke Yang. Rough surface of copper-bearing titanium alloy with multifunctions of osteogenic ability and antibacterial activity [J]. J. Mater. Sci. Technol., 2020, 48(0): 130-139.
[2]	H.F. Zhang, H.L. Yan, H. Yu, Z.W. Ji, Q.M. Hu, N. Jia. The effect of Co and Cr substitutions for Ni on mechanical properties and plastic deformation mechanism of FeMnCoCrNi high entropy alloys [J]. J. Mater. Sci. Technol., 2020, 48(0): 146-155.
[3]	Zhaozhao Wang, Jia Li, Junjun Xu, Jinhua Huang, Ye Yang, Ruiqin Tan, Guofei Chen, Xingzhong Fang, Yue Zhao, Weijie Song. Robust ultrathin and transparent AZO/Ag-SnO_x/AZO on polyimide substrate for flexible thin film heater with temperature over 400 °C [J]. J. Mater. Sci. Technol., 2020, 48(0): 156-162.
[4]	J.J.J. Nivas, E. Allahyari, A. Vecchione, Q. Hao, S. Amoruso, X. Wang. Laser ablation and structuring of CdZnTe with femtosecond laser pulses [J]. J. Mater. Sci. Technol., 2020, 48(0): 180-185.
[5]	Y.Z. Tian, Y.P. Ren, S. Gao, R.X. Zheng, J.H. Wang, H.C. Pan, Z.F. Zhang, N.T suji, G.W. Qin. Two-stage Hall-Petch relationship in Cu with recrystallized structure [J]. J. Mater. Sci. Technol., 2020, 48(0): 31-35.
[6]	Heng Chen, Zifan Zhao, Huimin Xiang, Fu-Zhi Dai, Wei Xu, Kuang Sun, Jiachen Liu, Yanchun Zhou. High entropy (Y_0.2Yb_0.2Lu_0.2Eu_0.2Er_0.2)₃Al₅O₁₂: A novel high temperature stable thermal barrier material [J]. J. Mater. Sci. Technol., 2020, 48(0): 57-62.
[7]	Enze Zhou, Jianjun Wang, Masoumeh Moradi, Huabing Li, Dake Xu, Yuntian Lou, Jinheng Luo, Lifeng Li, Yulei Wang, Zhenguo Yang, Fuhui Wang, Jessica A. Smith. Methanogenic archaea and sulfate reducing bacteria induce severe corrosion of steel pipelines after hydrostatic testing [J]. J. Mater. Sci. Technol., 2020, 48(0): 72-83.
[8]	Jiangguli Peng, Wenbin Liu, Jiangtao Zeng, Liaoying Zheng, Guorong Li, Anthony Rousseau, Alain Gibaud, Abdelhadi Kassiba. Large electromechanical strain at high temperatures of novel <001> textured BiFeGaO₃-BaTiO₃ based ceramics [J]. J. Mater. Sci. Technol., 2020, 48(0): 92-99.
[9]	Li Zhang, Zhong Xu, Jia Han, Lei Liu, Cong Ye, Yi Zhou, Wen Xiong, Yanxin Liu, Gang He. Resistive switching performance improvement of InGaZnO-based memory device by nitrogen plasma treatment [J]. J. Mater. Sci. Technol., 2020, 49(0): 1-6.
[10]	Xiao-Yuan Wang, Yu-Fei Wang, Cheng Wang, Shun Xu, Jian Rong, Zhi-Zheng Yang, Jin-Guo Wang, Hui-Yuan Wang. A simultaneous improvement of both strength and ductility by Sn addition in as-extruded Mg-6Al-4Zn alloy [J]. J. Mater. Sci. Technol., 2020, 49(0): 117-125.
[11]	Jing Xu, Zhouping Wang, Yongfa Zhu. Highly efficient visible photocatalytic disinfection and degradation performances of microtubular nanoporous g-C₃N₄ via hierarchical construction and defects engineering [J]. J. Mater. Sci. Technol., 2020, 49(0): 133-143.
[12]	Zhiliang Jin, Lijun Zhang. Performance of Ni-Cu bimetallic co-catalyst g-C₃N₄ nanosheets for improving hydrogen evolution [J]. J. Mater. Sci. Technol., 2020, 49(0): 144-156.
[13]	Zhuowei Tan, Liuyang Yang, Dalei Zhang, Zhenbo Wang, Frank Cheng, Mingyang Zhang, Youhai Jin. Development mechanism of internal local corrosion of X80 pipeline steel [J]. J. Mater. Sci. Technol., 2020, 49(0): 186-201.
[14]	Ying-Jun Gao, Qian-Qian Deng, Zhe-yuan Liu, Zong-Ji Huang, Yi-Xuan Li, Zhi-Rong Luo. Modes of grain growth and mechanism of dislocation reaction under applied biaxial strain: Atomistic and continuum modeling [J]. J. Mater. Sci. Technol., 2020, 49(0): 236-250.
[15]	Yanke Liu, Yulong Cai, Chenggang Tian, Guoliang Zhang, Guoming Han, Shihua Fu, Chuanyong Cui, Qingchuan Zhang. Experimental investigation of a Portevin-Le Chatelier band in Ni‒Co-based superalloys in relation to γʹ precipitates at 500 ℃ [J]. J. Mater. Sci. Technol., 2020, 49(0): 35-41.

Diffusion of hydrogen along the grain boundaries in Ni3Al alloys

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments