Paper Titles
Development of Workpiece Positioning System for Machining Micro-Pits of Hip Implant
p.213
Elimination of Bond Pad Crack through Application of Initial Force via Force Profiling on Sensitive Bond Pads
p.223
Modeling and Investigation of 3D Printing Parameters on the Melt Flow Behavior of Polylactic Acid
p.229
Application of Geopolymer Technology and Pile Raft Foundation in a Soil, Review Study
p.237
Enhancing the Sustainability of Road Projects Using Innovative Soil Stabilization Solutions
p.245
Sustainability Assessment of Concrete vs. Steel Structural Systems: A Case Study on a Two-Story School Building
p.253
Structural Damage Prediction of a Concrete and Steel Bridge Using Acceleration Signal Processing and Artificial Intelligence Algorithms
p.263
Welding Procedure Effect on the Hydrogen Diffusion Behavior and Hydrogen Embrittlement Susceptibility of Welded Joint for Hydrogenation Reactor
p.269
Geological, Geophysical and Hydrological Controls on Sinkhole Formation in Saudi Arabia: Linking Karst Processes to Anthropogenic Impacts
p.277

Welding Procedure Effect on the Hydrogen Diffusion Behavior and Hydrogen Embrittlement Susceptibility of Welded Joint for Hydrogenation Reactor

Article Preview

Abstract:

This study employs hydrogen permeation tests, slow-strain-rate tensile tests, and Charpy impact tests to investigate how the welding process and PWHT influence hydrogen diffusion behavior and hydrogen embrittlement susceptibility of welded joint. The research results indicate: The microstructure of all regions of the welded joint consist of granular bainite, MA islands, and precipitated carbides, carbides are mainly M23C6, M7C3, M2C, and M6C types. These carbides act as irreversible hydrogen traps and are the primary reason for the reduced hydrogen diffusion coefficient in the material. The heterogeneous microstructure of the weld metal causes direction-dependent hydrogen diffusivity. PWHT also influence hydrogen embrittlement susceptibility. The findings of this study can provide theoretical guidance for optimizing welding procedures in the fabrication of hydrogenation reactors.

You might also be interested in these eBooks
Modelling and Advanced Approaches in Construction, Mechanical Engineering, Precision Manufacturing, Aerospace Engineering and Robotics View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 935)

Pages:

269-276

DOI:

https://doi.org/10.4028/p-2jJvA2

Citation:

Cite this paper

Online since:

April 2026

Authors:

Guang Xu Cheng*, Wei Chen Song, Song Yan Hu, Sheng Wen Tu, Hai Jun Hu

Keywords:

2.25Cr-1Mo-0.25V, Hydrogen Embrittlement Sensitivity, Welded Joint

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2026 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Li Q, Cheng G, Qin M, et al. Research on Carbide Characteristics and Their Influence on the Properties of Welding Joints for 2.25Cr1Mo0.25V Steel[J]. Materials, 2021, 14(4):891.

DOI: 10.3390/ma14040891

Google Scholar

[2] INTERNATIONAL A. A387/A387M-11 Standard specification for pressure vessel, alloy steel, Chromium-Moltbdenim [S]. West Conshohocken, United State. 2011.

Google Scholar

[3] Cardenas A L, Silva R O, Eckstein C B, et al. Hydrogen effect on 2.25 Cr–1Mo–0.25 V bainitic steel under aging heat treatment[J]. International Journal of Hydrogen Energy, 2018, 43(33): 16400-10.

DOI: 10.1016/j.ijhydene.2018.07.047

Google Scholar

[4] Wang Y, Cheng G, Qin M, et al. Effect of high temperature deformation on the microstructure, mechanical properties and hydrogen embrittlement of 2.25 Cr–1Mo-0.25 V steel[J]. International Journal of Hydrogen Energy, 2017, 42(38): 24549-59.

DOI: 10.1016/j.ijhydene.2017.07.237

Google Scholar

[5] Devanathan M A V, Stachurski Z. The adsorption and diffusion of electrolytic hydrogen in palladium[J]. Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1962, 270(1340): 90-102.

DOI: 10.1098/rspa.1962.0205

Google Scholar

[6] Dong C F, Liu Z Y, Li X G ,et al. Effects of hydrogen -charging on the susceptibility of X100 pipeline steel to hydrogen-induced cracking [J]. International Journal of Hydrogen Energy, 2009, 34(24):9879-84

DOI: 10.1016/j.ijhydene.2009.09.090

Google Scholar

[7] McBreen J, Nonis L, Beck W. A method for determination of the permeation rate of hydrogen through metal membranes[J]. Journal of the electrochemical society, 1966, 113(11): 1218.

DOI: 10.1149/1.3087209

Google Scholar

[8] Yen S K, Huang I B. Critical hydrogen concentration for hydrogen-induced blistering on AISI 430 stainless steel[J]. Materials Chemistry and Physics, 2003, 80(3): 662-6.

DOI: 10.1016/s0254-0584(03)00084-1

Google Scholar