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| EFFECTS OF DISTRIBUTION OF HYDROGEN CONCENTRATION ON DISBONDING FOR STAINLESS STEEL WELD OVERLAY |
| Xu Ying; Yuan Luping; Lin Dongliang(T. L. Lin)(Shanghai Jiao Tong Univ.)Lin Jianhong; Wang Zhengdong; Wu Dongdi(East China Univ. of Chemical Technology) |
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Abstract The finite element method was adopted to compute the distribution of hydrogen concentration inweld overlay structures. Comparison between the computed results for the hydrogen diffusion behaviour under electrolytic hydrogen charging and those under gaseous hydrogen charging in autoclave was carriedout. The results showed that in both cases the peak hydrogen concentrations near the fusion line aresimilar and can be reached in a shorter time under electrolytic hydrogen charging.The factors affecting hydrogen-induced disbonding were studied through a serieS of theoretical computation, and the influence of different specimen conditions and different test conditions were analyzed.The results showed that the increase of current density, the prolongation of charging time and/or thethinning of the base metal will inerease the peak hydrogen concentration and enhance the tendency ofdisbonding.
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Received: 25 April 1995
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Cite this article:
Xu Ying; Yuan Luping; Lin Dongliang(T. L. Lin)(Shanghai Jiao Tong Univ.)Lin Jianhong; Wang Zhengdong; Wu Dongdi(East China Univ. of Chemical Technology). EFFECTS OF DISTRIBUTION OF HYDROGEN CONCENTRATION ON DISBONDING FOR STAINLESS STEEL WELD OVERLAY. J Chin Soc Corr Pro, 1995, 15(2): 112-118.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1995/V15/I2/112
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