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Abstract The micro-morphology of the initiation zone of SCC of Ti-5A1-2.5Sn alloy in 3.5% NaCl solution has been inspected by OM and SEM.A study of the SCC crack's details by OM,TEM,X-ray diffractometer and ion microanaly- zer has also been made.Based upon the results of these experiments,it is pro- ved that the hydrogen generated during SCC has really penetrated into the metal matrix,then concentrated at the maximum of triaxial stress in front of the crack tip,and precipitated as hydride particles of fct and bee lattice, resulting in rapid development of SCC.The source,transportation and acting position of hydrogen,as well as the role of internal hydrogen in SCC of tita- nium alloy have been discussed.
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Received: 25 February 1984
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Cite this article:
Huang Xianya Li Yunghung (General Research Institute of Non-ferrous Metals;MMI)Xiao Jinei (Beijing University of Iron and Steel Technology). THE ROLE OF HYDROGEN IN SCC OF TITANIUM ALLOY. J Chin Soc Corr Pro, 1984, 4(1): 41-45.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1984/V4/I1/41
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