Formation of hydrogen blister on AZ91 magnesium alloy during cathodic charging

被引:30
作者
Chen, Jian [1 ]
Ai, Meirong [1 ]
Wang, Jianqiu [1 ]
Han, En-Hou [1 ]
Ke, Wei [1 ]
机构
[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
关键词
Magnesium; Galvanostatic; STRESS-CORROSION CRACKING; IN-SITU OBSERVATION; MG-AL ALLOY; SODIUM-SULFATE SOLUTION; WET-DRY CONDITIONS; NA2SO4; SOLUTION; BEHAVIOR; INITIATION; HYDRIDE; STEELS;
D O I
10.1016/j.corsci.2009.02.020
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The process of hydrogen blister formation on as-cast AZ91 magnesium alloy was investigated in 0.1 M NaOH solution using galvanostatic test. The results showed that cathodic charging of AZ91 alloy resulted in hydrogen blister formation, and blister rupture caused the nucleation and propagation of transgranular micro-cracks around the ruptured blister. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1197 / 1200
页数:4
相关论文
共 25 条
[1]   CHLORIDE CORROSION OF AUSTENITIC STAINLESS-STEELS AND OF AN INCONEL ALLOY IN HOT ACIDIC MEDIA [J].
ALI, SI ;
ABBASCHIAN, GJ .
CORROSION SCIENCE, 1978, 18 (01) :15-19
[2]   TRANSGRANULAR SCC OF A MG-AL ALLOY - CRYSTALLOGRAPHIC, FRACTOGRAPHIC AND ACOUSTIC-EMISSION STUDIES [J].
CHAKRAPANI, DG ;
PUGH, EN .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1975, 6 (06) :1155-1163
[3]   HYDROGEN EMBRITTLEMENT IN A MG-AL ALLOY [J].
CHAKRAPANI, DG ;
PUGH, EN .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (02) :173-178
[4]   FRACTOGRAPHY OF TRANSGRANULAR STRESS-CORROSION FAILURES IN A MG-AL ALLOY [J].
CHAKRAPANI, DG ;
PUGH, EN .
CORROSION, 1975, 31 (07) :247-252
[5]   In Situ Observation of Initial Corrosion of MgAl9Zn1 Magnesium Alloy in Cyclic Wet-Dry Conditions Using Environmental Scanning Electron Microscopy [J].
Chen, J. ;
Wang, J. ;
Han, E. ;
Ke, W. .
CORROSION, 2007, 63 (07) :661-671
[6]   Corrosion behavior of AZ91D magnesium alloy in sodium sulfate solution [J].
Chen, J. ;
Wang, J. ;
Han, E. ;
Dong, J. ;
Ke, W. .
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2006, 57 (10) :789-793
[7]   In situ observation of crack initiation and propagation of the charged magnesium alloy under cyclic wet-dry conditions [J].
Chen, Jian ;
Wang, Jianqiu ;
Han, Enhou ;
Ke, Wei .
CORROSION SCIENCE, 2008, 50 (08) :2338-2341
[8]   Electrochemical corrosion and mechanical behaviors of the charged magnesium [J].
Chen, Jian ;
Wang, Jianqiu ;
Han, Enhou ;
Ke, Wei .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 494 (1-2) :257-262
[9]   Effect of hydrogen on stress corrosion cracking of magnesium alloy in 0.1 M Na2SO4 solution [J].
Chen, Jian ;
Wang, Jianqiu ;
Han, Enhou ;
Ke, Wei .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2) :428-434
[10]   States and transport of hydrogen in the corrosion process of an AZ91 magnesium alloy in aqueous solution [J].
Chen, Jian ;
Wang, Jianqiu ;
Han, Enhou ;
Dong, Junhua ;
Ke, Wei .
CORROSION SCIENCE, 2008, 50 (05) :1292-1305