Abstract
Slow strain rate testing (SSRT) was employed to study the stress corrosion cracking (SCC) behavior of ZE41 magnesium alloy in 0.01 M NaCl solution. Smooth tensile specimens with different thicknesses were strained dynamically in both longitudinal and transverse direction under permanent immersions at a strain rate of 10−6 s−1. It is found that ZE41 magnesium alloy is susceptible to SCC in 0.01 M NaCl solution. The SCC susceptibility of the thinner specimen is lower than that of the thicker specimen. Also, the longitudinal specimens are slightly more susceptible to SCC than the transverse specimens. The SCC mechanism of magnesium alloy is attributed to the combination of anodic dissolution with hydrogen embrittlement.
Similar content being viewed by others
References
A Atrens, Z F Wang. Stress corrosion cracking[J]. Mater Forum, 1995, 19: 9–34
R G Song, C Blawert, W Dietzel, et al. A Study on Stress Corrosion Cracking and Hydrogen Embrittlement of AZ31 Magnesium Alloy[J]. Mater Sci Eng A, 2005, 399: 308–317
R G Song, M K Tseng, B J Zhang, et al. Grain Boundary Segregation and Hydrogen-induced Fracture in 7050 Aluminium Alloy[J]. Acta Mater, 1996, 44: 3 241–3 248
R G Song, W Dietzel, B J Zhang, et al. Stress Corrosion Cracking and Hydrogen Embrittlement of an Al-Zn-Mg-Cu Alloy[J]. Acta Mater, 2004, 52: 4 727–4 743
R G Song, M G Zeng. Grain Boundary Segregation and Intergranular Brittleness in High Strength Aluminum Alloys[ J]. Trans Nonferrous Met Soc China, 1995, 5: 97–100
G Ben-Hamu, A Eliezer, E M Gutman, et al. Mechanoelectrochemical Behavior of Magnesium Alloys[J]. Mater Sci Eng A, 2006, 420: 109–114
B T Lu, J L Luo. Relationship between Yield Strength and Near-neutral pH Stress Corrosion Cracking Resistance of Pipeline Steels-an Effect of Microstructure[J]. Corrosion, 2006, 62: 129–140
B Y Fang, E H Han, J Q Wang, et al. Influence of Strain Rate on Near-neutral pH Environmentally Assisted Cracking of Pipeline Steels (in Chinese)[J]. Acta Metall Sinica, 2005, 41:1 174–1 182
E Cerri, M Cabibbo, E Evangelista. Microstructural Evolution during High-temperature Exposure in a Thixocast Magnesium Alloy[J]. Mater Sci Eng A, 2002, 333: 208–217
B L Mordike, T Ebert. Magnesium-properties-applicationspotential[J]. Mater Sci Eng A, 2001, 302: 37–45
H Friedrich, S Schumann. Research for a “New Age of Magnesium” in the Automotive Industry[J]. J Mater Process Tech, 2001, 117: 276–281
G Y Yuan, Y S Sun, W J Ding. Effects of Bismuth and Antimony Additions on the Microstructure and Mechanical Properties of AZ91 Magnesium Alloy[J]. Mater Sci Eng A, 2001, 308: 38–44
E Ghali, W Dietzel, K U Kainer. General and Localized Corrosion of Magnesium Alloys: a Critical Review[J]. J Mater Eng Perform, 2004, 13: 7–23
H Inoue, K Sugahara, A Yamamoto, et al. Corrosion Rate of Magnesium and its Alloys in Buffered Chloride Solutions[J]. Corros Sci, 2002, 44: 603–610
G L Song, A Atrens. Corrosion Mechanisms of Magnesium Alloys[J]. Adv Eng Mater, 1999, 1: 11–33
N Winzer, A Atrens, G L Song, et al. A Critical Review of the Stress Corrosion Cracking (SCC) of Magnesium Alloys[ J]. Adv Eng Mater, 2005, 7: 659–693
Author information
Authors and Affiliations
Corresponding author
Additional information
Funded by the National Natural Science Foundation of China (No. 50771093)
Rights and permissions
About this article
Cite this article
Song, R., Yang, F., Blawert, C. et al. Behavior of stress corrosion cracking in a magnesium alloy. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 24, 111–113 (2009). https://doi.org/10.1007/s11595-009-1111-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11595-009-1111-y