Research Papers

Investigating and Rationalizing Influence of Saline Environment on Response of an Aluminum Alloy: Experimental and Numerical Study

[+] Author and Article Information
Sheng-Li Lv

Science and Technology of UAV Laboratory,
Northwestern Polytechnical University,
Xi'an 710072, China
e-mail: lslv2003@nwpu.edu.cn

Maofei Zhang

Science and Technology of UAV Laboratory,
Northwestern Polytechnical University,
Xi'an 710072, China

Xiaosheng Gao

Fellow ASME
Department of Mechanical Engineering,
The University of Akron,
Akron, OH 44325-3903
e-mail: xgao@uakron.edu

T. S. Srivatsan

Fellow ASME
Department of Mechanical Engineering,
The University of Akron,
Akron, OH 44325-3903
e-mail: tsrivatsan@uakron.edu

Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received December 8, 2015; final manuscript received July 8, 2016; published online October 27, 2016. Assoc. Editor: Antonios Kontsos.

J. Eng. Mater. Technol 139(1), 011006 (Oct 27, 2016) (9 pages) Paper No: MATS-15-1315; doi: 10.1115/1.4034924 History: Received December 08, 2015; Revised July 08, 2016

A sizeable number of structures, as key load-bearing components, are currently being made using both high-strength and medium-strength alloys of aluminum. During their service life, these alloys are often exposed to environments spanning a range of aggressiveness. In this study, the corrosion behavior of a high-strength aluminum alloy in both static and flowing saline solution was conducted using both experimental and numerical analysis. The damage resulting from environment-induced degradation, or corrosion, of the test specimens upon exposure to flowing saline solution was noticeably severe in comparison with the damage caused by exposure to static saline solution. Subsequent to flow-induced degradation, an analysis of dispersion of the corrosion products over the surface revealed it to be in the direction of flowing saline solution. The higher the flow rate of saline solution over the sample surface, the more severe and visibly evident was the severity of damage due to environment-induced degradation. Microscopic observations of the corrosion morphology for the three different flow rates revealed a greater degree of damage to the surface with an increase in flow rate of the saline solution. This can be quantified by both an increase in area of the sample that is degraded and depth of the corrosion-induced pits. Using cellular automata algorithm in conjunction with matlab software, the damage caused by flowing saline solution for three different flow rates predicted fairly accurately the severity of the environment-induced damage due to corrosion and resultant morphology of the corrosion-related debris.

Copyright © 2017 by ASME
Your Session has timed out. Please sign back in to continue.


ASM, 2010, ASM Metals Hand Book, Vol. 1, American Society for Materials International, Materials Park, OH.
Askeland, D. R. , and Wright, W. J. , 2016, The Science and Engineering of Materials, 7th ed., Cengage Learning, Boston, MA.
Wang, J. , Giridharan, V. , Shanov, V. , Xu, Z. , Collins, B. , White, L. , Jang, Y. , Sankar, J. , Huang, N. , and Yun, Y. , 2014, “ Flow-Induced Corrosion Behavior of Absorbable Magnesium-Based Stents,” Acta Biomater., 12, pp. 5213–5223. [CrossRef]
Lv, S.-L. , Cui, Y. , Gao, X. , and Srivatsan, T. S. , 2013, “ Influence of Exposure to Aggressive Environment on Fatigue Behavior of a Shot Peened High Strength Aluminum Alloy,” Mater. Sci. Eng.: A, 574, pp. 243–252. [CrossRef]
Lv, S. , Cu, Y. , Zhang, W. , Tong, X. , Srivatsan, T. S. , and Gao, X. , 2013, “ Influence of Shot Peening on Failure of an Aluminum Alloy Exposed to Aggressive Aqueous Environments,” J. Mater. Eng. Perform., 22(6), pp. 1735–1743. [CrossRef]
Yong, X. , and Lin, Y. , 2002, “ Progress in Study on Flow-Induced Corrosion,” J. Corros. Sci. Prot. Technol., 14(1), pp. 32–34.
Jafarzadeh, K. , and Shahrabi, T. , 2007, “ Role of Chloride Ion and Dissolved Oxygen in Electrochemical Corrosion of AA5083-H321 Aluminum-Magnesium Alloy in NaCl Solutions Under Flow Conditions,” J. Mater. Sci. Technol., 23(5), pp. 623–628.
Sydberger, T. , 1987, “ Flow Dependent Corrosion: Mechanisms, Damage, Characteristics and Control,” J. Br. Corros., 22(2), pp. 83–88. [CrossRef]
Wang, Y. , 2005, “ Corrosion Behavior of Aluminum Alloy in Flowing Seawater,” Equip. Environ. Eng., 2(6), pp. 72–76.
Sun, T. , 2010, “ The Study of Flow Corrosion Performance in the Seawater for Copper and Copper Nickel Alloy,” Ph.D. dissertation, Nanjing University of Aeronautics and Astronautics, Jiangsu, China.
Karimi, A. , and Leo, W. R. , 1987, “ Phenomenological Model for Cavitation Erosion Rate Computation,” Mater. Sci. Eng., 95, pp. 1–14. [CrossRef]
Dean, S. W. , 1990, “ Velocity-Accelerated Corrosion Testing and Predictions,” J. Mater. Perform., 29(9), pp. 61–67.
Lin, Z. , 2009, “ The Study of Corrosion Behavior of Ferroalloy in Flowing Sea Water,” Master's thesis, Dalian University of Technology, Ganjingzi, China.
Lotz, U. , 1990, “ Velocity Effects in Flow Induced Corrosion,” Corrosion'90, NACE International, Houston, TX, Paper No. 27.
Efird, K. D. , 1977, “ Effect of Fluid Dynamics on the Corrosion of Copper-Base Alloys in Seawater,” Corrosion, 33(1), pp. 3–8. [CrossRef]
Wharton, J. A. , and Wood, R. J. K. , 2004, “ Influence of Flow Conditions on the Corrosion of AISI 304L Stainless Steel,” Wear, 256(5), pp. 525–536. [CrossRef]
Liu, J. , Lin, Y. , and Li, X. , 2004, “ Application of Numerical Simulation to Flow Induced Corrosion in Flowing Seawater System,” Anti-Corr. Meth. Mater., 52(5), pp. 276–279. [CrossRef]
Zhang, Z. , and Cheng, X. , 2000, “ Numerical Simulation of Erosion-Corrosion in the Liquid Solid Two-Phase Flow,” Chin. J. Chem. Eng., 8(4), pp. 347–355.
Liu, J. , 2007, “ Numerical Simulation of Flow-Induced Corrosion of Metals in High Flow Multiphase Seawater and Test Verification,” M.S. thesis, Beijing University of Chemical Technology, Chaoyang, China.
Shi, Y. , and Liang, P. , 2013, “ The Corrosion Behavior of Q235 and Q345 Steel in Simulated Seawater,” J. Liaoning Univ. Pet. Chem. Ind., 33(1), pp. 5–8.
Li, L. , and Yu, S. , 2008, “ Corrosion Electrochemical Behavior of AZ31 and AZ61 Magnesium Alloys in Simulated Sea Water,” J. Electrochem., 14(1), pp. 95–99.
Postlethwaite, J. , and Nesic, S. , 1993, “ Erosion in Disturbed Liquid/Particle Pipe Flow: Effects of Flow Geometry and Particle Surface Roughness,” Corrosion, 49(10), pp. 850–857. [CrossRef]
Wang, H. , and Lv, G. , 2008, “ The Cellular Automata Simulation for Metal Surface Corrosion Damage Evolution Process,” J. Aeronaut., 29(6), pp. 1490–1496.


Grahic Jump Location
Fig. 1

A schematic showing shape and dimensions of the specimen used for testing (thickness = 3 mm)

Grahic Jump Location
Fig. 2

Morphology of the test specimens prior to degradation by corrosion

Grahic Jump Location
Fig. 3

Macroscopic morphology of corrosion-induced damage on surface of aluminum alloy specimen when exposed to static saline (3.5 wt.% NaCl) solution: (a) 60 days and (b) 250 days

Grahic Jump Location
Fig. 4

Morphology of corrosion debris on the test specimen surface when exposed to flowing saline solution: (a) 0.1 m/s, (b) 0.27 m/s, and (c) 0.40 m/s

Grahic Jump Location
Fig. 5

Corrosion pits resulting from flow rates of 0.1 m/s (a), 0.27 m/s (b), and 0.4 m/s (c)

Grahic Jump Location
Fig. 6

Predicted results for a flow rate of 0.1 m/s

Grahic Jump Location
Fig. 7

A comparison of experimental observed and predicted morphology for seawater flow rate of 0.1 m/s, taken at the same magnification of 350×

Grahic Jump Location
Fig. 8

The predicted results for saline solution flow rate of 0.27 m/s

Grahic Jump Location
Fig. 9

A comparison of experimental and predicted damage for a flow rate of 0.27 m/s

Grahic Jump Location
Fig. 10

The results for saline solution flow rate of 0.4 m/s

Grahic Jump Location
Fig. 11

A comparison of experimental and predicted damage for saline solution at a flow rate of 0.4 m/s




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In