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Journal articles on the topic 'Stress corrosion cracking; Aluminium'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Sochu, Witchapong, Nitikorn Noraphaiphipaksa, Anchalee Manonukul, and Chaosuan Kanchanomai. "Elastic-plastic fracture mechanics approach for stress corrosion cracking of nickel aluminium bronze under ammonia-containing artificial seawater." International Journal of Damage Mechanics 27, no. 5 (April 4, 2017): 729–53. http://dx.doi.org/10.1177/1056789517702210.

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With the growth of urbanization and industries, the seawater near coastal areas has become polluted, and the nickel aluminium bronze components around coastal areas are affected by ammonia-containing seawater. Unfortunately, the influence of the ammonia concentration in seawater on the stress corrosion cracking of thin nickel aluminium bronze components with large plastic zones at the defects has not been evaluated before. In the present work, stress corrosion cracking experiments on nickel aluminium bronze components under artificial seawater and ammonia-containing artificial seawater were conducted using a four-point bending technique. The elastic–plastic fracture mechanics parameter ( J-integral) was evaluated using finite element analysis. The J-integral successfully characterized the crack growth rate under the present corrosive environments. Stress corrosion cracking was possible under both artificial seawater and ammonia-containing artificial seawater. The threshold J-integral for susceptibility to stress corrosion cracking ( JSCC) and fracture toughness ( JC) was the highest for stress corrosion cracking under artificial seawater and decreased as the amount of ammonium hydroxide added to the artificial seawater increased.

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2

Jawan, Hosen Ali. "Some Thoughts on Stress Corrosion Cracking of (7xxx) Aluminum Alloys." International Journal of Materials Science and Engineering 7, no. 2 (June 2019): 40–51. http://dx.doi.org/10.17706/ijmse.2019.7.2.40-51.

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3

Wolf, G. K., and H. Buhl. "Stress corrosion cracking of silver-bombarded aluminium alloys." Materials Science and Engineering 69, no. 2 (March 1985): 317. http://dx.doi.org/10.1016/0025-5416(85)90329-5.

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4

O�oro, J., A. Moreno, and C. Ranninger. "Stress corrosion cracking model in 7075 aluminium alloy." Journal of Materials Science 24, no. 11 (November 1989): 3888–91. http://dx.doi.org/10.1007/bf01168951.

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5

Yu, Yan Yan, Ti Jie Song, and Zeng Wei Lu. "Law and Fracture Characteristics of Stress Corrosion Cracking for 7B04 Aluminum Alloy." Materials Science Forum 1032 (May 2021): 207–12. http://dx.doi.org/10.4028/www.scientific.net/msf.1032.207.

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Two states of aluminum alloy material 7B04 T651 and 7B04 T74 using C-ring specimen were selected to carry out stress corrosion simulation test with different stress levels, corrosion concentrations and time, and the fracture morphology of the crack was observed and analyzed by optical microscope and scanning electron microscope (SEM). The results showed that 7B04-T74 alloy was insensitive to stress corrosion and was not prone to stress corrosion cracking under constant tensile stress lower than 432MPa; The stress corrosion cracking time of 7B04 T651 alloy under three different concentrations has no significant difference, and the stress corrosion cracking occurs within 7 days under the stress of 180MPa-432MPa. The time of stress corrosion cracking increased with the decrease of stress. Stress corrosion cracking (SCC) was very sensitive to Cl element, and it was also easy to produce SCC when the concentration of corrosive medium was low, the threshold value of corrosion cracking was about 108 MPa. SEM and EDS analysis showed that the fracture surface was intergranular, mud-like corrosion products, and secondary cracks. At the same time, the matrix grain boundaries were weakened by Cl element.

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6

Venugopal, A., Rajiv Panda, Sushant Manwatkar, K. Sreekumar, L. Ramakrishna, and G. Sundararajan. "Effect of Microstructure on the Localized Corrosion and Stress Corrosion Behaviours of Plasma-Electrolytic-Oxidation-Treated AA7075 Aluminum Alloy Forging in 3.5 wt. %NaCl Solution." International Journal of Corrosion 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/823967.

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The influence of metallurgical heterogeneities such as coring and intermetallic phases on the corrosion and stress corrosion cracking behaviours of AA7075 aluminium alloy forging was examined in 3.5 wt. % NaCl solution with and without plasma electrolytic oxidation coating. Electrochemical test results demonstrated significant improvement in the corrosion resistance of the alloy after PEO coating. Stress corrosion results show that the metallurgical heterogeneities resulted in a loss in elongation of the uncoated sample in NaCl (11.5%) when compared to the one tested in air (12.9%). The loss in elongation of the uncoated sample was shown to be due to localized corrosion-assisted mechanical cracking rather than true stress corrosion based on preexposure tensile tests followed by posttest metallographic observation of the stress corrosion tested samples. This was further confirmed by the fractographic examination of the failed samples, which exhibited a typical ductile cracking morphology for all the coated and uncoated specimens.

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7

Dollah, Mahmood. "The Study of Stress Corrosion Cracking in Aluminum Alloy 7075(W) under Tensile Loading by Eddy Current Measurement." Applied Mechanics and Materials 83 (July 2011): 216–23. http://dx.doi.org/10.4028/www.scientific.net/amm.83.216.

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The double cantilever beam has been widely used in the past and has proved one of the most popular designs for measuring the growth rate of stress corrosion cracks in materials. In this study, the double cantilever beam specimens were used to study the effect of tensile loading on stress corrosion cracking behaviour in aluminium alloy 7075(W). Cracks initiated readily in 3.5%NaCl solution with tensile loading conditions. Stress Corrosion Cracking (SCC) development was found to follow an intergranular path, which strongly depended on microstructure of material. Tests also were carried out to measure the threshold stress intensity, KISCC, which SCC would not occur. The SCC test was explained by an active path mechanism due to the galvanic interaction between grain boundary precipitates and adjacent precipitate-free zones. Crack lengths were measured with an eddy current bore probe and confirmed by optical metallography. The data from the eddy current tests on real stress corrosion cracks were used to construct an eddy current calibration curve for predicting stress corrosion crack lengths of aluminium alloy 7075(W).

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8

Winkler, S. L., and H. M. Flower. "Stress corrosion cracking of cast 7XXX aluminium fibre reinforced composites." Corrosion Science 46, no. 4 (April 2004): 903–15. http://dx.doi.org/10.1016/j.corsci.2003.09.029.

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9

Zhang, Fang Fang, Chun Feng, Li Juan Zhu, and Wen Wen Song. "Research Progress on Corrosion Resistance of Titanium Alloy Oil Well Tubing." Materials Science Forum 1035 (June 22, 2021): 528–33. http://dx.doi.org/10.4028/www.scientific.net/msf.1035.528.

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Compared with aluminum alloy and alloy steel, titanium alloy has higher specific strength, lower modulus of elasticity, and better toughness, fatigue performance and corrosion resistance. In terms of oil well tubing, the development of titanium alloy lags behind that of aluminum alloy and alloy steel. Aluminum alloy tubing is sensitive to pitting, fatigue corrosion and stress corrosion cracking. At the same time, it is not suitable for ultra-deep wells due to temperature limitations. Easily interact with corrosive media to cause corrosion and cracking. Titanium alloy oil well tubing is expected to solve this corrosion problem, but its corrosion resistance research is still incomplete. Therefore, it is necessary to develop titanium alloy oil well tubing with good corrosion resistance to improve corrosion fatigue (CF), fatigue during deep oil well and natural gas drilling operations. Catastrophic brittle fracture caused by hydrogen induced cracking (HIC), pitting corrosion and sulfide stress cracking (SSC). In this paper, by investigating a large number of domestic and foreign documents, the corrosion types of titanium alloy oil well pipes are analyzed, and the research status of corrosion resistance of titanium alloy oil well pipes is reviewed from three aspects: oil pipes, casings and drill pipes.

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10

Burnett, Timothy L., N. J. Henry Holroyd, Geoffrey M. Scamans, Xiaorong Zhou, George E. Thompson, and Philip J. Withers. "The role of crack branching in stress corrosion cracking of aluminium alloys." Corrosion Reviews 33, no. 6 (November 1, 2015): 443–54. http://dx.doi.org/10.1515/corrrev-2015-0050.

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AbstractStress corrosion cracks of all types are characterised by extensive crack branching, and this is frequently used as the key failure analysis characteristic to identify this type of cracking. For aluminium alloys, stress corrosion cracking (SCC) is almost exclusively an intergranular failure mechanism. For plate and extruded components, this had led to the development of test procedures using double cantilever beam and compact tension precracked specimens that rely on the pancake grain shape to constrain cracking, so that fracture mechanics can be applied to the analysis of stress intensity and crack velocity and the evolution of a characteristic performance curve. We have used X-ray computed tomography to examine in detail SCC in aluminium alloys in three dimensions for the first time. We have found that crack branching limits the stress intensity at the crack tip as the applied stress is shared amongst a number of cracks that are held together by uncracked ligaments. We propose that the plateau region observed in the v-K curve is an artefact due to crack branching, and at the crack tips of the many crack branches, cracking essentially occurs at constant K almost irrespective of the crack length. We have amplified the crack branching effect by examining a sample where the long axis of the pancake grains was inclined to the applied stressing direction. Our results have profound implications for the future use of precracked specimens for SCC susceptibility testing and the interpretation of results from these tests.

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11

Venugopal, A., P. Ramesh Narayanan, S. C. Sharma, and Koshy M. George. "Effect of Micro Arc Oxidation Treatment on the Corrosion and Stress Corrosion Cracking (SCC) Behaviours of AA7020-T6 Aluminum Alloy in 3.5% NaCl Solution." Materials Science Forum 830-831 (September 2015): 639–42. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.639.

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Alumina coating was formed on AA7020 aluminum alloy by micro arc oxidation (MAO) method and its corrosion and stress corrosion cracking (SCC) behaviors were examined in 3.5 wt. % NaCl solution. Potentiodynamic polarization (PP) was used to evaluate the corrosion resistance of the coating and slow strain rate test (SSRT) was used for evaluating the environmental cracking resistance in 3.5% NaCl solution. Results indicated that MAO coating on AA7020 alloy significantly improved the corrosion resistance. However the environmental cracking resistance was found to be only marginal. Key words: aluminum, micro arc oxidation, x-ray diffraction, stress corrosion cracking

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12

Xu, W. L., T. M. Yue, and H. C. Man. "Stress Corrosion Cracking Behaviour of Excimer Laser Treated Aluminium Alloy 6013." MATERIALS TRANSACTIONS 49, no. 8 (2008): 1836–43. http://dx.doi.org/10.2320/matertrans.mra2008105.

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13

Monticelli, C., F. Zucchi, G. Brunoro, and G. Trabanelli. "Stress corrosion cracking behaviour of some aluminium-based metal matrix composites." Corrosion Science 39, no. 10-11 (October 1997): 1949–63. http://dx.doi.org/10.1016/s0010-938x(97)00088-7.

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14

Shen, Y. L., J. J. Chan, and S. C. Chang. "The shear band stress-corrosion cracking of an aluminium-lithium alloy." Journal of Materials Science Letters 7, no. 7 (July 1988): 787–88. http://dx.doi.org/10.1007/bf00722101.

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15

Braun, Reinhold. "On the stress corrosion cracking behaviour of 6XXX series aluminium alloys." International Journal of Materials Research 101, no. 5 (May 2010): 657–68. http://dx.doi.org/10.3139/146.110314.

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16

Braun, R. "Anion effects on the stress corrosion cracking behaviour of aluminium alloys." Materials and Corrosion 54, no. 3 (March 2003): 157–62. http://dx.doi.org/10.1002/maco.200390035.

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17

Shen, L., H. Chen, L. D. Xu, X. L. Che, and Y. Chen. "Stress corrosion cracking and corrosion fatigue cracking behavior of A7N01P-T4 aluminum alloy." Materials and Corrosion 69, no. 2 (August 31, 2017): 207–14. http://dx.doi.org/10.1002/maco.201709527.

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18

Panagopoulos, C., Emmanuel Georgiou, K. Giannakopoulos, and P. Orfanos. "Effect of pH on Stress Corrosion Cracking of 6082 Al Alloy." Metals 8, no. 8 (July 26, 2018): 578. http://dx.doi.org/10.3390/met8080578.

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In this work, the effect of pH (3, 7 and 10) on the stress corrosion cracking behavior of 6082 aluminum alloy, in a 0.3 M sodium chloride (NaCl) aqueous based solution was investigated. The stress corrosion cracking behavior was studied with slow strain rate testing, whereas failure analysis of the fractured surfaces was used to identify the dominant degradation mechanisms. The experimental results clearly indicated that stress corrosion cracking behavior of this aluminum alloy strongly depends on the pH of the solution. In particular, the highest drop in ultimate tensile strength and ductility was observed for the alkaline pH, followed by the acidic, whereas the lowest susceptibility was observed in the neutral pH environment. This observation is attributed to a change in the dominant stress corrosion cracking mechanisms.

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19

Staley, J. T. "Corrosion of Aluminium Aerospace Alloys." Materials Science Forum 877 (November 2016): 485–91. http://dx.doi.org/10.4028/www.scientific.net/msf.877.485.

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The Junkers F13 airplane, which began production in 1919, was the first plane to be built using aluminum aerospace alloys. Nearly 100 years later, approximately 1,800 new planes are being built each year with aluminum aerospace alloys. For the five trillion or so dollars worth of existing aging airplanes, cost of aerospace corrosion in United States alone is an estimated 23 billion dollars per year. In addition, hidden corrosion costs have contributed to a bigger impact in the commercial aircraft industry. In 1988, in the corrosion sensitive environment of the Hawaiian islands, an Aloha Airlines 737 aircraft suffered an in-flight failure due to crevice corrosion in the lap joint of the fuselage. After this event, the aviation technical community launched a new era of advanced technology, improved procedures and higher standards for maintaining the world’s aging and corroding aircraft. This paper discusses types of corrosion that affect aluminum aerospace alloys including crevice corrosion, pitting, exfoliation, intergranular, stress corrosion cracking (SCC) and corrosion fatigue. Standardized testing to determine if the alloy is susceptible to these types of corrosion is explained and examples of how to mitigate certain types of corrosion is discussed.

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20

Li, Xu Dong, Zhi Tao Mu, and Zhi Guo Liu. "SEM In Situ Study on Pre-Corrosion and Fatigue Cracking Behavior of LY12CZ Aluminum Alloy." Key Engineering Materials 525-526 (November 2012): 81–84. http://dx.doi.org/10.4028/www.scientific.net/kem.525-526.81.

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Corrosion fatigue is a form of degradation subjected to combined damage of mechanical stress and corrosive medium, which is an issue in aircraft industry. Experimental investigations on prior corrosion fatigue cracking behavior of LY12CZ were conducted with scanning electron microscope (SEM). Results indicate corrosion damage is important for the fatigue small cracking behavior of LY12CZ aluminum alloy. The effect of corrosion pit on fatigue crack can be characterized by the depth of corrosion pit. Based on small crack, another way to evaluate crack growth rate for AALY12CZ is proposed.

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21

Fu, Xing, Wen Xu Wang, Yao Li, Yu Bo Zuo, Ping Wang, and Jian Zhong Cui. "Study on the Annealing Process of a Cu-Zn-Al-Ni Alloy." Advanced Materials Research 1120-1121 (July 2015): 1208–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.1208.

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Aluminum brass possesses an attractive combination of properties including high strength, high thermal and electrical conductivity, good mechanical workability, excellent corrosion resistance, low susceptibility to stress corrosion cracking. This make it a preferred choice for bimetal strips. The materials for preparing bimetal strips with cold roll bonding should have a good plasticity. In the present work, a Cu-Zn-Al-Ni alloy was proposed and the annealing process for this aluminium brass alloy was studied. The effect of annealing temperature and annealing time on the microstructure and mechanical properties was investigated. The proper annealing parameters were obtained.

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22

Prabhuraj, P., S. Rajakumar, A. K. Lakshminarayanan, and V. Balasubramanian. "Evaluating stress corrosion cracking behaviour of high strength AA7075-T651 aluminium alloy." Journal of the Mechanical Behavior of Materials 26, no. 3-4 (December 20, 2017): 105–12. http://dx.doi.org/10.1515/jmbm-2017-0019.

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AbstractThe objective of the present study is to determine the threshold stress level of stress corrosion cracking (SCC) in AA7075-T651 aluminium alloy by suitable experimentation. The test was carried out using a circumferential notch specimen in a horizontal-type constant load SCC setup in a 3.5 wt.% NaCl solution. The time to failure by SCC was determined at various loading conditions. The threshold stress of AA7075-T651 alloy was found to be 242 MPa in a 3.5 wt.% NaCl solution. The various regions of the fractured surface specimen such as machined notch, SCC region and final overload fracture area were examined using scanning electron microscopy (SEM) in order to identify the SCC mechanism.

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23

Bavarian, Behzad, Jia Zhang, and Lisa Reiner. "Corrosion Inhibition of Stress Corrosion Cracking and Localized Corrosion of Turbo-Expander and Steam/Gas Turbines Materials." Key Engineering Materials 488-489 (September 2011): 61–64. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.61.

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Stress corrosion cracking of 7050 aluminum alloys and ASTM A470 steel in the turbo expander and steam/gas turbine industry can cause expensive catastrophic failures, especially for turbo machinery systems performing in hostile, corrosive environments. Commercially available inhibitors were investigated for their effectiveness in reducing and controlling the corrosion susceptibility. Inhibitor effectiveness was confirmed with electrochemical corrosion techniques in different solutions. Polarization resistance increased with concentration of corrosion inhibitor due to film formation and displacement of water molecules. Cyclic polarization behavior for samples in the 1.0% and 5.0% inhibitors showed a shift in the passive film breakdown potential. The substantial increase in the passive range has positive consequences for neutralizing pitting and crevice corrosion cell chemistry. The strain to failure and tensile strength obtained from the slow strain rate studies for both alloys showed pronounced improvement due to corrosion inhibitor ability to mitigate SCC; the fractographic analysis showed a changed morphology with ductile overload as the primary failure mode instead of transgranular or intergranular cracking.

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24

Nagaoka, Kunio, Toshio Nasu, Toyojiro Isano, and Keisuke Ikeda. "Effect of Bending Strain on Stress Corrosion Cracking of 7475 Aluminium Alloy." Journal of the Japan Institute of Metals 52, no. 3 (1988): 272–78. http://dx.doi.org/10.2320/jinstmet1952.52.3_272.

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25

Kondracki, Marcin. "Stress corrosion cracking of leaded brass with various aluminium and tin content." OCHRONA PRZED KOROZJĄ 1, no. 10 (October 5, 2017): 18–21. http://dx.doi.org/10.15199/41.2017.10.4.

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26

Davó, B., A. Conde, and J. de Damborenea. "Stress corrosion cracking of B13, a new high strength aluminium lithium alloy." Corrosion Science 48, no. 12 (December 2006): 4113–26. http://dx.doi.org/10.1016/j.corsci.2006.03.005.

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27

Spathis, Panagiotis. "Influence of anodic coatings on stress corrosion behaviour of 7017 aluminium alloy." Anti-Corrosion Methods and Materials 61, no. 1 (December 20, 2013): 27–31. http://dx.doi.org/10.1108/acmm-12-2012-1226.

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Purpose – The purpose of this work was to study the cracking susceptibility of a 7017 aluminium alloy, after anodising under various conditions. Design/methodology/approach – Slow strain tests in dry air, laboratory air and sodium chloride solution were employed. Anodic oxide films were produced with various applied current densities and thicknesses, in horizontal or vertical orientation of the coatings, at the free corrosion potential and also at various anodic or cathodic potentials. For the interpretation of the results, a metallographic study of the specimens before and after straining to failure was carried out using a scanning electron microscope. Findings – The behaviour of anodic coatings was found to depend very much on the anodising conditions. The coatings reduced the ductility of the alloy in dry air but can actually increase the ductility in laboratory air and in 3.5 per cent sodium chloride solution. In most cases, the ductility of coated specimens was greater in 3.5 per cent NaCl solution than in dry air, possibly due to crack blunting by the aggressive environment. Anodic coatings moved the free corrosion potential of the alloy in the noble direction and both the anodised and the bare alloy generally suffered a reduction in ductility at potentials anodic or cathodic to the free corrosion potential, the fall being more rapid for the anodised alloy. Research limitations/implications – The mechanism causing the increased ductility of coated specimens in 3.5 per cent NaCl solution than in dry air remains yet to be confirmed. Practical implications – The selection of suitable anodic coatings for the protection of aluminium alloys against stress corrosion cracking depends on the anodising conditions. Originality/value – The paper provides information regarding the influence of anodising conditions on the anticorrosive properties of electrolytically prepared anodic coatings on aluminium alloys.

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28

OHNISHI, Tadakazu, Hiroyuki KOJIMA, Nobuya SEKO, and Kenji HIGASHI. "Stress corrosion cracking of 7075 series aluminum alloys." Journal of Japan Institute of Light Metals 35, no. 6 (1985): 344–52. http://dx.doi.org/10.2464/jilm.35.344.

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29

Balasubramaniam, R., D. J. Duquette, and K. Rajan. "On stress corrosion cracking in aluminum-lithium alloys." Acta Metallurgica et Materialia 39, no. 11 (November 1991): 2597–605. http://dx.doi.org/10.1016/0956-7151(91)90075-c.

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30

Zielinski, A. "Hydrogen-enhanced stress-corrosion cracking of aluminum alloys." Materials Science 34, no. 4 (July 1998): 469–75. http://dx.doi.org/10.1007/bf02360698.

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31

Chu, Wu-Yang, Chi-Mei Hsiao, and Jun-Wen Wang. "Stress corrosion cracking of an aluminum alloy under compressive stress." Metallurgical Transactions A 16, no. 9 (September 1985): 1663–70. http://dx.doi.org/10.1007/bf02663022.

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32

Nur Ismarrubie, Zahari, K. W. Loh, and Hanafiah Yussof. "Effect of Heat Treatment on Mechanical Properties and Susceptibility to Stress Corrosion Cracking of Aluminium Alloy." Advanced Materials Research 845 (December 2013): 178–82. http://dx.doi.org/10.4028/www.scientific.net/amr.845.178.

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The effect of the retrogression and reaging (RRA) heat treatment on the correlation between microstructure, mechanical properties and susceptibility to stress corrosion cracking (SCC) of the 6061-T6 aluminium alloy in dry air and sprayed in 3.5% NaCl solution has been studied. The as-received T6 alloy was subjected to retrogression at temperature 200°C for 10 minutes, quenching for 30 seconds and reaging at temperature 180°C for 24 h. In this study, the effect of RRA on mechanical properties of the as-received 6061-T6 alloy was investigated by tensile test in air and sprayed in 3.5% NaCl solution. Alternate immersion preparation was conducted to expose the as-received 6061-T6 alloys and RRA heat treated alloys into the corrosive environment, 3.5% NaCl solution for 20 days. The susceptibility to SCC was investigated by direct tension stress-corrosion (DTSC) tests sprayed in a 3.5% NaCl solution at crosshead speed of 0.2 mm/min; the loss of elongation (ELloss) was taken into account for the susceptibility to SCC. Generally, the RRA heat treatment improves the mechanical properties including yield strength, ultimate tensile strength and ductility. On the other hand, the RRA heat treatment decreases the susceptibility to SCC.

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33

Lee, Cheng Kuo, Chung Sheng Chang, An Hung Tan, Ching Yi Yang, and Sheng Long Lee. "Preparation of Electroless Nickel-Phosphorous-TiO₂ Composite Coating for Improvement of Wear and Stress Corrosion Cracking Resistance of AA7075 in 3.5% NaCl." Key Engineering Materials 656-657 (July 2015): 74–79. http://dx.doi.org/10.4028/www.scientific.net/kem.656-657.74.

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In this study nanoTiO2 particles were incorporated into the electroless plating solution to prepare Ni-P-TiO2 composite coating on anodized AA7075 aluminum alloy to improve the wear and stress corrosion cracking resistance of the coated alloy in 3.5%NaCl solution. The anodized AA7075 aluminum alloy was also performed by a boiling water sealing treatment for comparison. The wear and stress corrosion cracking (SCC) characteristics were investigated using a self-designed block-on-ring machine and slow strain rate test. The effect of corrosion was evaluated by electrochemical polarization measurements. The surface morphology, element composition and surface hardness of the coating were analyzed by scanning electron microscopy (SEM), X-ray energy dispersive spectrometry (EDS) and Vicker′s hardness tester. Experimental results indicated that after boiling water sealing treatment the resistance properties of the anodized AA7075 aluminum alloy were further improved. The anodizing treatment of AA7075 aluminum alloy gave a thick film with high porosity. The porous film efficiently improved the cohesion, adhesion and hardness of the electroless Ni-P composite coating. Therefore, the electroless Ni-P composite coating deposited on the anodized AA7075 aluminum alloy offered a superior wear, pitting corrosion and stress corrosion cracking resistance properties than both anodizing and sealing treatment. By comparison with Ni-P and Ni-P-TiO2 coatings the incorporation of TiO2 resulted in a more uniform and crack-free surface structure of the composite coating. This is responsible for the higher hardness, better wear, pitting corrosion and stress corrosion cracking resistance of the electroless Ni-P-TiO2 coating.

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34

Astarita, A., C. Bitondo, A. Squillace, E. Armentani, and F. Bellucci. "Stress corrosion cracking behaviour of conventional and innovative aluminium alloys for aeronautic applications." Surface and Interface Analysis 45, no. 10 (February 7, 2013): 1610–18. http://dx.doi.org/10.1002/sia.5234.

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35

Dollah, M., and M. J. Robinson. "Stress corrosion cracking of aluminium alloy 7075(w) under tensile and compressive loading." Corrosion Engineering, Science and Technology 46, no. 1 (February 2011): 42–48. http://dx.doi.org/10.1179/147842208x386340.

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36

Bayoumi, Mohamed Ragab. "The mechanics and mechanisms of fracture in stress corrosion cracking of aluminium alloys." Engineering Fracture Mechanics 54, no. 6 (July 1996): 879–89. http://dx.doi.org/10.1016/0013-7944(93)e0027-z.

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37

Ohsaki, S., K. Kobayashi, M. Iino, and T. Sakamoto. "Fracture toughness and stress corrosion cracking of aluminium-lithium alloys 2090 and 2091." Corrosion Science 38, no. 5 (May 1996): 793–802. http://dx.doi.org/10.1016/0010-938x(95)00177-l.

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38

Lynch, Stan. "Failures of metallic components involving environmental degradation and material- selection issues." Corrosion Reviews 35, no. 4-5 (October 26, 2017): 191–204. http://dx.doi.org/10.1515/corrrev-2017-0023.

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AbstractEnvironmentally assisted failures involving poor materials selection (or heat treatment), along with some examples where the specified material was (inadvertently) not used, are described. The materials discussed are martensitic steels, stainless steels, aluminium alloys, and copper alloys. The examples discussed include some cases where the material-selection issue was with welds, coatings, or insulation rather than the component material per se. The failure modes discussed are hydrogen embrittlement, stress-corrosion cracking, corrosion fatigue, metal-induced embrittlement, galvanic corrosion, selective corrosion (dealloying), and intergranular corrosion. The characteristics of fracture/corrosion, which contribute toward correctly diagnosing the modes and causes of failure, are also outlined along with comments on the mechanisms involved.

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39

Lervik, Adrian, John C. Walmsley, Lars Lodgaard, Calin D. Marioara, Roy Johnsen, Otto Lunder, and Randi Holmestad. "Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy." Metals 10, no. 9 (September 7, 2020): 1194. http://dx.doi.org/10.3390/met10091194.

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Stress corrosion cracking (SCC) in Cu-free Al-Zn-Mg (7xxx) aluminium alloys limits its use in many applications. In this work, we study in detail the microstructure of a peak and slightly overaged condition in an AA7003 alloy using transmission- and scanning electron microscopy in order to provide a comprehensive understanding of the microstructural features related to SCC. The SCC properties have been assessed using the double cantilever beam method and slow strain rate tensile tests. Grain boundary particles, precipitate free zones, and matrix precipitates have been studied. A difference in the SCC properties is established between the two ageing conditions. The dominating difference is the size and orientation of the hardening phases. Possible explanations correlating the microstructure and SCC properties are discussed.

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Ma, Jijun, Jing Sun, Quanmei Guan, Qingwei Yang, Jian Tang, Chengxiong Zou, Jun Wang, et al. "The Localized Corrosion and Stress Corrosion Cracking of a 6005A-T6 Extrusion Profile." Materials 14, no. 17 (August 30, 2021): 4924. http://dx.doi.org/10.3390/ma14174924.

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In the present work, the localized corrosion and stress corrosion cracking (SCC) behaviors of a commercial 6005A-T6 aluminum extrusion profile was studied comprehensively. The velocity of crack growth in self-stressed double-cantilever beam (DCB) specimens under constant displacement was estimated, which also provides insight into the local microstructure evolutions at the crack tips caused by the localized pitting corrosion, intergranular corrosion (IGC), and intergranular SCC. Characterizations of local corrosion along the cracking path for a period of exposure to 3.5% NaCl were revealed via optical microscope (OM), scanning electron microscope (SEM), and electron backscatter diffraction (EBSD). The typical features of the pits dominated by the distribution of precipitates included the peripheral dissolution of the Al matrix, channeling corrosion, intergranular attack, and large pits in the grains. The discontinuous cracking at the crack tips indicated the hydrogen-embrittlement-mediated mechanism. Moreover, the local regions enriched with Mg2Si and Mg5Si6 phases and with low-angle grain boundaries presented better SCC resistance than those of the matrix with high-angle grain boundaries, supporting a strategy to develop advanced Al–Mg–Si alloys via interfacial engineering.

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OHNISHI, Tadakazu, Takeshi HAMAMOTO, Harushige TSUBAKINO, and Yuji TANIBUCHI. "Stress corrosion cracking of RRA-treated 7050 aluminum alloy." Journal of Japan Institute of Light Metals 43, no. 6 (1993): 308–13. http://dx.doi.org/10.2464/jilm.43.308.

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Shaw, W. J. D. "Stress corrosion cracking behavior of IN-9021 aluminum alloy." Metallography 19, no. 2 (May 1986): 227–33. http://dx.doi.org/10.1016/0026-0800(86)90038-8.

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Czechowski, M. "Stress corrosion cracking of explosion welded steel-aluminum joints." Materials and Corrosion 55, no. 6 (June 2004): 464–67. http://dx.doi.org/10.1002/maco.200303771.

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Tsai, T. C., J. C. Chang, and T. H. Chuang. "Stress corrosion cracking of superplastically formed 7475 aluminum alloy." Metallurgical and Materials Transactions A 28, no. 10 (October 1997): 2113–21. http://dx.doi.org/10.1007/s11661-997-0168-5.

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Makar, G. L., J. Kruger, and K. Sieradzki. "Stress corrosion cracking of rapidly solidified magnesium-aluminum alloys." Corrosion Science 34, no. 8 (August 1993): 1311–42. http://dx.doi.org/10.1016/0010-938x(93)90090-4.

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Wang, Xi-Shu, Xu-Dong Li, Hui-Hui Yang, Norio Kawagoishi, and Pan Pan. "Environment-induced fatigue cracking behavior of aluminum alloys and modification methods." Corrosion Reviews 33, no. 3-4 (July 1, 2015): 119–37. http://dx.doi.org/10.1515/corrrev-2014-0057.

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AbstractThis paper reviews the current corrosion fatigue strength issues of light metals, which include the corrosion fatigue cracking behaviors, such as the prior-corrosion pit deformation mechanism, the synergistic interaction between prior-corrosion pits and local stress/strain, the coupling damage behavior under mechanical fatigue loading, and the surrounding environmental factors such as a high humidity and a current 3.5 wt.% or 5.0 wt.% NaCl aqueous solution. The characterization of corrosion fatigue crack growth rate based on simple and measurable parameters (crack propagation length and applied stress amplitude or stress intensity factor) is also of great concern in engineering application. In addition, an empirical model to predict S-N curves of aluminum alloys at the environmental conditions was proposed in this paper. One of the main aims was to outline the corrosion fatigue cracking mechanism, which favors the corrosion fatigue residual life prediction of aluminum alloys subjected to the different environmental media that are often encountered in engineering services. Subsequently, this paper explores recently various surface modification technologies to enhance corrosion fatigue resistance and to improve fatigue strength. For example, the fatigue strength of 2024-T4 aluminum alloy has been modified using plasma electrolytic oxidation coating with the impregnation of epoxy resin modification method to compare with other oxide coating or uncoated substrate alloy.

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Braun, Reinhold. "Investigation on Microstructure and Corrosion Behaviour of 6XXX Series Aluminium Alloys." Materials Science Forum 519-521 (July 2006): 735–40. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.735.

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Microstructure and corrosion behaviour of 6061 and 6013 sheet material were investigated in the naturally aged and peak-aged heat treatment conditions. Transmission electron microscopy did not reveal strengthening phases in the naturally aged sheet. In the peak-aged temper, β’’ precipitates were observed in alloy 6061, whereas both β’’ and Q’ phases were present in 6013- T6 sheet. Marked grain boundary precipitation was not found. Corrosion potentials of the alloys 6061 and 6013 shifted to more active values with increasing aging. For the copper containing 6013 sheet, the potential difference between the tempers T4 and T6 was more pronounced. When immersed in an aqueous chloride-peroxide solution, alloy 6061 suffered predominantly intergranular corrosion and pitting in the tempers T4 and T6, respectively. On the contrary, 6013 sheet was sensitive to pitting in the naturally aged condition, and intergranular corrosion was the prevailing attack in the peak-aged material. Both alloys 6061 and 6013 were resistant to stress corrosion cracking in the tempers T4 and T6.

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Wu, Bao Lin, Ji Hhong Shi, Yu Dong Zhang, Yi Nong Wang, Liang Zuo, and Claude Esling. "The Influence of Texture and GBCD on Stress Corrosion and Intergranular Corrosion in 2024 Aluminum Alloy." Solid State Phenomena 105 (July 2005): 181–86. http://dx.doi.org/10.4028/www.scientific.net/ssp.105.181.

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The recrystallization texture, grain boundary character distribution (GBCD) and their influence on the stress corrosion cracking and intergranular corrosion of 2024 aluminum alloy were investigated. Results showed that the texture of Specimen A1 is characterized by the retained coldrolling texture; while Specimen A3 has strong recrystallized cube texture and high frequencies of CSL grain boundaries (especially S7), which shows high stress corrosion and intergranular corrosion resistance.

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Dudzik, Krzysztof, and Mirosław Czechowski. "Stress Corrosion Cracking of 5083 and 7020 Aluminium Alloys Jointed by Friction Stir Welding." Solid State Phenomena 165 (June 2010): 37–42. http://dx.doi.org/10.4028/www.scientific.net/ssp.165.37.

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Emmerich, R., G. K. Wolf, H. Buhl, and R. Braun. "The influence of ion-induced surface modification on stress corrosion cracking of aluminium alloys." Surface and Coatings Technology 66, no. 1-3 (August 1994): 436–40. http://dx.doi.org/10.1016/0257-8972(94)90045-0.

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