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Corrosion and Corrosion Protection of Automotive Heat Exchangers - Comparison between Copper/Brass and Aluminium
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Abstract
Demands on longer life time, lower weight, mixing of different materials and last but not least changed corrosion conditions due to pollution and climate conditions have made the corrosion behaviour both externally and internally of automotive heat exchangers more important in recent years.
This paper presents our experiences from both field and laboratory tests of copper/brass and aluminium radiators together with some literature results. The main part is dealing with external corrosion. Comments are given on the influence of material properties, production methods and ways of protection. In the case of copper/brass results, from trials and use of an improved corrosion protection with a special type of lacquer are presented.
In conclusion, it is stated that the competing materials mentioned, show different characters from a corrosion point of view. These differences are, however, not considered significant enough to be decisive for the choice between copper and aluminium materials for automotive heat exchanger.
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Sundberg, R., Holm, R., and Hassel, L., "Corrosion and Corrosion Protection of Automotive Heat Exchangers - Comparison between Copper/Brass and Aluminium," SAE Technical Paper 870181, 1987, https://doi.org/10.4271/870181.Also In
References
- Mattsson, E. Holm, R. “Atmospheric Corrosion of Copper and Its Alloys” published in “Atmospheric Corrosion” Ailor W.H. John Wiley & Sons, Inc. 1982
- LaQue, PL Copson. HR “Corrosion Resistance of Metals and Alloys” Reinhold Publ. Co. 2ed New York 1963
- Baboian, R. “Chemistry of the Automotive Environment” SAE Proc Conf., Designing for Automotive Corrosion Prevention 8-10 1978
- Hiers, G.O. Minarcik, E.J. ASTM STP 175 1955 135
- Birk. A.A. Trans ASMS 73 1951 859
- Lindgren. S. “Korrosionsegenskaper hos aluminiummaterial Swedish Corrosion Institute Stockholm 1980, Conference
- Landegren, W. Holm, R. “Stål-aluminiumlinors korrosionshärdighet. Fältförsök” Varmförzinkningstekniska Konferensen 1978 Vejle, Danmark 39
- Harlfinger, R. Rogler, E. Völkel, E. “Einfluss unterschiedlicher Auf-tausalse auf die Korrosionsbeständigkeit von Kraftfahraeugaussenteilen” Metalloberfläche 35 1981 2 48
- Ericsson, P. Johansson, L-G. “The Role of NO 2 in the Atmospheric Corrosion of Different Metals” 10th Scan Corr Cong. Stockholm 1986
- Sasaki, G. Nomoto. A. Nishiyama, S. Ota, N. “Corrosion Resistant Oxygen Free Copper Alloy Strips for Automotive Radiator” Hitachi Cable Review 3 Aug 1984 49 52
- Suda. H. Ohyama, Y. Shiba, N. Omata, K. Horikawa. H. Sato, N. Shiga. S. “Development of Quantitative Acceleration Tests and Corrosion Resistant High Conductivity Copper Fin Stock for Salt Corrosion of Vehicle Radiators” The Furukawa Electric Review 77 1986 19 28
- Yamazaki. S. Private information from Sumitomo Metal Mining
- Saatweber, D. “Korrosionsschuta-prüfung von Lacksysteme für Kraftfahr-Eeuge mit einem Wechseltest” Proj. Nr 0-12.1/1.Werkstoffe und Korrosion 35 1984 159 164
- Park, K.H. “Dezincification Corrosion and Its Prevention for Copper/Brass Radiators Ford Motor Co. 1984
- Corrosion of Metals and Alloys -Determination of Dezincification Resistance of Brass 1981
- Mazza, F. Torchio. S. “Factors Influencing the Susceptibility of Intergranular Attack. Stress Corrosion Cracking and De-Alloying Attack of Aluminium Brass” Corrosion Sc. 23 1983 10 1053 1072
- Park, K.M. Blunes, B.W. Zaleski, R.J. Score. H. “New Vacuum Brazed Aluminium Radiators for Ford Light Trucks” SAE, Techn. Paper Ser. 860078
- Hagiwara, M. Baba, Y. Miura, T. Hasegawa, T. Tanabe, Z, Ijimara, K. “Development of Corrosion Resistant Aluminium Heat Exchanger Part 1: Development of New Aluminium Alloy Sheets for Sacrificial Anode” SAE, Technical Paper Series 860080
- Lindgren. S. “Radiator from Sew Zealand” Teknisk Rapport LBC 142 1962
- La Bastille. A. “Acid Rain - How Great a Menace” National Geographic Soc 160 1981 5 Nov 66
- Holm, R. “Examination of Six Corroded Radiator Core Samples Received from Australia” Sept 10 1982