Analysis of naturally etched surface of brass sheathing from a nineteenth-century shipwreck
Abstract
The Akko Tower Wreck is apparently the remains of a 25-m-long merchant brig, dated to the first half of the nineteenth century. During the 2015 underwater excavation, a piece of brass sheet was retrieved from the shipwreck and its surface and bulk were examined by metallurgical analyses. The examinations revealed a unique example of almost two hundred years’ natural etching, which took place in the sea underwater environment. The surface of the sheet was covered with different copper and zinc oxides, which were identified by XRD analysis. Observation of the naturally etched surface with multi-focal light microscopy and SEM-EDS analysis indicated a microstructure of annealed alpha-brass, similar to that of its bulk. S-OES chemical analysis of the bulk revealed a composition of 65.0 wt% Cu, 34.4 wt% Zn and 0.6 wt% Pb. Based on the thickness of the sheet and its good state of preservation, it is suggested that it was used as sheathing to protect the hull against marine organisms, and to improve the sailing qualities of the ship. The results provide further information about the Akko Tower shipwreck; and expand our knowledge regarding the corrosion processes and preservation of brass during a long burial period in marine environments.
References
E.D. Clarke, Travels in Various Countries of Europe, Asia and Africa, Part the second, Greece, Egypt and the Holy Land, Section the first Vol. IV, T. Caddell and W. Davies, London (1817), pp. 88–89.
R.C. Alderson, Notes on Acre and Some of the Coast Defences in Syria, Papers on Subjects Connected with the Duties of the Corps of Royal Engineers VI 28, John Weale, London (1843), pp. 39–48.
C. La Jonquière, L’expédition d’Egypte, 1798–1801, Vol. IV, H. Charles-Lavauzelle, Paris (1900).
R.C. Anderson, Naval Wars in the Levant 1559–1853, University Press of Liverpool, Liverpool (1952), pp. 372–373, 561–564.
A. Rustum, Notes on Akka and its Defences under Ibrahim Pasha, Archaeological Congress of Syria and Palestine, American University of Beirut, Beirut (1926).
T.H. Molyneux, Expedition to the Jordan and the Dead Sea, J. Royal Geograph. Soc. London 18 (1948) 104–130.
A. Flinder, E. Linder, E.T. Hall, The survey of the ancient harbour of Akko 1964–1966, in: M. Heltzer, A. Segal, D. Kaufman (Editors), Studies in the Archaeology and History of Ancient Israel, in Honour of Moshe Dothan, Haifa University Press, Haifa (1992), pp. 199–225.
A. Raban, A shipwreck from Napoleon's siege of Akko (1799), in: M. Yedaya (Editor), The Western Galilee Antiquities (in Hebrew), Tel Aviv (1986), pp. 195–208.
J.R. Steffy, The Napoleonic Wreck: A Workshop in Ship Construction, Unpublished Report, Institute of Nautical Archaeology, Texas A&M University, College Station, Texas (1983).
C. Cvikel, The Akko Tower Wreck, Israel: A summary of the first two excavation seasons, Intern. J. Naut. Archaeo. 54(2) (2016) 406–422.
M. Cohen, D. Ashkenazi, Y. Kahanov, A. Stern, S. Klein, D. Cvikel, The brass nails of the Akko Tower Wreck (Israel): Archaeometallurgical analyses, Metallogr. Microstruct. Anal. 4(3) (2015) 188–206.
A. Hauptmann, R. Maddin, M. Prange, On the structure and composition of copper and tin ingots excavated from the shipwreck of Uluburun, Bull. Amer. Sch. Orient. Res. 328 (2002) 1–30.
M. Eliyahu, O. Barkai, Y. Goren, E. Eliaz, Y. Kahanov, D. Ashkenazi, The iron anchors from the Tantura F shipwreck: typological and metallurgical analyses, J. Archaeo. Sci. 38 (2011) 233–245.
D. Ashkenazi, D. Cvikel, N. Iddan, E. Mentovich, Y. Kahanov, M. Levinshtein, Archaeometallurgical study of the brass cases from the Akko 1 shipwreck, J. Archaeo. Sci. 38(9) (2011) 2410–2419.
D. Cvikel, D. Ashkenazi, A. Stern, Y. Kahanov, Archaeometallurgical analysis of a 12-pdr wrought-iron cannonball from the Akko 1 shipwreck, Mater. Character. 83 (2013) 198–211.
D. Ashkenazi, D. Cvikel, A. Stern, S. Klein, Y. Kahanov, Metallurgical characterization of brass objects from the Akko 1 shipwreck, Israel, Mater. Character. 92 (2014) 49–63.
Y. Kahanov, D. Ashkenazi, D. Cvikel, S. Klein, R. Navri, A. Stern, Archaeometallurgical analysis of metal remains from the Dor 2006 shipwreck: A clue to the understanding of the transition in ship construction, J. Archaeo. Sci. Rep. 2 (2015) 321–332.
D. Cvikel, T. Ben-Artzi, D. Ashkenazi, N. Iddan, A. Stern, Y. Kahanov, A box containing carpenter’s accessories from the Akko 1 Shipwreck, Israel: Archaeometallurgical analysis of surviving ironwork, Archaeometry 58(3) (2016) 427–440.
D. Cvikel, D. Ashkenazi, The Dor 2002/2 shipwreck, Israel: Characterization of surviving ironwork, Metallogr. Microstruct. Anal. 5(1) (2016) 16–27.
G.F. Van der Voort (Ed.), Metallography: An Introduction, Metallography and Microstructures, ASM Handbook vol. 9, ASM International, OH (2004), pp. 3–20.
F.A. Paneth, The discovery and earliest reproductions of the Widmanstätten figures, Geochim. Cosmochim. Acta. 18(3-4) (1960) 176–182.
R.L. Folk, Henry Clifton Sorby (1826–1908), the founder of petrography, J. Geolog. Edu. 3(2) (1965) 43–47.
N.D. Greene, G.A. Teterin, Development of brass etchants by electrochemical techniques, Corros. Sci. 12(1) (1972) 57–63.
J.R. Vilella, Metallographic Technique for Steel, Metals Park, Cleveland: American Society for Metals, OH (1938), pp. 26–52.
D. Cvikel, E.D. Mentovich, D. Ashkenazi, Y. Kahanova, Casting techniques of cannonballs from the Akko 1 shipwreck: Archaeometallurgical investigation, J. Min. Metall. Sect. B-Metall. 49(1) (2013) 107–119.
A. Aronson, D. Ashkenazi, O. Barkai, Y. Kahanov, Archaeometallurgical investigation of the iron anchor from the Tantura F shipwreck, Mater. Character. 78 (2013) 108–120.
J. Bezecný, A. Dubec, Metallographic and finite element evaluation of plastic deformation during the forming process of cartridge brass casings, Procedia Eng. 136 (2016) 137–142.
W. Ozgowicz, E. Kalinowska-Ozgowicz, B. Grzegorczyk, The microstructure and mechanical properties of the alloy CuZn30 after recrystallizion annealing, J. Achievem. Mater. Manuf. Eng. 40(1) (2010) 15–24.
D. Cvikel, D. Ashkenazi, A. Inberg, I. Shteiman, N. Iddan, Y. Kahanov, Two nails 2400 years apart: Metallurgical comparison between copper nails of the Ma‘agan Mikhael ship and its replica, Metallogr. Microstruct. Anal. 6(1) (2017) 12–21.
D. Ashkenazi, A. Inberg, D. Langgut, N. Hendler, D. Cvikel, Brass–iron couple and brass–iron–wood ternary system of metal objects from the Akko 1 shipwreck (Israel), Corros. Sci. 110 (2016), 228–241.
M.I. Barrena, J.M. Gomez de Salazar, A. Soria, Corrosion of brass archaeological blinker: Characterization of natural degradation process, Mater. Let. 62(3) (2008) 3944–3946.
O. Papadopoulou, J. Novakovic, P. Vassiliou, E. Filippaki, Y. Bassiakos, Chemical corrosion by chlorides on ancient-like bronzes and treatment by hydrogen glow discharge plasma, Appl. Phys. A 113(4) (2013) 981–988.
A. Srivastava, R. Balasubramaniam, Material characterization of ancient Indian copper, Bull. Mater. Sci. 26 (2003) 593–600.
G.A. El-Mahdy, Electrochemical impedance study on brass corrosion in NaCl and (NH4)2SO4 solutions during cyclic wet–dry conditions, J. App. Electrochem 35(3) (2005) 347–353.
H. Fan, S. Li, Z. Zhao, H. Wang, Z. Shi, L. Zhang, Inhibition of brass corrosion in sodium chloride solutions by self-assembled silane films, Corros. Sci. 53(12) (2011) 4273–4281.
M.C. Bastos, M.H. Mendonça, M.M.M. Neto, M.M.G.S. Rocha, L. Proença, I.T.E. Fonseca, Corrosion of brass in natural and artificial seawater under anaerobic conditions, J. Appl. Electro. 38 (2008) 627–635.
A. Mathiazhan, R. Joseph, K.P. Narayanan, P. Seralathan, Corrosion behaviour of brass in the Vembanad estuary, India J. Marine Sci. Tech. 18(5) (2010) 719–722.
C.I.S. Santos, M.H. Mendonca, I.T.E. Fonseca, Corrosion of brass in natural and artificial seawater, J. Appl. Electrochem. 36(12) (2006) 1353–1359.
P. Stoffyn-Egli, D.E. Buckley, J.A. Clyburne, Corrosion of brass in a marine environment: Mineral products and their relationship to variable oxidation and reduction conditions, App. Geochemis. 13(5) (1998) 643–650.
A. Doménech-Carbó, M. Doménech-Carbó, M.I. Martínez-Lázaro, Electrochemical identification of bronze corrosion products in archaeological artefacts. A case study, Microchim. Acta 162(3) (2008) 351–359
O. Papadopoulou, P. Vassiliou, S. Grassini, E. Angelini, V. Gouda, Soil‐induced corrosion of ancient Roman brass–A case study, Mater. Corros. 160. 67(2) (2006) 160–169.
M. Wadsak, I. Constantinides, G. Vittiglio, A. Adriaens, K. Janssens, M. Schreiner, F.C. Adams, P. Brunella, M. Wuttmann, Multianalytical study of patina formed on archaeological metal objects from Bliesbruck-Reinheim, Microchim. Acta 133(1) (2000) 159–164.
A. N. Shugar, Portable X-ray fluorescence and archaeology: Limitations of the instrument and suggested methods to achieve desired results, in: R.A. Armitage and J.H. Burton (Eds.), Archaeological Chemistry VIII, American Chemical Society, Washington DC (2013), pp. 173–193.
C. Martini, C. Chiavari, F. Ospitali, F. Grazzi, A. Scherillo, C. Soffritti, G.L. Garagnani, Investigations on a brass armour: Authentic or forgery?, Mater. Chem. Phys. 142 (2013) 229–237.
H.M. De Rosa, N.C. Ciarlo, M. Pichipil, A. Castelli, 19th century wooden ship sheathing. A case of study: the materials of Puerto Pirámides 1, Península Valdés, Proc. Mater. Sci. 9 (2015) 177–186.
J.M. Bingeman, J.P. Bethell, P. Goodwin, A.T. Mack, Copper and other sheathing in the Royal Navy, Inter. J. Naut. Archaeo. 29(2) (2000) 218–229.
D. Ashkenazi, H. Gitler, A. Stern, O. Tal, Metallurgical investigation on fourth century BCE silver jewellery of two hoards from Samaria, Sci. Rep. 7 (2017) 1–14.
I.D. MacLeod, Corrosion of copper alloys on historic shipwrecks and materials preformens, Corros. Prevent. (2016) 1–10.
P. Qiu, C. Leygraf, Initial oxidation of brass induced by humidified air, Appl. Surf. Sci. 258 (2011) 1235–1241.
T.S. Rao, K.V.K. Nair, Microbiologically influenced stress corrosion cracking failure of admiralty brass condenser tubes in a nuclear power plant cooled by freshwater, Corros. Sci. 40(11) (1998) 1821–1836.
M. Staniforth, The introduction and use of copper sheathing-A history, Newsletter Australian Instit. Maritime Archaeo. 9 (1985) 21–48.
G.M. Ingo, T. De Caro, C. Riccucci, E. Angelini, S. Grassini, S. Balbi, P. Bernardini, D. Salvi, L. Bousselmi, A. Cilingiroglu, M. Gener, Large scale investigation of chemical composition, structure and corrosion mechanism of bronze archaeological artefacts from Mediterranean Basin, Appl. Phys. A 83(4) (2006) 513–520.
W. Jiang, H. Mashayekhi, B. Xing, Bacterial toxicity comparison between nano-and micro-scaled oxide particles, Environm. Pollu. 157(5) (2009) 1619–1625.
N. Jones, B. Ray, K.T. Ranjit, A.C. Manna, Antibacterial activity of ZnO nanoparticle suspensions on a broad spectrum of microorganisms, FEMS, Microbio. Lett. 279(1) (2008) 71–76.
I.D. MacLeod, Formation of marine concretions on copper and its alloys, Intern. J. Naut. Archaeo. 11(4) (1982) 267–275.
I.K. Marshakov, Corrosion resistance and dezincing of brasses, Protec. Metals. 41(3) (2005) 205–210.
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