In this paper, electrodeposited tinplates with different coating mass have been characterised by SEM, XRD, XPS, and EDS. The results indicate that a much lower coating mass may lead to an ununiformly distributed tin coating layer. To obtain a qualified tin coating with lower tin mass, the roughness of the base steel surface should be strictly controlled to gain a flat surface with lower roughness and defects. Cr2O3 and Cr(OH)3 were found as the main composition of passivation film with Cr2O3 locating at the outermost film surface, and the amount of Sn element increases and Cr element decreases as a function of depth from the surface of tin coating. In addition, the amount of Fe impurity in the plating bath should be strictly controlled as its presence in tin coating is harmful to coating corrosion resistance.
FatobaOS, PopoolaAPI, FedotovaT.Characterization and corrosion behaviour of Zn-Sn binary alloy coatings in 0.5 M H2SO4 solution. J Electrochem Sci Technol. 2015;6:65–74. doi: 10.5229/JECST.2015.6.2.65
2.
RenLS, HouYX, LiCJ, Production technology optimization of food grade ultra-thin electroplating tin substrate. Shandong Metall. 2013;35:10–16.
3.
HuLX, ChengJ, ZhanW, A study of methylsulphonate tin electroplating process. Electroplat Pollut Control. 2009;29:29–32.
4.
ChangLM, ZhouY, LiuW, Pulse plated Zn transition layer in electroplating Sn–Ni alloy coatings on magnesium alloys. Mater Corros. 2015;66:434–441. doi: 10.1002/maco.201407598
5.
WintN, GearyS, McMurrayHN, The kinetics and mechanism of atmospheric corrosion occurring on tin and iron-tin intermetallic coated steels. J Electrochem Soc. 2015;162:C775–C784. doi: 10.1149/2.0681514jes
6.
XiaDH, SongSZ, WangJH, Corrosion behavior of tinplate in NaCl solution. Trans Nonferr Met Soc China. 2012;22:717–724. doi: 10.1016/S1003-6326(11)61236-3
7.
SharmaA, JangYJ, JungJP.Effect of current density on morphology of electroplated tin. Surf Eng. 2015;31:458–464. doi: 10.1179/1743294414Y.0000000427
SunJ, AnCQ, YuXZ, XPS analysis of chromium element in chromate passivation film formed on tinplate in different surface state. Spectrosc Spect Anal. 2009;29:544–547.
10.
MohanS, RajasekaranN.Pulse electrodeposition of tin from sulphate bath. Surf Eng. 2009;25:634–638. doi: 10.1179/026708408X383957
11.
HaHY, KangJY, YangJ, Role of Sn in corrosion and passive behavior of extruded Mg-5 wt%Sn alloy. Corros Sci. 2016;102:355–362. doi: 10.1016/j.corsci.2015.10.028
12.
ZhongXK, ZhangGA., QiuYB, The corrosion of tin under thin electrolyte layers containing chloride. Corros Sci. 2013;66:14–25. doi: 10.1016/j.corsci.2012.08.040
13.
SunJ, AnCQ, TanY.Effect of chromium content and corrosion resistance for tinplate with different passivation methods. J Mater Eng. 2010;3:25–28.
14.
XiaDH, WangJH, JiangYX, Corrosion behavior of novolac epoxy coated tinplate system in energy drink. J Tianjin Univ (Sci Technol). 2013;46:503–509.
15.
ZengL, LiN, LiDY.Detection and analysis methods for oxide film and passive film on tinplate. Electroplat Finish. 2010;29:41–45.
16.
ZhangQF, GaoHYuQS, Research status of chromium-free passivation technology for tinplate. Electroplat Pollut Control. 2014;34:8–10.
17.
HuangBX, TornatoreP, LiYS.IR and Raman spectroelectrochemical studies of corrosion films on tin. Electrochim Acta. 2001;46:671–679. doi: 10.1016/S0013-4686(00)00660-5
18.
AraznaA, KrolikowskiA, KoziolG, The corrosion characteristics and solderability of immersion tin coatings on copper. Mater Corros. 2013;64:914–925. doi: 10.1002/maco.201106434
19.
WinnickiM, BaszczukA, Rutkowska-GorczycaM, Corrosion resistance of tin coatings deposited by cold spraying. Surf Eng. 2016;32:691–700. doi: 10.1080/02670844.2016.1190064
20.
LiuJC, ParkSW, NagaoS, The role of Zn precipitates and Cl− anions in pitting corrosion of Sn–Zn solder alloys. Corros Sci. 2015;92:263–271. doi: 10.1016/j.corsci.2014.12.014
21.
XiaDH, SongSZ, WangJH, Corrosion behavior of tinplate in a functional beverage. Acta Phys- Chim Sin. 2012;28:121–126.
