ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
The aim of this work is to evaluate the difference in the corrosion resistance betweenunleaded containing bismuth automotive epoxy primers and leaded one. It was also discussed theeffect of zinc phosphate pretreatment. The specimen coated unleaded epoxy primer showed 0.5Vhigher corrosion potential than that of bare steel. The result of salt spray test did not indicateremarkable difference of corrosion resistance in all specimens above 10 [removed info] thickness up to 1200hours. In the cyclic corrosion test, unleaded epoxy primers on phosphated substrate performedgood corrosion properties until 800 hours. The lead free primer performed the equivalentcorrosion resistance as leaded coating on phosphated steel, but slightly inferior to that of leadedon bare steel. These results show that the pre-treatment of zinc phosphating is effective as well aspigment changing in performing anti-corrosion properties in automotive bodies
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.1537.pdf