...Maryam Eslami, PhD; Daniel Ellis; Vivek Pachchigar; Rebekah Wilson; Mohan Sankaran; Daniel V. Krogstad An atmospheric-pressure, microwave-powered plasma process was used for surface cleaning and fabrication of Zr, Si, and Zr/Si-based bilayer conversion coatings on mild steel for corrosion...

...C.F. Glover; V. Romanovski; E. Romanovskaia; G. Bhargava; C. Ren; A. Surendranath; E. Houze; J.R. Scully The efficacy of an electrocoated system that uses a Zr-based conversion coating was assessed to protect galvannealed (GA) steel. The aim was to determine if a Zr-based system has the potential...

... in Table  2 for easy reference. Table 1. Summary of the Sequence of the Phosphating Process 07 December 2021 12 May 2021 12 May 2021 © 2021, AMPP 2021 corrosion resistance conversion coating galvanized steel glow discharge optical emission spectroscopy Mg-Al-Zn...

...C.F. Glover; M.L.C. Lim; J.R. Scully This study investigates the effect of surface treatment on the formation of Zr-based conversion coatings on AA7075-T6 automotive aluminum alloys and their resistance to filiform corrosion (FFC). Two different surface treatments were studied: (i) alkaline...

... . 30 January 2018 31 March 2018 31 March 2018 © 2018, NACE International 2018 anaerobic conversion coating crevice corrosion galvanized steel inorganic coatings rare earths Corrosion protection of hot dipped metallic coatings, such as galvanized (zinc coated) steel...

... in the Unified Numbering System, published by the Society of Automotive Engineers (SAE International) and cosponsored by ASTM International. † Trade name. aluminum alloy aluminum-rich primer conversion coating primer trivalent chromium passivation Metal-rich primers have a long...

...B. Kannan; J.R. Scully The effect of conversion coatings on the corrosion protection of AA2024-T351 by magnesium-rich primer (MgRP) was evaluated in topcoated and non-topcoated, scribed conditions. Protection of remote scratches and global protection by the coating after exposure in selected...

...B. Kannan; A.D. King; J.R. Scully The role of different surface pretreatments on the sacrificial anode-based cathodic, as well as barrier, protection mechanisms afforded by magnesium-rich, nonchromium primer (MgRP) with and without topcoat (TC) has been investigated. Conversion coatings (chromate...

...B.C. Rincon Troconis; G.S. Frankel The blister test was used to assess the effect of various pre-treatments, including chromate conversion coatings, non-chromium process conversion coatings, and trivalent chromium process coatings, on the adhesion strength of acetoacetate coatings to aluminum alloy...

...B. Ramezanzadeh; M.M. Attar In this study, a coating system including conversion coating and organic paint was used on the steel samples. The steel samples were treated by Cr(III), Cr(VI), Cr(III)-Co(II), and Cr(III)-Ni(II) conversion coatings. Epoxy coatings were reinforced with nano-zinc oxide...

...X.B. Chen; N. Birbilis; T.B. Abbott The corrosion susceptibility of Mg and its alloys in humid and aqueous environments limits their widespread application. The performance of several conversion coating technologies is reviewed herein. In addition to the assessment of performance based...

...Y.-K. Song; F. Mansfeld A new conversion coating process for electrogalvanized (EG) steel based on a cerium nitrate (Ce[NO₃]₃) solution with some additives has been developed that reduces the total treatment time to 70 s. The corrosion current densities of untreated...

...C. Wang; F. Jiang; F. Wang New golden, yellow-colored cerium chemical conversion coatings on aluminum alloy 2024-T3 (AA2024-T3 [UNS A92024]) surface at room temperature were obtained by immersing the alloy into a cerium solution containing zinc chloride (ZnCl₂) and hydrogen peroxide...

...H. Guan; R.G. Buchheit In this paper, the formation, chemistry, morphology, and corrosion protection of a new type of inorganic conversion coating is described. This coating, referred to as a vanadate conversion coating (VCC), forms on aluminum alloy substrates in a matter of minutes during simple...

...Y.J. Warburton; D.L. Gibbon; K.M. Jackson; L.F. Gate; A. Rodnyansky; P.R. Warburton Iron phosphate conversion coatings are used widely in the pretreatment industry to enhance paint adherence to metal substrates and therefore improve corrosion resistance. However, very limited nonproprietary...