Mechanism and kinetics of the formation of zinc pack coatings

Vourlias, G.; Pistofidis, N.; Chrissafis, K.; Pavlidou, E.; Stergioudis, G.

doi:10.1007/s10973-006-8237-3

Cited by 10 publications

(6 citation statements)

References 11 publications

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“…[15][16][17] The final result is the deposition of metallic Al or Mg on the surface of the Cu substrate, while metallic chlorides are regenerated, recycling the chemical process. 17,18 This technique is referred in several publications, in which most of them deal with aluminide coatings on steels and Ni base alloys for oxidation protection. [19][20][21] Few publications are reported to deal with the deposition of Al coatings on copper components by pack cementation method.…”

Section: Introductionmentioning

confidence: 99%

Protection of Cu components with Mg and Al coatings deposited by pack cementation

Stathokostopoulos¹,

Chaliampalias²,

Pavlidou³

et al. 2014

Surface Engineering

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The growth of Mg and Al coatings on copper by pack cementation is examined in this work by investigating the mechanism of the process, the effect of temperature and heating time on the coating structure. The experiments were undertaken at temperatures ranging from 550 to 600uC, while the duration of the process varied from 30 min to 3 h. It was found that the magnesium coatings consist of two phases corresponding to MgCu 2 and CuMg 2 . These phases appeared as distinguished layers or mixed with each other, depending on the deposition temperature and duration. On the other hand, the aluminium coatings consist of a single Al 4 Cu 9 phase whose thickness increases with deposition time and temperature. Finally, the oxidation resistance was also evaluated by thermogravimetric measurements, which revealed that the coated samples have superior resistance to bare copper, while Al coated coupons had the best performance when exposed in high temperature environment.

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Section: Introductionmentioning

confidence: 99%

Protection of Cu components with Mg and Al coatings deposited by pack cementation

Stathokostopoulos¹,

Chaliampalias²,

Pavlidou³

et al. 2014

Surface Engineering

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“…9b) are described by Eq. (2). The values of K and n are listed in Table 2 for each zinc halide used.…”

Section: Kinetic Of Fe-zn Layer Growth With Specific Amounts Of Znxmentioning

confidence: 99%

“…Steel substrates benefit from the galvanic and barrier protection of a zinc or zinc alloy coating. The predominant method for the creation of protective zinc layers in steel processing industries is hot dip galvanizing [1,2]. Fe-Zn phases with a pure zinc layer on top are formed by immersing steel in a bath of molten zinc [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Despite the effectiveness of hot dip galvanizing [3,8] sherardizing has several advantages. Sherardizing leads to highly uniform layer thicknesses that allows coating of irregular shapes and threaded parts [2,6]. Due to its lower process temperature compared to hot dip galvanizing sherardizing conserves functional properties like hardness [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The comparatively little research on sherardizing focuses on pack cementation [1,2,8,[11][12][13]. In most of these studies the zinc powder contains a halide activator (NH 4 Cl, ZnCl 2 ).…”

Section: Introductionmentioning

confidence: 99%

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