Salt fog corrosion behavior of high-velocity oxygen-fuel thermal spray coatings compared to electrodeposited hard chromium

Natishan, Paul M.; Lawrence, S. H.; Foster, Richard L.; Lewis, John F.; Sartwell, B.D.

doi:10.1016/s0257-8972(00)00671-x

Cited by 42 publications

(12 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This compound is highly toxic and its presence in electrolytic hard chromium baths is condemned. Electrolytic hard chromium coatings are mainly used for their wear resistance [3,4] and corrosion protection [5] according to the applications. Their replacement is difficult, because although they generate a real ecological problem, their mechanical properties and their lower cost make them particularly attractive.…”

Section: Introductionmentioning

confidence: 99%

Dry coatings and ecodesign

Serres

Hlawka

Costil

et al. 2009

Surface and Coatings Technology

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Dry coatings and ecodesign

Serres

Hlawka

Costil

et al. 2009

Surface and Coatings Technology

View full text Add to dashboard Cite

“…In the case of Al-based TS coatings applied to magnesium alloys and the assessment of their corrosion behaviour, the number of studies is relatively scarce [2,15,[18][19][20][21][22][23]. Similarly, the number of studies about Al-Si coatings on magnesium alloys even using several techniques is rare [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Corrosion behaviour of Mg–Al alloys with Al–11Si thermal spray coatings

Pardo¹,

Merino²,

Casajús³

et al. 2009

Materials & Corrosion

View full text Add to dashboard Cite

The corrosion resistance of AZ31, AZ80 and AZ91D Mg-Al alloys with Al-11Si thermal spray coatings was evaluated by electrochemical and gravimetric measurements in 3.5 wt% NaCl solution. The changes in the morphology and corrosion behaviour of the Al-11Si coatings induced by a cold-pressing post-treatment under 32 MPa were also examined. The as-sprayed Al-11Si coatings revealed high degree of porosity and poor corrosion protection, which resulted in galvanic acceleration of the corrosion of the magnesium substrates. The application of a cold-pressing post-treatment produced more compact Al-11Si coatings with better bonding at the substrate/coating interface and slightly higher corrosion resistance. However, interconnected pores remained in the cold-pressed coatings due to the low plasticity of the Al-11Si powder and galvanic corrosion of the substrate was observed after immersion in 3.5 wt% NaCl for 10 days.

show abstract

“…Traditionally, the improvement of the surface properties of the aluminum alloys, and particularly of those involved in aircraft and aerospace applications, has been the use of electrolytic hard chromium deposition (EHC). However, the strong environmental regulations issued in the past few years to decrease significantly the emissions of the highly toxic hexavalent chromium, synthesized during the deposition of EHC, have led to the development of different technologies also able to improve the surface properties of such materials, but more friendly from the environmental point of view [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Tensile and fatigue testing has been complemented with extensive SEM analysis of the fractured surfaces in order to obtained some information regarding the damage mechanisms associated with crack nucleation and growth in the coating-substrate system. No attempt has been made in order to study separately the corrosion behavior of the coated substrate in the absence of cyclic loading, which has been widely investigated by other authors [4,[18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%