Laser cladding of Inconel 625 wire for corrosion protection

Abioye, T.E.; McCartney, D.G.; Clare, Adam T.

doi:10.1016/j.jmatprotec.2014.10.024

Cited by 272 publications

(93 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Presently, the service life of such elements is increased by the surfacing of layers of nickel alloys, particularly having the composition of alloy Inconel 625, providing appropriate creep resistance at high temperature and corrosion resistance in the aggressive environment of fluorides and chlorides. Presently used surfacing methods include gas-shielded metal arc surfacing (using pulsed current and the low-energy CMT method), plasma-powder surfacing, laser surfacing and non-consumable electrode inert gas surfacing (TIG) [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Iron content higher than that mentioned above reduces corrosion resistance, whereas an excessive thickness increases both the weight of structures and the costs of surfacing processes. In turn, the microsegregations of elements, particularly Nb and Mo, trigger the formation of intermetallic phases decreasing the corrosion resistance of overlay welds [2,3,7,8,10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Properties of Nickel Alloy Overlay Welds Plasma Cladded on Creep-Resistant Steel Tubes

Pfeifer

2018

eBIS

View full text Add to dashboard Cite

Abstract:The article presents tests aimed to develop technological parameters of the plasma surfacing of Inconel 625 overlay welds onto boiler tubes (φ 45 × 5 mm) made of steel 13CrMo4-5, providing the content of iron on the overlay weld surface below 5%. The research work involved macroscopic metallographic tests of overlay welds, the identification of the chemical composition of the overlay weld surface as well as microscopic metallographic tests and the microanalysis of the chemical composition across the overlay weld. It was ascertained that, under certain conditions, the use of plasma surfacing enables the obtainment of high-quality single-run overlay welds having a thickness of below 2 mm and characterised by the minimum stirring of the overlay weld metal with the substrate metal as well as the obtainment of an iron content of 2.5% on the overly weld surface.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Nickel Alloy Overlay Welds Plasma Cladded on Creep-Resistant Steel Tubes

Pfeifer

2018

eBIS

View full text Add to dashboard Cite

show abstract

“…Por isto, é crescente o estudo da utilização destes materiais nobres como revestimento de aços C-Mn. É bem conhecido e apresentado na literatura o bom desempenho de superligas de níquel, como Inconel 625, em ambientes corrosivos [6][7][8][9][10][11][12][13].…”

Section: Introductionunclassified

EFEITO DE DIFERENTES TRATAMENTOS TÉRMICOS SOBRE MICROESTRUTURA E MICRODUREZA DE UM SISTEMA AÇO C-Mn/REVESTIMENTO DE INCONEL 625

Trindade¹,

Faria²,

Souza³

et al. 2017

Tecnol. Metal. Mater. Min.

View full text Add to dashboard Cite

ResumoA utilização de tubos de aço C-Mn na indústria de óleo e gás é muito comum desde o nascimento desta indústria. Mesmo com a grande evolução da metalurgia destes aços ao longo das últimas décadas, o desafio de desempenho em ambientes severos de corrosão devido às características reativas (H 2 S, CO 2 ) do petróleo e seus derivados, impõem uma nova era para a fabricação de tubos. A solução tecnológica mais direta seria a utilização de aços com alta liga (Ni, Cr) e/ou superligas de níquel. No entanto, os custos de produção tornariam inviáveis pelo alto custo destes materiais. Neste contexto, é crescente iniciativas de pesquisas para o desenvolvimento de overlay e/ou cladding, ou seja, revestimentos de aços C-Mn usando superligas de níquel e aços inoxidáveis. Neste trabalho, foi utilizada a deposição de uma camada da superliga de níquel Inconel 625 através do processo laser. Uma das desvantagens da deposição a laser ou qualquer outro processo de fusão é a formação de uma região de descontinuidade microestrutural no aço, chamada de ZTA (zona termicamente afetada pelo calor). Neste estudo, diferentes rotas de tratamentos térmicos foram investigadas com o objetivo de eliminar a ZTA e preservar as características originais do substrato e do revestimento. Palavras-chave: Revestimento inconel 625/aço C-Mn; Perfil de microdureza; Transformação de fase; Martensita revenida; ZTA; Tratamentos térmicos. EFFECT OF DIFFERENT HEAT TREATMENTS ON MICROSTRUCTURE AND MICROHARDNESS OF A C-Mn STEEL/INCONEL 625 COATING SYSTEM AbstractThe application of C-Mn steel pipe in the oil & gas industry is quite common since starting of this industry. Even with the great evolution of the metallurgy of this type of steel over the last decades, the challenge is to overcome the corrosion severity caused by sour (H 2 S, CO 2 ) species present in the petroleum and its derivates. The direct technological solution would be to replace the C-Mn steel by Ni-based superalloys and/or stainless steels. However, the high costs of these materials would make several projects impracticable. In this context, there are several initiatives in order to develop overlay and/or cladding, that means, coatings of C-Mn steels using superalloys and stainless steels. In this work, it was used an overlay deposition of Inconel 625 on the surface of a C-Mn steel using the laser process. A disadvantage of laser deposition, as it is for any deposition melting process, is the formation of a microstructural discontinuity in the steel substrate caused by the thermal cycle (HAZ = heat affected zone). In this study, different heat treatment routes were investigated aiming to eliminate the HAZ preserving the original characteristics of the substrate and of the coating.

show abstract

“…However, the manufacturing of the entire pipe body using these noble materials can sharply affect the cost, since these materials are very expensive when compared to C-Mn steels. A technological solution is to develop appropriate coatings using these noble materials on the surface of C-Mn steel pipes (Abioyea et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of hydrogen-Induced cracking resistance of the In625 laser coating system on a C-Mn steel substrate

et al. 2017

View full text Add to dashboard Cite

The corrosion of C-Mn steels in the presence of hydrogen sulfide (H 2 S) represents a significant challenge to oil production and natural gas treatment facilities. The failure mechanism induced by hydrogen-induced cracking (HIC) in a Inconel 625 coating / C-Mn steel has not been extensively investigated in the past. In the present work, an API 5CT steel was coated with In625 alloy using laser cladding and the HIC resistance of different regions, such as the coating surface, the substrate and HAZ, were evaluated. SEM observations illustrated that all HIC cracks were formed at the hard HAZ after 96h of exposure. No HIC cracks were observed in the substrate and the In625 coating after the same exposure duration. Pitting was recorded in the substrate caused by non-metallic inclusion dissolving.

show abstract

Laser cladding of Inconel 625 wire for corrosion protection

Cited by 272 publications

References 13 publications

Structure and Properties of Nickel Alloy Overlay Welds Plasma Cladded on Creep-Resistant Steel Tubes

Structure and Properties of Nickel Alloy Overlay Welds Plasma Cladded on Creep-Resistant Steel Tubes

EFEITO DE DIFERENTES TRATAMENTOS TÉRMICOS SOBRE MICROESTRUTURA E MICRODUREZA DE UM SISTEMA AÇO C-Mn/REVESTIMENTO DE INCONEL 625

Evaluation of hydrogen-Induced cracking resistance of the In625 laser coating system on a C-Mn steel substrate

Contact Info

Product

Resources

About