Optimization of weld bead geometry in plasma transferred arc hardfaced austenitic stainless steel plates using genetic algorithm

Siva, K.; Murugan, N.; Logesh, R.

doi:10.1007/s00170-008-1451-3

Cited by 50 publications

(28 citation statements)

References 11 publications

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“…3 offering both optimal protection with minimal thermal distortion of parts and high deposition rates in single layer deposits [4,5]. However, the properties and the quality of deposits are strongly dependent on the dilution of the substrate promoted by the PTA process.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…To overcome this shortcoming, protective coatings are normally applied in some zones of molds surfaces with the aim of increasing their lifetime in harsh environments [2,3]. A wide diversity of coating materials have been successfully applied to protect the surface of these components, such as: cobalt, iron and nickel alloys [2,4,5]. The latter have been especially used due to their outstanding performance under extreme high temperature conditions [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…A wide diversity of coating materials have been successfully applied to protect the surface of these components, such as: cobalt, iron and nickel alloys [2,4,5]. The latter have been especially used due to their outstanding performance under extreme high temperature conditions [5][6][7][8]. Several hardfacing and thermal spraying processes have been used to coat the molds: (i) plasma transferred arc (PTA) and gas tungsten arc welding (GTAW), (ii) flame spraying (FS), high velocity oxy fuel (HVOF) and atmospheric plasma spraying (APS).…”

Section: Introductionmentioning

confidence: 99%

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Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron

Fernandes¹,

Polcar²,

Loureiro³

et al. 2015

Surface and Coatings Technology

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In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 ºC) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the grey cast iron. At high temperatures, coating produced with high dilution displayed the highest wear resistance between all the samples. This is attributed to the formation of a protective tribo-layer resulting from the agglomeration of a high amount of oxide debris due to its lower oxidation resistance when compared to the sample produced with low dilution.

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Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron

Fernandes¹,

Polcar²,

Loureiro³

et al. 2015

Surface and Coatings Technology

View full text Add to dashboard Cite

show abstract

“…Recentemente, alguns trabalhos têm sido encontrados na literatura apresentando estudos sobre a aplicação de revestimentos por diversos processos, no entanto, tais trabalhos avaliam somente as características geométricas e diluição através da deposição de apenas um cordão de solda [7][8][9][10].…”

Section: Defeitos Entre Passesunclassified

“…A qualidade de um revestimento obtida através da deposição de camadas de solda sobre um substrato está, em geral, relacionada com a correta escolha dos parâmetros de soldagem, de forma a produzir revestimentos com espessura adequada e com reduzido grau de diluição, especialmente em soldagens dissimilares de ligas que devem apresentar alta resistência à corrosão [5,6]. Recentemente, alguns trabalhos têm apresentado estudos sobre a aplicação de revestimentos por diversos processos, no entanto, nas avaliações são considerados somente os resultados de diluição e características geométricas para apenas um cordão de solda [7][8][9][10]. É obvio que o estudo das condições operacionais com simples cordão é capaz de fornecer informações relevantes sobre a diluição, penetração, reforço, etc., além de reduzir o tempo e a quantidade de experimentos.…”

Section: Introductionunclassified