Plasma-Transferred Arc

Fauchais, Pierre; Heberlein, J.; Boulos, Maher I.

doi:10.1007/978-0-387-68991-3_10

Cited by 2 publications

(2 citation statements)

References 49 publications

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“…It is additionally cost effective and can be found in industry. One great advantage of PTA is the ability of producing relatively thick coatings (up to about 6 mm) with metallurgical bonding and very low dilution [5], which are essential for applications in components that are subjected to severe wear conditions. PTA has been successfully applied to produce Fe-based Metal Matrix Composites with various reinforcing particles for hard surfacing and improved wear resistance [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Directly considering the processes' cost, welding seems to be the most advantageous [4]. A welding process that has been widely investigated corresponds to Plasma Transferred Arc technique (PTA) [5][6][7] since it leads to the deposition of homogeneous and dense coatings, with high degree of reproducibility. It is additionally cost effective and can be found in industry.…”

Section: Introductionmentioning

confidence: 99%

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Wear resistant coatings of boron-modified stainless steels deposited by Plasma Transferred Arc

Sigolo

Soyama

Zepon

et al. 2016

Surface and Coatings Technology

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In this research work the microstructure and wear resistance of boron-modified stainless steel coatings were investigated. The coatings were produced by Plasma Transferred Arc (PTA) with powders of supermartensitic and superduplex stainless steel with 1 and 3 wt.% B addition, respectively. The deposition was carried out on AISI 4140 steel substrate. Microstructural characterization revealed dendritic growth in both cases; however, the amount of borides formed was quite different, around 14% for supermartensitic with 1 wt.% B and 32% for superduplex with 3 wt.% B. Thermodynamic calculations were used to predict phase formation and solidification paths resulting in good agreement with the experimental results. The wear resistance was characterized by dry sand/rubber wheel and reciprocating pin-on-plate tests. In dry sand/rubber wheel the volume loss of quenched and tempered AISI 4140 was superior to supermartensitic steel with 1 wt.% B, nonetheless it was comparable to superduplex steel with 3 wt.% B. On the other hand, regarding the pin-on-plate tests, the wear resistance of both boron-modified steels was far superior. The formation of hard borides increased both the hardness and overall wear resistance of boron-modified stainless steels. Additionally, the high boride fraction was responsible for the superior wear performance of superduplex with 3 wt.% B.

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