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

Sigolo, Erich; Soyama, Juliano; Zepon, Guilherme; Kiminami, Cláudio Shyinti; Filho, Walter José Botta

doi:10.1016/j.surfcoat.2016.06.023

Cited by 49 publications

(16 citation statements)

References 27 publications

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“…Second, the effect of the high cooling rate promoted during the atomization stage may be preserved in the final microstructure. Although the hardness of spray-formed M3 HSS obtained in this study was low due to the formation of a higher proportion of primary MC carbides in the atomization stage with a high cooling rate, the relevant references show that the atomization stage has great application value in relation to the wear resistance of materials [ 13 , 14 , 19 , 50 ]. The effects of atomization and deposition on microstructure transformation should be considered when materials are prepared using SF.…”

Section: Discussionmentioning

confidence: 86%

Discussion of the Segregation and Low Hardness of Large-Diameter M3 High-Speed Steel Produced by Spray Forming

Liu

Hongxiao

et al. 2023

Materials

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As an advanced near-net-shape processing method in which directly preformed, semi-finished products are created from liquid metals, spray forming has become popular in the development and application of new materials and is supporting industrialization. However, as investigated in this work, the problems of segregation and low hardness exist in the actual industrialization process, particularly for large-diameter M3 high-speed steel. It was here found that the annual ring segregation morphologies were mostly distributed from the edge to 1/2R, with a large number of stripes primarily enriched in C, Mo, and Cr elements, and the degree of segregation was mild. The ring segregation was located at the 1/2R position, where the main elemental enrichments were C, W, Mo, Cr, and V, and the segregation degree was severe. The formation of segregation during deposition is described based on an equilibrium solidification model. A slow cooling rate and heat dissipation from the surface to the inside were judged to be the main factors causing segregation and changes in the carbide morphology. In terms of hardness, with the increase in the quenching temperature to 1230 °C, the tempering hardness increased significantly. The analysis shows that a faster cooling rate in the atomization stage caused the solidified droplets to exhibit rapid solidification characteristics, and there was a higher proportion of MC carbide in the deposited billet. MC carbides cannot be fully dissolved using the conventional heat treatment process, which decreases the C, Cr, Mo, and V contents in the solution and, thus, reduces the secondary hardening capability. The findings show that, when the spray forming process is used to prepare large-diameter materials, it should not be considered a rapid solidification technology simply because of its atomization stage. Moreover, more attention should be paid to the influence of microstructure transformation during atomization and deposition.

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Section: Discussionmentioning

confidence: 86%

Discussion of the Segregation and Low Hardness of Large-Diameter M3 High-Speed Steel Produced by Spray Forming

Liu

Hongxiao

et al. 2023

Materials

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“…Contributions in Fe-based alloys are in references [25][26][27][28][29][30][31][32][33][34][35][36][37][38], which include those of Fe-B-Nb, Fe-Nb-Al-Si-B, Fe-Cr-Nb-B, Fe-Co-B-Si-Nb, Fe-Co-Cr-M-Si-B-Y (M = Mo, Nb) and Fe-Nb-Zr-Ti-B-Cu, being evaluated their thermal stabilities and properties such as corrosion resistance; and more recently in the references [25,26,28,[39][40][41] dealing with the development of corrosion and wear resistant systems for coating applications.…”

Section: Glass Forming Ability and Fe-based Glassesmentioning

confidence: 99%

Development of Fe-based glass former alloys for thermal spray coatings with optimized corrosion and wear properties

Kiminami¹,

Koga²,

Bolfarini³

et al. 2023

Tecnol. Metal. Mater. Min.

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Corrosion and wear of alloys is a costly and hidden safety risk for components in petrochemical, agroindustry, and mining activities, which are key segments in Brazil and in many countries. Accelerating the development of highperformance and durable ferrous alloys and their insertion into engineering structural applications has never been more important. Glass former steels have drawn considerable attention in recent years, due to the remarkable combinations of strength and degradation control that can be achieved by tailoring corrosion and wear resistances, which places these alloys amongst the durable ferrous alloy ever developed. Recent results from our group indicate that coatings using these alloys can be produced from commercial grade precursors and industrially available thermal spraying routes. The development of Fe-based bulk metallic glass (BMG) alloys for degradation control will open the door to next-generation coatings with unprecedented combinations of corrosion and wear resistances. This work summarizes the development of Fe-based glassy coatings for corrosion and wear control performed in our research group in the last 17 years covering: i) glass forming ability of alloys, ii) development of Fe-based glass former alloys, iii) thermal spraying of Fe-based glass former alloys, and iv) scientific and technological impacts of this research.

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“…Sigolo et al [27] investigated microstructure and wear resistance of boron-modified stainless steel coatings'. The coatings were deposited by Plasma Transferred Arc (PTA) method, with powders of supermartensitic and superduplex stainless steel with 1 and 3 wt.% B addition, respectively.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear Mechanisms of S235JR, S355J2, C45, AISI 304, and Hardox 500 Steels Tested Using Garnet, Corundum and Carborundum Abrasives

Szala¹,

Szafran²,

Matijošius³

et al. 2023

Adv. Sci. Technol. Res. J.

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many studies have been related to wear [1][2][3][4], primarily focusing on anti-wear surface treatment or new materials/coatings selection for anti-wear applications [5,6]. The effect of variable factors such as size, shape and type of abrasive, sliding distance, sliding velocity, the magnitude of applied load, ambient temperature, impact angle, abrasive feed rate etc., were studied on wear resistance of materials. Even though it is generally believed that the abrasion resistance of steels depends on their hardness, microstructure (e.g. martensite and retained austenite fraction), morphology, grain size, etc. [7, 8], the change of abrasive material can seriously affect the wear mechanism and overall steel abrasion resistance. Albertin and Sinatora [9] conducted their studies with three different types of abrasive (phosphate rock, hematite, quartz) and with different ferrous material microstructures (martensite, austenite, pearlite) of high chromium white cast irons. The authors showed that the abrasion wear resistance of martensite was higher than austenite and

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

Cited by 49 publications

References 27 publications

Discussion of the Segregation and Low Hardness of Large-Diameter M3 High-Speed Steel Produced by Spray Forming

Discussion of the Segregation and Low Hardness of Large-Diameter M3 High-Speed Steel Produced by Spray Forming

Development of Fe-based glass former alloys for thermal spray coatings with optimized corrosion and wear properties

Abrasive Wear Mechanisms of S235JR, S355J2, C45, AISI 304, and Hardox 500 Steels Tested Using Garnet, Corundum and Carborundum Abrasives

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