Design of wear resistant boron-modified supermartensitic stainless steel by spray forming process

Zepon, Guilherme; Nascimento, Alexandre Romão Costa; Kasama, A.H.; Nogueira, R.P.; Kiminami, Cláudio Shyinti; Filho, Walter José Botta

doi:10.1016/j.matdes.2015.06.020

Cited by 38 publications

(19 citation statements)

References 23 publications

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“…11. Similar results in spray-formed supermartensitic steels with varying boron addition were reported by Zepon et al [17]. Since the materials without boron modifications (supermartensitic and superduplex) do not contain hard reinforcing particles, their abrasive wear resistance was significantly lower.…”

Section: Resultssupporting

confidence: 86%

“…In abrasive wear tests the matrix and its carbon content play a significant role, decreasing worn volumes with increasing carbon content [24]. Comparing literature results of dry sand/rubber wheel [16,17], the worn volumes of specimens obtained by spray forming with the same composition are nearly in the range of PTA. Spray forming led to slightly higher abrasive resistance due to the more homogeneous distribution of boride particles and the finer equiaxed grains achieved [17,25].…”

Section: Resultsmentioning

confidence: 81%

“…Since the borides might contain Fe, Cr and Mo [12,[17][18][19], their extensive formation could lead to a general depletion of these elements in the matrix, which would in turn impart on the corrosion resistance. Since the overall Cr content of the supermartensitic grades (11-13 wt.%) was considerably lower than those present in superduplex grades (20-25 wt.%), a smaller amount of boron addition was chosen for the former.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, the modification of a commercial supermartensitic stainless steel with small boron addition prepared by spray forming was studied by Zepon et al [16,17]. The authors reported a significant increase in wear resistance due to the formation of M 2 B-type borides.…”

Section: Introductionmentioning

confidence: 99%

“…Worn volumes measured on (a) dry sand/rubber wheel with spray forming data from Zepon et al[16,17] and (b) pin-on-plate test. (c) Friction coefficient as a function of sliding distance for the pin-on-plate test measured with 70.6 N.…”

mentioning

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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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

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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Effect of varying chromium and titanium content on corrosion, mechanical and solid particle erosion properties of iron alloy based coating

Sharma

Das

Kumar³

2022

Materialwissenschaft Werkst

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In the present study, three different series of iron alloy based coating materials with varying chromium and titanium content (FeMoCSiBCr10, Fe-MoCSiBCr10Ti10, FeMoCSiBTi10) were deposited on 316L stainless steel using High velocity oxy-fuel spraying method. The effect of alloying element chromium and titanium on corrosion, mechanical and erosion properties of iron alloy based coating material was evaluated. Corrosion test was performed in the medium of sodium chloride (3.5 wt.%). Mechanical tests were performed in terms of microhardness and fracture toughness. The solid particle erosion test of iron based coating materials was performed according to steady state condition by varying impact speed and impingement angle. The finding of results indicated that in case of 10 wt.% titanium, the micro-hardness and fracture toughness was increased by 25.6 % and 16 % respectively, whereas in case of 10 wt.% chromium, the microhardness and fracture toughness was increased by 20.6 % and 9.8 % respectively. It can be concluded for the selection of an alloying element in an iron alloy based coating material, titanium should be given preference over chromium to get better mechanical and solid particle erosion properties whereas chromium should be given preference over titanium to get better corrosion properties.

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Comparative Study on the Microstructure Characteristics and Enhanced Mechanical Properties of Spray Formed GCr15 Bearing Steel

Liu

Cui

Shang

et al. 2018

steel research int.

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Bearing steel GCr15 is prepared by spray forming, and then goes through hot forging and heat treatment. Compared with conventionally cast material, microstructure characteristics and transformation mechanism of spray formed GCr15 bearing steel during each process are analyzed, and the final mechanical properties including strength, elongation, impact toughness, and wear resistance are tested. The results show that the microstructure of assprayed GCr15 bearing steel is homogeneous with very fine pearlite which is formed under large undercooling. After hot forging, the microstructure still exhibits high homogeneity without any coarse carbides. Fine martensite and uniform carbide distribution are observed in the microstructure after heat treatment; moreover, the volume fraction of the retained austenite is higher than that of the conventional GCr15 steel due to the increased carbon concentration in prior austenite matrix. With the optimized microstructure, the overall mechanical performances of spray formed GCr15 bearing steel have been significantly improved, which indicates a great potential of spray forming in developing high-quality bearing steels.

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Design of wear resistant boron-modified supermartensitic stainless steel by spray forming process

Cited by 38 publications

References 23 publications

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

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

Effect of varying chromium and titanium content on corrosion, mechanical and solid particle erosion properties of iron alloy based coating

Comparative Study on the Microstructure Characteristics and Enhanced Mechanical Properties of Spray Formed GCr15 Bearing Steel

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