Effect of normal loading on microstructural evolution and sliding wear behaviour of novel continuously cooled carbide free bainitic steel

Neog, Suruj Protim; Bakshi, Subhankar Das; Das, Sourav

doi:10.1016/j.triboint.2020.106846

Cited by 28 publications

(11 citation statements)

References 39 publications

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“…The Cr15 matrix suffers serious cutting, impacting, extruding, and rolling from SiO 2 abrasives during the three-body abrasive wear. The high applied load accelerates Cr15 matrix removal caused by increasing kinetic energy of the SiO 2 abrasive [42,43]. Meanwhile, some broken SiO 2 abrasives will embed into the Cr15 matrix under 2 kg applied load.…”

Section: Resultsmentioning

confidence: 99%

Interfacial bonding and abrasive wear behaviours of the iron matrix composites

Liu

Shi

et al. 2022

Materials Science and Technology

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Ceramic particles reinforced iron matrix composites attract considerable interest in the industrial engineering field due to the ceramic's excellent fatigue and wear resistance. ZTA ceramic particle has been regarded as an ideal reinforcement phase. In this study, three-body abrasive wear behaviours and the mechanism of the ZTA/Fe composites and high chromium white cast iron Cr15 standard samples were investigated. The wear resistance of the ZTA/Fe composite was superior to the Cr15 standard sample under SiO2 abrasives. The extruded ZTA could protect the matrix surrounding ZTA ceramic particles. However, ZTA ceramic particles were cut together with the Cr15 matrix under SiC abrasives. The wear mechanism of the composites was a combination of the cutting and fatigue for SiC abrasives.

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Section: Resultsmentioning

confidence: 99%

Interfacial bonding and abrasive wear behaviours of the iron matrix composites

Liu

Shi

et al. 2022

Materials Science and Technology

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“…This category can also be referred to as the joint work of Behadshia and Edmunds. The last category focuses on the behaviors of the CFB phase in different working conditions, such as wear and fatigue [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Vanadium and Rare Earth on the Structure, Phase Transformation Kinetics and Mechanical Properties of Carbide-Free Bainitic Steel Containing Silicon

et al. 2022

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Carbide-free bainitic (CFB) steels with a matrix of bainitic ferrite and thin layers of retained austenite, to reduce the manufacturing costs, usually do not contain alloying elements. However, a few reports were presented regarding the effect of alloying elements on the properties of these steels. Thus, this study evaluates the effects of vanadium and rare earth (Ce-La) microalloying elements on the structure, phase transformation kinetics, and mechanical properties of carbide-free bainite steel containing silicon fabricated by the casting and austempering procedure. Optical and scanning electron microscopy (OM and SEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD) were used to study the microstructure and phase structure. The transformation kinetics were examined by a dilatometry test. Hardness, tensile, and impact tests evaluated the mechanical properties. Due to adding alloying elements, the fracture toughness and change in matrix phases relation was studied by the crack tip opening displacement (CTOD) test and SEM fractography. The microstructure of the silicon added sample was completely carbide-free bainite. The test results showed vanadium helped CFB formation, even in continuous cooling. The primary austenite grain (PAG) size grew by vanadium addition. The EBSD phase map illustrates an increment in the percentage of retained austenite by vanadium. In contrast, the addition of 0.03 wt% rare earth reduced the primary austenite grain size and reduced the retained austenite content. The results of the dilatometry test confirmed that vanadium and rare earth addition both reduced the critical cooling rate of the bainite transformation. Vanadium leads to an earlier cessation of bainite transformation, while rare earth elements postpone this transformation. Mechanical tests showed that the tensile strength of carbide-free bainite steels was strongly influenced by the morphology and volume fraction of austenite. Retained austenite, when transformed to martensite during the transformation-induced plasticity (TRIP) phenomenon, leads to increased tensile strength and fracture toughness, or retained austenite with a film-like shape prevents the growth of cracks by blinding the crack tip. The result of the CTOD test exhibited that retained austenite plays the leading role in increasing crack resistance when TRIP occurs.

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“…The improvement of wear properties in steels when austenite is retained in the microstructure is observed in numerous steels. [5][6][7][8][9] Gong et al [6] showed in rubber wheel tests that both impact toughness and wear resistance of martensitic high-carbon steel are improved by the introduction of retained austenite in the microstructure. In their case, the retained austenite-introduced by a partitioning treatment at 250 °C-transforms completely into martensite during wear.…”

Section: Introductionmentioning

confidence: 99%

“…Similar results are obtained for carbide-free bainitic steels under abrasive tests. [7][8][9] Efremenko et al [10] performed wear tests on steels containing 1.2 wt% carbon, 2.6 wt% manganese, and 1.6 wt% silicon in carbide-free bainitic and fully metastable austenitic states. The carbide-free microstructures showed good wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Aluminum on the Wear Properties of High‐Carbon Metastable Austenitic Steels

Ingber

Duchek

Kunert

2022

steel research int.

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The two‐body abrasive wear properties of metastable austenitic steels (MAS) against SiC abrasive paper are investigated at different wear loads. To ensure a metastable austenitic microstructure, the alloying compositions are chosen such that the martensite start temperature of the MAS is approximately at room temperature, while the proportions of carbon, manganese, and aluminum change. The abrasion test results are compared to martensitic (40MnB5) and austenitic steel (Hadfield steel). An up to four times lower weight loss is found for the MAS compared to the Hadfield steel and up to 6.7 times lower weight loss compared to the martensitic steel. It is found that the wear resistance of the MAS increases significantly with wear load. Wear resistance of over 1300 Nm mm−3 is achieved at the highest wear load of 32 N. The wear properties of the MAS are associated with an increase in the surface hardness resulting from a mechanically induced austenite to martensite phase transformation. It is shown that the addition of aluminum to the MAS reduces the wear resistance. This is explained by an increase in stacking fault energy and the associated restriction of the mechanically induced transformation to martensite.

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Effect of normal loading on microstructural evolution and sliding wear behaviour of novel continuously cooled carbide free bainitic steel

Cited by 28 publications

References 39 publications

Interfacial bonding and abrasive wear behaviours of the iron matrix composites

Interfacial bonding and abrasive wear behaviours of the iron matrix composites

Effect of Vanadium and Rare Earth on the Structure, Phase Transformation Kinetics and Mechanical Properties of Carbide-Free Bainitic Steel Containing Silicon

Influence of Aluminum on the Wear Properties of High‐Carbon Metastable Austenitic Steels

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