The effect of phosphorous content and proeutectoid carbide distribution on the fracture behavior of 52100 steel

Shen, Fan; Krauß, G.

doi:10.1007/bf02833224

Cited by 10 publications

(4 citation statements)

References 7 publications

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“…In their wear tests, they found that CADI samples had better wear resistance than samples made of austempered ductile iron. The mechanical properties of materials can be significantly improved by isothermal heat treatment since it produces the bainite microstructure [ 5 , 6 , 7 ]. Lower bainite results in higher ductility than upper bainite due to differences in their microstructures [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance of Medium Carbon Steel with Different Microstructures

et al. 2021

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In this research, the tribological properties of different microstructures of medium carbon steel produced by either an austempered process or quenched-tempered process are investigated. The as-received samples with annealed microstructure (spherodized) are austempered to obtain a bainite microstructure or quenched-tempered to obtain a tempered martensite microstructure. The tribological performance of these microstructures was studied using a ball-on-disk UMT3 tribometer. The results indicated that both bainite microstructures and tempered-martensite microstructures produced better wear resistance than pearlite microstructures. At the same hardness level, the austempered disk specimens have less cracking due to higher fracture toughness compared to quenched and tempered steel. For the disks, tempered martensite microstructures produced more plastic deformation compared with bainite microstructures. Mild abrasive wear was observed on the harder disks, however, smearing wear was observed on the softer disks. Adhered debris particles were observed on the balls.

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Section: Introductionmentioning

confidence: 99%

Wear Resistance of Medium Carbon Steel with Different Microstructures

et al. 2021

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“…Austempering is a high-performance isothermal heat treatment which can impart superior performance to ferrous metals [22]. Many researchers have suggested that the isothermal heat treatment significantly improves the mechanical properties of materials such as the toughness, strength, and wear resistance, since it produces the bainitic microstructure [23,24]. The austempering process offers advantages over quenching and tempering for many engineering applications [25,26].…”

Section: Introductionmentioning

confidence: 99%

Microstructure engineering for superior wear and impact toughness strength of hypereutectoid powder metallurgy steel

2021

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In this study, powder metallurgical steel samples containing 1.5% C by weight were produced by sintering in a vacuum atmosphere at 1200°C. The impact test and dry sliding wear test specimens were prepared in accordance with ISO 5754 and ASTM G-99 standards, respectively. The wear and impact toughness properties of spherical cementite in the bainitic matrix (SCBM) microstructured specimens produced with different heat treatment routes were compared with pearlite plus primary cementite, fully tempered martensitic, fully bainitic and spherical cementite microstructured specimens in ferritic matrix (SCFM). Microstructural characterisations of all specimens were performed by SEM, EBSD and XRD analyses methods. Compared to fully tempered martensitic and fully bainitic microstructured specimens with similar hardness, both the dry sliding wear and the impact toughness properties of the specimens having SCBM microstructures were improved with the increased austempering time after spheroidisation treatment.

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“…Due to high carbon and chromium contents, conventional casting usually leads to carbide segregation and coarse microstructure in the long‐time solidification process. The poor as‐cast microstructure tends to form carbide network and band during subsequent hot working process, which may bring a harmful effect on the mechanical properties, severely reducing the fatigue life of bearing steel . Thus, microstructure improvement is of great significance for bearing steel to obtain good mechanical properties …”

Section: Introductionmentioning

confidence: 99%

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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The effect of phosphorous content and proeutectoid carbide distribution on the fracture behavior of 52100 steel

Cited by 10 publications

References 7 publications

Wear Resistance of Medium Carbon Steel with Different Microstructures

Wear Resistance of Medium Carbon Steel with Different Microstructures

Microstructure engineering for superior wear and impact toughness strength of hypereutectoid powder metallurgy steel

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

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