Mechanical properties of a spray deposited bearing steel

Tinscher, R.; Bomas, H.; Mayr, P.

doi:10.1016/s0921-5093(01)01423-x

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…Although the grain structure is quite different in different regions of the billets, this is not a severe problem on the material homogeneity because normally the spray deposited billets must be densified by hot working process such as hot rolling. The grain structure will be deformed to a large extent and much more homogeneous and refined grain structures could be achieved finally [21].…”

Section: Resultsmentioning

confidence: 99%

Spray forming of homogeneous 100Cr6 bearing steel billets

Cui

Fritsching

Schulz

et al. 2005

Journal of Materials Processing Technology

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Section: Resultsmentioning

confidence: 99%

Spray forming of homogeneous 100Cr6 bearing steel billets

Cui

Fritsching

Schulz

et al. 2005

Journal of Materials Processing Technology

Self Cite

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“…The results showed that spray formed bearing steels exhibited low distortion during quenching owing to the good metallurgical homogeneity. Besides, Tinscher et al revealed that the homogeneous and isotropic microstructure of spray formed bearing steel resulted in an isotropic mechanical properties including high fatigue resistance perpendicular to the rolling direction. Schumacher et al attempted to increase the amount of sulfur element of the bearing steel by spray forming in order to improve the machinability without reducing fatigue strength.…”

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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