Modification of metals and alloys by electron beam treatment (review)

Pobol, І. L.

doi:10.1007/bf00700325

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…[5][6][7][8][9][10][11] Since gation of the microstructural modification and the phase an electron beam has an energy range from 50 to 200 keV, transformation both before and after irradiation. Correlations it usually requires a vacuum chamber, which is one of the between process parameters, microstructures, and surface many limitations of an electron beam as compared to the properties were also investigated.…”

Section: Since Gray Cast Iron Contains a High Percentage Ofmentioning

confidence: 99%

Surface hardening of a gray cast iron used for a diesel engine cylinder block using high-energy electron beam irradiation

Choo

Lee

Kwon

1999

Metall Mater Trans A

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This study investigates the effects of high-energy electron-beam (1.4 MeV) irradiation on surface hardening and microstructural modification in a gray cast iron currently used for a diesel engine cylinder block. The gray cast-iron samples were irradiated in air using an electron accelerator. Afterward, their microstructure, hardness, and wear properties were examined. The original microstructure, which contained graphite flakes in a pearlitic matrix, was changed to martensite, ledeburite, and retained austenite, along with complete or partial dissolution of the graphite. This microstructural modification occurred only when the surface was irradiated with an input-energy density over 1.1 kJ/cm 2 , and it greatly improved the surface hardness and wear resistance. In order to investigate the complex microstructures, thermal analysis and simulation testing were also carried out. The results indicated that the irradiated surface was heated to the austenite-temperature region and then quenched to room temperature, which was enough to obtain surface hardening through martensitic transformation. The thermal analysis results matched well with the microstructures of the thermally simulated samples.

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Section: Since Gray Cast Iron Contains a High Percentage Ofmentioning

confidence: 99%

Surface hardening of a gray cast iron used for a diesel engine cylinder block using high-energy electron beam irradiation

Choo

Lee

Kwon

1999

Metall Mater Trans A

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“…Analyzing the data in [1][2][3][4], we see that a number of technologies of surface strengthening of steels and alloys based on electron-beam treatment have been developed in recent years. One of them consists in facing (alloying) the steel in a beam of relativistic electrons [5 -7].…”

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confidence: 99%

Special features of structure formation in and properties of the surface layer of steel irradiated by a beam of relativistic electrons

et al. 1997

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Thermophysical model of electron beam boriding of carbon steel St3

Dasheev

Smirnyagina

Lapina

et al. 2019

J. Phys.: Conf. Ser.

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The work aims at developing a thermophysical model of electron-beam boriding of carbon steels. The main attention focuses on the physicochemical processes of the formation of iron borides occurring in the treatment zone by the electron beam. A thermodynamic study of phase equilibria in the systems Fe-B-C-O has been performed. On the basis of numerical calculations of temperature fields it is shown that temperature and time conditions of heating and cooling of steel determine the nature of structural transformations. Strength characteristics of iron boride layers have been determined. Then these layers obtained by different methods and using various source components have been thoroughly compared with each other during the analysis.

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Modification of metals and alloys by electron beam treatment (review)

Cited by 5 publications

References 8 publications

Surface hardening of a gray cast iron used for a diesel engine cylinder block using high-energy electron beam irradiation

Surface hardening of a gray cast iron used for a diesel engine cylinder block using high-energy electron beam irradiation

Special features of structure formation in and properties of the surface layer of steel irradiated by a beam of relativistic electrons

Thermophysical model of electron beam boriding of carbon steel St3

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