Detail publikace

Properties of electron beam hardened layers made by different beam deflection

MATLÁK, J. DLOUHÝ, I.

Originální název

Properties of electron beam hardened layers made by different beam deflection

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

The usage of the high-energy electron beam source enables repeated surface quenching of chosen areas of an engineering part surface. Different techniques of electron beam deflection allow creating of hardened layers of different shapes and thicknesses. Experiments were carried out with 42CrMo4 (1.7225) steel. The deflection modes tested were one-point, 6-point, 11-point, line, field and meander. The influence of process speed and defo-cusing of the electron beam was also taken into account. The electron beam surface quenching resulted in a very fine martensitic microstructure with a hardness of over 700 HV0.5. The thickness of the hardened layers depends on the deflection mode and is affected directly (except field deflection) by process speed. The maximum hardened depth (NCHD) was 1.49 mm. Electron beam defocusing affects the width of the hardened track and can cause extension of the trace up to 40%. The hardness values continuously decrease from the surface to the material core.

Klíčová slova

Electron beam, surface hardening, 42CrMo4 steel, beam deflection

Autoři

MATLÁK, J.; DLOUHÝ, I.

Vydáno

2. 4. 2018

ISSN

1213-2489

Periodikum

Manufacturing TECHNOLOGY

Ročník

18

Číslo

2

Stát

Česká republika

Strany od

279

Strany do

284

Strany počet

6

URL

https://arl.ujep.cz/arl-ujep/cs/detail-ujep_us_cat-0259971-Properties-of-electron-beam-hardened-layers-made-by-different-beam-deflection/

BibTex

@article{BUT146843,
  author="Jiří {Matlák} and Ivo {Dlouhý}",
  title="Properties of electron beam hardened layers made by different beam deflection",
  journal="Manufacturing TECHNOLOGY",
  year="2018",
  volume="18",
  number="2",
  pages="279--284",
  doi="10.21062/ujep/91.2018/a/1213-2489/MT/18/2/279",
  issn="1213-2489",
  url="https://arl.ujep.cz/arl-ujep/cs/detail-ujep_us_cat-0259971-Properties-of-electron-beam-hardened-layers-made-by-different-beam-deflection/"
}