Properties of Electron Beam Hardened Layers Made By Different Beam Deflection

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU125949" target="_blank" >RIV/00216305:26210/17:PU125949 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Properties of Electron Beam Hardened Layers Made By Different Beam Deflection
Original language description
The usage of the high-energetic source electron beam enables repeated surface quenching of chosen areas of an engineering part surface. Different techniques of electron beam deflections allow the creation of hardened layers of different shapes and above all thicknesses. Experiments were carried out on material 42CrMo4 (1.7225) and one point, seven points, eleven points, line, field and meander were tested deflection. Influence of process speed and defocusing of the electron beam was studied. The electron beam surface quenching resulted in a very fine martensitic microstructure with the hardness over 700 HV0.5. The thickness of the hardened layers depends on the type of deflection and depends directly (except field deflection) on process speed. The maximum observed depth 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 volume.
Czech name
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Czech description
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Project
<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of Abstracts "26th National Conference on Heat Treatment"
ISBN
978-80-907043-0-5
ISSN
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e-ISSN
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Number of pages
350
Pages from-to
251-259
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Jihlava
Event date
Nov 21, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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