RESIDUAL STRESSES GRADIENT IN SUBSURFACE LASER HARDENED STEEL LAYERS DETERMINED BY X-RAY DIFFRACTION COMPLEMENTED WITH HOLE DRILLING METHOD

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00214299" target="_blank" >RIV/68407700:21340/13:00214299 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

RESIDUAL STRESSES GRADIENT IN SUBSURFACE LASER HARDENED STEEL LAYERS DETERMINED BY X-RAY DIFFRACTION COMPLEMENTED WITH HOLE DRILLING METHOD

Popis výsledku v původním jazyce

Laser hardening is a surface treatment method which is successfully used especially when localized hardening of surface is desired. The correct choice of laser hardening parameters must be verified because the fundamentals of the process rest in structural changes of the material, namely the phase composition and real structure such as appropriate state of residual stress. X-ray diffraction represents the experimental method that has the capability to give these parameters non-destructively in the thinsurface layer. In our study, the focus was to ascertain the effect of laser beam width on the depth distribution of residual stresses. The diffraction approach was thus combined with hole-drilling method. The obtained results from both the methods show that the depth distributions of residual stresses have advantageous hook-like shape with tensile stresses on the surface, gradually decreasing to compressive stresses in the depth of approximately 0.3 mm beneath the surface. This is benefi

Název v anglickém jazyce

RESIDUAL STRESSES GRADIENT IN SUBSURFACE LASER HARDENED STEEL LAYERS DETERMINED BY X-RAY DIFFRACTION COMPLEMENTED WITH HOLE DRILLING METHOD

Popis výsledku anglicky

Laser hardening is a surface treatment method which is successfully used especially when localized hardening of surface is desired. The correct choice of laser hardening parameters must be verified because the fundamentals of the process rest in structural changes of the material, namely the phase composition and real structure such as appropriate state of residual stress. X-ray diffraction represents the experimental method that has the capability to give these parameters non-destructively in the thinsurface layer. In our study, the focus was to ascertain the effect of laser beam width on the depth distribution of residual stresses. The diffraction approach was thus combined with hole-drilling method. The obtained results from both the methods show that the depth distributions of residual stresses have advantageous hook-like shape with tensile stresses on the surface, gradually decreasing to compressive stresses in the depth of approximately 0.3 mm beneath the surface. This is benefi

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI3%2F814" target="_blank" >FR-TI3/814: Optimalizace laserového povrchového zpracování strojních součástí pro zvýšení jejich užitných vlastností</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

INTERNATIONAL SCIENTIFIC KONFERENCE PROCEEDINGS, GABROVO, BULGARIA, 22-23 November 2013

ISBN

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ISSN

1313-230X

e-ISSN

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Počet stran výsledku

5

Strana od-do

182-186

Název nakladatele

UNIVERSITY PUBLISHING HOUSE ?V. APRILOV?

Místo vydání

Gabrovo

Místo konání akce

Gabrovo

Datum konání akce

22. 11. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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