Effects of severe shot peening on the surface state of AW 7075 Al alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10318007" target="_blank" >RIV/00216208:11320/15:10318007 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4149/km_2015_4_239" target="_blank" >http://dx.doi.org/10.4149/km_2015_4_239</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4149/km_2015_4_239" target="_blank" >10.4149/km_2015_4_239</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of severe shot peening on the surface state of AW 7075 Al alloy

Popis výsledku v původním jazyce

X-ray diffraction methods were used to study the surface layer properties of AW 7075 aluminium alloy before and after application of two different air blast shot peening treatments (similar Almen intensity and different coverage). Results have revealed important information about the strengthened surface layers. An increase of coverage does not result to any increase of the compressive residual stress field in the surface layer. However it plays the determining role in the process of the grain refinement by shot peening. After application of shot peening with 8.3 N/100 % parameters, the surface crystallite size decreased from an initial value of 80 nm to 60 nm. When 9.6 N/650 % parameters were applied, the crystallite size further decreased to a valueof 51 nm. The relaxation process of the compressive residual stresses during the cyclic loading was observed; almost half of the residual stresses were lost, but the FWHM parameter, representing the crystallite size and dislocation densit

Název v anglickém jazyce

Effects of severe shot peening on the surface state of AW 7075 Al alloy

Popis výsledku anglicky

X-ray diffraction methods were used to study the surface layer properties of AW 7075 aluminium alloy before and after application of two different air blast shot peening treatments (similar Almen intensity and different coverage). Results have revealed important information about the strengthened surface layers. An increase of coverage does not result to any increase of the compressive residual stress field in the surface layer. However it plays the determining role in the process of the grain refinement by shot peening. After application of shot peening with 8.3 N/100 % parameters, the surface crystallite size decreased from an initial value of 80 nm to 60 nm. When 9.6 N/650 % parameters were applied, the crystallite size further decreased to a valueof 51 nm. The relaxation process of the compressive residual stresses during the cyclic loading was observed; almost half of the residual stresses were lost, but the FWHM parameter, representing the crystallite size and dislocation densit

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Kovové materiály

ISSN

0023-432X

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

5

Strana od-do

239-243

Kód UT WoS článku

000358270700007

EID výsledku v databázi Scopus

2-s2.0-84937218850