Grain Refinement after Various Thermo-Mechanical Treatments in AZ80 and ZK60 Magnesium Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10130992" target="_blank" >RIV/00216208:11320/12:10130992 - 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

Grain Refinement after Various Thermo-Mechanical Treatments in AZ80 and ZK60 Magnesium Alloys

Popis výsledku v původním jazyce

The effect of thermal processing prior to severe plastic deformation by extrusion and swaging on grain refinement in ZK60 and AZ80 alloys was studied. The alloys received in direct-chill cast condition were homogenized at 415 degrees C and annealed (over-aged) at temperatures from 200 to 380 degrees C. Both the direct-hill cast and over-aged conditions were extruded at T = 300 degrees C using an extrusion ratio of ER = 19. Hot extrusion resulted in substantial grain refinement in both cases, the effectbeing stronger in the over-aged material. The extruded bars were severe plastically deformed at 250 degrees C by swaging. Swaging refined further the grain size depending on the deformation ratio (number of passes). At optimal processing conditions the grain size was 450 nm and 570 nm for the AZ80 and ZK60 alloys, respectively.

Název v anglickém jazyce

Grain Refinement after Various Thermo-Mechanical Treatments in AZ80 and ZK60 Magnesium Alloys

Popis výsledku anglicky

The effect of thermal processing prior to severe plastic deformation by extrusion and swaging on grain refinement in ZK60 and AZ80 alloys was studied. The alloys received in direct-chill cast condition were homogenized at 415 degrees C and annealed (over-aged) at temperatures from 200 to 380 degrees C. Both the direct-hill cast and over-aged conditions were extruded at T = 300 degrees C using an extrusion ratio of ER = 19. Hot extrusion resulted in substantial grain refinement in both cases, the effectbeing stronger in the over-aged material. The extruded bars were severe plastically deformed at 250 degrees C by swaging. Swaging refined further the grain size depending on the deformation ratio (number of passes). At optimal processing conditions the grain size was 450 nm and 570 nm for the AZ80 and ZK60 alloys, respectively.

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Polonica A

ISSN

0587-4246

e-ISSN

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Svazek periodika

122

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

3

Strana od-do

622-624

Kód UT WoS článku

000309019200049

EID výsledku v databázi Scopus

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