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HORYNOVÁ, M. DOLEŽAL, P. GEJDOŠ, P. ZAPLETAL, J. JANOVÁ, D.
Originální název
Influence of heat treatment on mechanical properties and microstructure of AZ61 magnesium alloy
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
The contribution is focussed on the assessment of the influence of heat treatment of magnesium alloy AZ61 on its mechanical properties and chemical and microstructural heterogeneity. The experimental material was manufactured by the squeeze casting method. The microstructure of the alloy in as cast state was composed of solid solution, intermetallic phase Mg17Al12, and minor Mn-based phases. The heat treatment applied to the alloy was solution annealing at a temperature of 380 C and with graded dwell time from 1 to 16 hours. Chemical etching was employed in order to estimate the micro-segregation of the elements in the matrix qualitatively and to discern the phases in the microstructure. Differences in etching between the central part and the periphery of crystalline units are apparent in the metallographic images documented by light microscopy. The quantitative assessment of chemical heterogeneity was done via mapping and local chemical microanalyses. The intensity of chemical micro-heterogeneity of each specimen was further expressed using effective distribution coefficients.
Klíčová slova
AZ61, heat treatment, mechanical properties
Autoři
HORYNOVÁ, M.; DOLEŽAL, P.; GEJDOŠ, P.; ZAPLETAL, J.; JANOVÁ, D.
Rok RIV
2010
Vydáno
15. 12. 2010
ISSN
1210-0471
Periodikum
Transaction of the VŠB-Technical university of Ostrava, Mechanical series
Ročník
LVI
Číslo
2
Stát
Česká republika
Strany od
73
Strany do
82
Strany počet
10
BibTex
@article{BUT50716, author="Miroslava {Horynová} and Pavel {Doležal} and Pavel {Gejdoš} and Josef {Zapletal} and Drahomíra {Janová}", title="Influence of heat treatment on mechanical properties and microstructure of AZ61 magnesium alloy", journal="Transaction of the VŠB-Technical university of Ostrava, Mechanical series", year="2010", volume="LVI", number="2", pages="73--82", issn="1210-0471" }