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PANTĚLEJEV, L. ŠTĚPÁNEK, R.
Original Title
Influence of processing on microstructure and mechanical properties of magnesium alloy AZ91
Type
journal article - other
Language
English
Original Abstract
This paper deals with differences of mechanical characteristics and fracture surface morphology of AZ91 magnesium alloy in extruded state and after subsequent equal channel angular pressing (ECAP). According to the results, the tensile properties were not controlled by grain size only as values of the tensile strength and 0.2 proof stress were similar for both alloys despite having average grain size 15.9 μm for the extruded alloy and 1.2 μm for the ECAPed alloy. In contrast, microhardness seemed to be dependent solely on the grain size. Fractographic analysis has shown changes in the damage mode from quasi-cleavage fracture in extruded state to rather ductile fracture with dimple morphology in exECAPed state during tensile loading.
Keywords
AZ91, Microstructure, ECAP, Mechanical properties, Fracture behaviour
Authors
PANTĚLEJEV, L.; ŠTĚPÁNEK, R.
Released
12. 6. 2016
Publisher
University of Žilina
Location
žilina, Slovensko
ISBN
1335-0803
Periodical
Materiálové inžinierstvo
Year of study
23
Number
1
State
Slovak Republic
Pages from
27
Pages to
32
Pages count
6
BibTex
@article{BUT126157, author="Libor {Pantělejev} and Roman {Štěpánek}", title="Influence of processing on microstructure and mechanical properties of magnesium alloy AZ91", journal="Materiálové inžinierstvo", year="2016", volume="23", number="1", pages="27--32", issn="1335-0803" }