Detail publikačního výsledku

Influence of processing on microstructure and mechanical properties of magnesium alloy AZ91

PANTĚLEJEV, L.; ŠTĚPÁNEK, R.

Originální název

Influence of processing on microstructure and mechanical properties of magnesium alloy AZ91

Anglický název

Influence of processing on microstructure and mechanical properties of magnesium alloy AZ91

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

AZ91, Microstructure, ECAP, Mechanical properties, Fracture behaviour

Klíčová slova v angličtině

AZ91, Microstructure, ECAP, Mechanical properties, Fracture behaviour

Autoři

PANTĚLEJEV, L.; ŠTĚPÁNEK, R.

Rok RIV

2017

Vydáno

12.06.2016

Nakladatel

University of Žilina

Místo

žilina, Slovensko

ISSN

1335-0803

Periodikum

Materiálové inžinierstvo

Svazek

23

Číslo

1

Stát

Slovenská republika

Strany od

27

Strany do

32

Strany počet

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"
}