Publication detail

Influence of heat treatment on mechanical properties and microstructure of AZ61 magnesium alloy

HORYNOVÁ, M. DOLEŽAL, P. GEJDOŠ, P. ZAPLETAL, J. JANOVÁ, D.

English title

Influence of heat treatment on mechanical properties and microstructure of AZ61 magnesium alloy

Type

Peer-reviewed article not indexed in WoS or Scopus

Language

en

Original abstract

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.

Keywords in English

AZ61, heat treatment, mechanical properties

Released

2010-12-15

ISSN

1210-0471

Journal

Transaction of the VŠB-Technical university of Ostrava, Mechanical series

Volume

LVI

Number

2

Pages from–to

73–82

Pages count

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"
}