Detail publikačního výsledku

Influence of microstructure composition on mechanical properties of austempered ductile iron

HANZLÍKOVÁ, K.; VĚCHET, S.; KOHOUT, J.

Originální název

Influence of microstructure composition on mechanical properties of austempered ductile iron

Anglický název

Influence of microstructure composition on mechanical properties of austempered ductile iron

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Two austempered ductile iron (ADI) heats transformed at a temperature of 380oC in periods ranging from 2 minutes to 9 hours have been strudied in detail, with emphasis on the relation between the microstructure matrix composition and mechanical propeties. The matrix microstructure and mechanical properties of ADI are influenced especially by the dwell time (sometimes also referred to as holding time) at isothermal transformation temperature. ADI matrix called ausferrite consists primarily of acicular ferrite and stabilizued austenite. However, for short dwells some amount of martensite can occur in the matrix, which degrades the mechanical properties of ADI. The ADI with optimal combination of mechanical properties was obtained for a transformation dwell of 60 minutes, when the maximum amount of stabilized austenite in the matrix microstructure was obtained.

Anglický abstrakt

Two austempered ductile iron (ADI) heats transformed at a temperature of 380oC in periods ranging from 2 minutes to 9 hours have been strudied in detail, with emphasis on the relation between the microstructure matrix composition and mechanical propeties. The matrix microstructure and mechanical properties of ADI are influenced especially by the dwell time (sometimes also referred to as holding time) at isothermal transformation temperature. ADI matrix called ausferrite consists primarily of acicular ferrite and stabilizued austenite. However, for short dwells some amount of martensite can occur in the matrix, which degrades the mechanical properties of ADI. The ADI with optimal combination of mechanical properties was obtained for a transformation dwell of 60 minutes, when the maximum amount of stabilized austenite in the matrix microstructure was obtained.

Klíčová slova

iron; phase transformation; tensile test; fatigue test; transmission electron microscopy

Klíčová slova v angličtině

iron; phase transformation; tensile test; fatigue test; transmission electron microscopy

Autoři

HANZLÍKOVÁ, K.; VĚCHET, S.; KOHOUT, J.

Rok RIV

2010

Vydáno

15.03.2008

Nakladatel

Institute of Materials and Machine Mechanics, Slovak Academy of Sciences 2008

Místo

Bratislava

ISSN

0023-432X

Periodikum

KOVOVE MATERIALY-METALLIC MATERIALS

Svazek

46

Číslo

2

Stát

Slovenská republika

Strany od

117

Strany do

121

Strany počet

5

BibTex

@article{BUT48602,
  author="Klára {Hanzlíková} and Stanislav {Věchet} and Jan {Kohout}",
  title="Influence of microstructure composition on mechanical properties of austempered ductile iron",
  journal="KOVOVE MATERIALY-METALLIC MATERIALS",
  year="2008",
  volume="46",
  number="2",
  pages="117--121",
  issn="0023-432X"
}