Publication detail
Mechanical properties of ADI in Dependence on Heat tratment Conditions
HANZLÍKOVÁ, K. VĚCHET, S. KOHOUT, J.
Czech title
Mechanické vlastnosti ADI v závislosti na podmínkách tepelného zpracování
English title
Mechanical properties of ADI in Dependence on Heat tratment Conditions
Type
conference paper
Language
en
Original abstract
The purpose of submitted work is completion pieces of knowledge about influence of structure and heat treatment contidions on static mechanical properties of austempered ductile cast iron. Owing to its excellent mechanical as well as technological properties, austempered ductile iron (ADI) belongs among very prospective structural materials. Recently it is applied in automobile and oil industry, and a considerable part of ADI production is applied also in military industry . ADI can replace steel in forged pieces, workpieces or weldments and nodular cast iron with lower level of strength properties in castings, as a rule with high economic or quality effects. The structure of ADI matrix is usually created by bainite with high strength and by stabilized austenite with high deformability. Their portion and partially also their properties are determined by transformation conditions, i.e. the temperature and the time of isothermal transformation while the austenitization conditions play only a marginal role.
Czech abstract
Izotermicky zušlechtěná tvárná litina, v současné době nazývaná ADI (austempered ductile iron), patří mezi perspektivní konstrukční materiály, zejména pro dynamicky namáhané strojní součásti. Její vlastnosti je možno ve velmi širokém rozsahu ovlivňovat podmínkami režimu tepelného zpracování. Zatímco podmínky austenitizace nehrají významnější roli, podmínky izotermické transformace, t.j. transformační teplota a doba výdrže na této teplotě, ovlivňují výslednou strukturu matrice ADI a tím i její mechanické vlastnosti zásadním způsobem. Předložená práce je věnována studiu vlivu doby izotermické transformace v rozsahu 2 min až 9 h na strukturu, statické i únavové vlastnosti nelegované ADI získané při teplotě transformace 380 °C.
English abstract
The purpose of submitted work is completion pieces of knowledge about influence of structure and heat treatment contidions on static mechanical properties of austempered ductile cast iron. Owing to its excellent mechanical as well as technological properties, austempered ductile iron (ADI) belongs among very prospective structural materials. Recently it is applied in automobile and oil industry, and a considerable part of ADI production is applied also in military industry . ADI can replace steel in forged pieces, workpieces or weldments and nodular cast iron with lower level of strength properties in castings, as a rule with high economic or quality effects. The structure of ADI matrix is usually created by bainite with high strength and by stabilized austenite with high deformability. Their portion and partially also their properties are determined by transformation conditions, i.e. the temperature and the time of isothermal transformation while the austenitization conditions play only a marginal role.
Keywords in Czech
Podmínky izotermického zušlechtění, mechanické vlastnosti, ADI
Keywords in English
Isotheram heat treatment conditions, mechanical properties, ADI
RIV year
2005
Released
20.09.2005
Publisher
Brno University of Technology
Location
Brno
ISBN
80-214-2984-4
Book
Juniormat 2005
Edition number
1
Pages count
4
BIBTEX
@inproceedings{BUT20498,
author="Klára {Hanzlíková} and Stanislav {Věchet} and Jan {Kohout},
title="Mechanical properties of ADI in Dependence on Heat tratment Conditions",
booktitle="Juniormat 2005",
year="2005",
month="September",
publisher="Brno University of Technology",
address="Brno",
isbn="80-214-2984-4"
}