"Studovan\u00E1 ADI byla z\u00EDsk\u00E1na tepeln\u00FDm zpracov\u00E1n\u00EDm nelegovan\u00E9 litiny s kuli\u010Dkov\u00FDm grafitem. Tepeln\u00E9 zpracov\u00E1n\u00ED sest\u00E1valo z austenitizace (900 C / 1h), izotermick\u00E9 transformace pri teplot\u011B 380 C a ochlazen\u00ED do vody. Ke studiu zm\u011Bn struktury v pr\u016Fb\u011Bhu izotermick\u00E9 transformace byly vybr\u00E1ny doby transformace v rozsahu od 2 do 540 minut."@cs . "3"^^ . . "The studied austempered ductile iron (ADI) was obtained by the heat treatment of an unalloyed nodular cast iron consisting of austenitization (900 C / 1h), an isothermal transformation at 380 C and water cooling at the end. To study matrix composition changes during the isothermal transformation, the dwell at the transformation temperature was chosen in very wide range of 2 min to 540 min. The isothermal transformation starts by a creation of bainitic ferrite needles resulting in an enrichment of the non-transformed austenite by carbon which increases its stability. For short dwells (2, 5 and 10 min) the stabilization of the austenite is not sufficient yet, therefore the partial martensitic transformation during cooling occurs. With increasing dwell the amount of the stabilized austenite increases and reaches its maximum for the transformation dwell of 60 min. With further dwell lengthening the amount of the stabilized austenite decreases again as a consequence of its continuing transformation into th"@en . . "The Optimization of the Isothermal Transformation Dwell with Emphasis on the Matrix Structural Mixture of Austempered Ductile Iron" . . "The studied austempered ductile iron (ADI) was obtained by the heat treatment of an unalloyed nodular cast iron consisting of austenitization (900 C / 1h), an isothermal transformation at 380 C and water cooling at the end. To study matrix composition changes during the isothermal transformation, the dwell at the transformation temperature was chosen in very wide range of 2 min to 540 min. The isothermal transformation starts by a creation of bainitic ferrite needles resulting in an enrichment of the non-transformed austenite by carbon which increases its stability. For short dwells (2, 5 and 10 min) the stabilization of the austenite is not sufficient yet, therefore the partial martensitic transformation during cooling occurs. With increasing dwell the amount of the stabilized austenite increases and reaches its maximum for the transformation dwell of 60 min. With further dwell lengthening the amount of the stabilized austenite decreases again as a consequence of its continuing transformation into th" . "3"^^ . "439906" . "113-116" . "Kohout, Jan" . "[97EC3F2836FD]" . . . "Optimalizace izotermick\u00E9 prodlevy s d\u016Frazem na strukturu ADI"@cs . "Materials Science" . "The Optimization of the Isothermal Transformation Dwell with Emphasis on the Matrix Structural Mixture of Austempered Ductile Iron"@en . "P(GA106/03/1265), Z(MO0FVT0000404)" . . "Hanzl\u00EDkov\u00E1, Kl\u00E1ra" . . "Optimalizace izotermick\u00E9 prodlevy s d\u016Frazem na strukturu ADI"@cs . "RIV/00216305:26210/07:PU73579!RIV08-GA0-26210___" . . . "ADI, stabilized austenite, transformation dwell, isothermal transformation stage"@en . . . . "1392-1320" . "13" . . . "The Optimization of the Isothermal Transformation Dwell with Emphasis on the Matrix Structural Mixture of Austempered Ductile Iron" . "V\u011Bchet, Stanislav" . "2/2007" . . . "The Optimization of the Isothermal Transformation Dwell with Emphasis on the Matrix Structural Mixture of Austempered Ductile Iron"@en . . "LT - Litevsk\u00E1 republika" . . "RIV/00216305:26210/07:PU73579" . "26210" . . "4"^^ . .