Characteristics of ADI Ductile Cast Iron with Single Addition of 1.56% Ni

The results of examinations of microstructure and an analysis of its impact on selected mechanical properties of austempered ductile iron (ADI) were presented in the paper. The ADI was produced from the ductile iron containing 1.56% Ni only alloying addition. The effect of the austempering time and temperature on the microstructure and mechanical properties of the examined cast iron was considered. Constant conditions of austenitizing were assumed and six variants of the austempering treatment were adopted. The studyof mechanical properties included a static tensile test, Charpy impact strength test and Brinellhardness measurement

Characteristics of ADI Ductile Cast Iron with Single Addition of 1.56% Ni

The results of examinations of microstructure and an analysis of its impact on selected mechanical properties of austempered ductile iron (ADI) were presented in the paper. The ADI was produced from the ductile iron containing 1.56% Ni only alloying addition. The effect of the austempering time and temperature on the microstructure and mechanical properties of the examined cast iron was considered. Constant conditions of austenitizing were assumed and six variants of the austempering treatment were adopted. The studyof mechanical properties included a static tensile test, Charpy impact strength test and Brinellhardness measurement. This work complements the knowledge about alloying additions effect on microstructure and mechanical properties of ADI and focuses on the impact of a single alloying element (Ni)

Wpływ parametrów obróbki cieplnej na kształtowanie mikrostruktury żeliwa ADI z dodatkami Ni, Cu, Mo

Metallographic examinations and mechanical tests were carried out on the ductile iron with additions of Ni, Cu and Mo in as-cast state and after austempering. TTT and CCT diagrams were plotted. The heat treatment was performed in six different variants. Studies included qualitative assessment of the microstructure and testing of mechanical properties such as R0,2, Rm, A, Z, HRC, KC. An analysis of the obtained results was also presented.Przeprowadzono badania metaloznawcze żeliwa sferoidalnego z dodatkami Ni, Cu i Mo w stanie lanym i po hartowaniu izotermicznym. Opracowano wykresy CTPi i CTPc. Obróbkę cieplną wykonano w sześciu różnych wariantach. Badania metaloznawcze obejmowały ocenę jakościową mikrostruktury i pomiary właściwości mechanicznych: R0,2, Rm, A, Z, HRC, KC. Dokonano analizy uzyskanych wynikó

Effect Of Heat Treatment Parameters On The Formation Of ADI Microstructure With Additions Of Ni, Cu, Mo

Metallographic examinations and mechanical tests were carried out on the ductile iron with additions of Ni, Cu and Mo in as-cast state and after austempering. TTT and CCT diagrams were plotted. The heat treatment was performed in six different variants. Studies included qualitative assessment of the microstructure and testing of mechanical properties such as R0,2, Rm, A, Z, HRC, KC. An analysis of the obtained results was also presented