Influence of Ultrafine Particles on Structure, Mechanical Properties, and Strengthening of Ductile Cast Iron

Metals

Irina Kurzina¹  Dmitry Lychagin²  Natalya Popova³  Andrey Chumaevsky⁴  Anna Zykova⁵ 

[1] Chemical faculty and Laboratory of high-energy and special materials, National Research Tomsk State University, 634050 Tomsk, Russia;Department of Mineralogy and Geochemistry, National Research Tomsk State University, 634050 Tomsk, Russia;Laboratory of Physics, Tomsk State University of Architecture and Building, 634003 Tomsk, Russia;Laboratory of Quality Control of Materials and Constructions, Institute of Strength Physics and Materials Science of Siberian Branch of Russian Academy Society, 634055 Tomsk, Russia;School of Core Engineering Education, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia;

关键词: ductile cast iron;    modification;    ultrafine powders;    microstructure;    tensile strength;    wear resistance;    yield strength;    strengthening;   

DOI  :  10.3390/met8070559

来源: DOAJ

【 摘 要 】

Integrated assessment of the influence of an ultrafine mixture TiO2 + ZrO2 + Na3AlF6 on the formation of the structure, mechanical properties, and strengthening of ductile cast iron was made in the paper. The structural-phase composition of ductile cast iron was studied by means of scanning electron microscopy and a transmission electron microscope. Plastic deformation was determined during testing of uniaxial compression. The change in the structural state of the alloy and in its mechanical properties was observed. Quantitative assessment of contributions of separate physical mechanisms to strengthening characteristics of unmodified and modified ductile cast iron was made.

【 授权许可】

Unknown