INVESTIGATION OF THE INFLUENCE OF SELECTIVE LASER MELTING PARAMETRES ON THE STRUCTURE AND MECHANICAL PROPERTIES OF Al-Ce-Fe-Ni-Zr ALLOY

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Resumo

Samples of Al-Ce-Fe-Ni-Zr alloy were obtained by selective laser melting at scanning speeds of 700–1900 mm/s. The structure of the samples is eutectic: a solid solution based on aluminum is located inside intermetallic cells. A coarser eutectic structure with coarser cells is observed at the cell boundary. The microhardness of the samples was HV0,1 = 115–170, the tensile strength was 370–475 MPa, and the ductility was 10–23%. Residual thermal stresses <250 MPa were observed in the samples. An increase in energy density contributed to a decrease in strength characteristics, an increase in elongation, and a decrease in residual stress.

Sobre autores

Yu. Ponkratova

People's Friendship University of Russia named after Patrice Lumumba

Email: ponkratova-yuyu@pfur.ru
Moscow, Russia

K. Bazaleeva

People's Friendship University of Russia named after Patrice Lumumba

Email: email@example.com
Moscow, Russia

A. Atanova

People's Friendship University of Russia named after Patrice Lumumba

Email: email@example.com
Moscow, Russia

I. Binkov

Bauman Moscow State Technical University

Email: email@example.com
Moscow, Russia

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