Influence of Manufacturing Technology on the Structure of 80W-20Re Heavy Sinters

Tomasz Majewski; Tomasz Durejko; Wiesław Urbaniak; Aneta D Petelska; Magdalena Łazińska; Dariusz Zasada; Ryszard Woźniak

doi:10.3390/ma12233965

Influence of Manufacturing Technology on the Structure of 80W-20Re Heavy Sinters

Materials (Basel). 2019 Nov 29;12(23):3965. doi: 10.3390/ma12233965.

Authors

Tomasz Majewski¹, Tomasz Durejko², Wiesław Urbaniak³, Aneta D Petelska⁴, Magdalena Łazińska², Dariusz Zasada², Ryszard Woźniak¹

Affiliations

¹ Faculty of Mechatronics and Aviation of MUT, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland.
² Faculty of New Technologies and Chemistry of MUT, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland.
³ Faculty of Mechatronics, Kazimierz Wielki University, Chodkiewicza 30, 85-867 Bydgoszcz, Poland.
⁴ Faculty of Chemistry, University of Bialystok, Ciolkowskiego 1K, 15-245 Bialystok, Poland.

Abstract

Preliminary measurement results of 80W-20Re heavy sinters are presented in this paper. Tested samples were taken from three different technology processes, i.e., resistance sintering (RS), pulse plasma sintering (PPS), and conventional sintering in a vacuum furnace. In the first two cases, the obtained sinters were of similar usable properties (porosity and microhardness), while for vacuum sintering, the material with high porosity was obtained. At the same time, it was found that sintering with the use of electric current (RS, PPS) generates microstructures with highly elongated grains.

Keywords: W–Re heavy sinters; pulse plasma sintering (PPS); resistance sintering (RS).