Abstract
The study results of the lithium-modified lead babbitt BLi (PbSb15Sn10Li) oxidation kinetics of in the temperature range 373–473 K are considered. The resulting oxidation products of the alloys are identified, and the microstructure of the alloys is studied. The experiments were carried out by the thermogravimetric method in air at atmospheric pressure in the temperature range 373–473 K. It was established that the oxidation process in the entire studied range temperatures can be described with high accuracy by a polynomial of the fourth degree. The experiments noted a periodic change in the oxidation rate over time. The kinetic and energy parameters of the alloy oxidation process have been determined. It has been established that in the temperature range of 373–473 K, lithium additives increase the oxidation of lead babbitt BLi (PbSb15Sn10Li). It has also been shown that the addition of an alloying component significantly grinds its microstructure. Using X-ray phase analysis, it was revealed that the oxidation products of alloys consist of oxides, including PbO, Li2SnO3, Pb2Sb2O7, Sb2O3, Pb3O4, Sb2O4.
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