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Purpose: The effect of heating rate to the tempering temperature on the microstructure and properties of lath martensite tempered at a various temperatures was studied in literature from point of the cemntite precipitations view. It has been shown that cementite dispersion is finer and more uniform in the rapidly heated and tempered than in the slowly heated and tempered specimen. Aim of this work...
Purpose: The AgSnBi powder used for electrical contacts has been consolidated in the process of reciprocating extrusion (cyclic extrusion compression - CEC) in 2, 4, 8 and 16 CEC cycles at room temperature. It corresponds to the deformations: 2 CEC cycles - ϕ = 0.84, 4 CEC cycles - ϕ = 1.68, 8 CEC cycles - ϕ = 3.36 and 16 CEC cycles - ϕ = 6.72. The microstructure of consolidated powder has been characterized...
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