Russian Metallurgy | 2019
Structure and High-Temperature Mechanical Properties of High-Carbon Niobium-Based Alloys
Abstract
Abstract—The structure and the mechanical properties of Nb80C20 and Nb40Mo40C20 alloys have been studied at temperatures 20–1500°C. The mechanical properties of the Nb80C20 alloy from room temperature to 1300°C are shown to be slightly lower than those of complex Nb–Si alloys. The short-time and 100-h strengths of the Nb40Mo40C20 alloy at 1500°C are higher than those of Nb–Si alloys. The Nb40Mo40C20 alloys have a low fracture toughness.