Mechanical behaviour of vanadium microalloyed steel under control environment compression. (2020)

• Record Type: Journal Article
• Authors: Singh, Ashutosh Pratap; Pant, Gaurav
• Is Part Of: Materials today. Volume 26:Part 2(2020)
• Page Start: 2525
• Page End: 2527
• Publication Date: 2020
• Subjects: Control environment -- Precipitation -- Microalloying -- Solid solution -- Precipitation density; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.02.537
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Microalloyed vanadium steels are high strength low alloy steel. Although by precise addition of nitrogen in the alloy extract the vanadium from the solid solution and can form vanadium based carbonitrides. In current work prechosen composition of Vanadium-Nitrogen based micro alloy steel was austenitized at 1000 °C. A set of experimental steels are subjected to hot compression using Thermo-Mechanical Simulator (Gleeble 3800®) at 800 °C under the control environment and then cooled to room temperature within the simulator, at a cooling rate of 80 °C/s. Microstructural characterization was done using optical and Scanning microscope. Mechanical testing are done using Instron 1186 testing machine. The characterization study reveals the acicular type of transformation product. That indicates the formation of precipitate of vanadium carbonitrides (V(C, N)). The tensile test result of austenitized sample shows increased ultimate tensile strength due to strain induced precipitate.