Development of Processing Maps for Coiled Tubing Steel

Abstract:

Hot compression test of coiled tubing steel is performed on Gleeble3500 at 1123K—1373K and strain rate from 0.001 to 5s-1. The hot deformation behavior of coiled tubing steel was characterized using processing map developed on the basis of the dynamic materials model. The processing map gives the flow instable region and the flow stable region in which the process of dynamic recovery (DRV) and the dynamic recrystallization (DRX) occur. In the processing map, the variation of the efficiency of the power dissipation is plotted as a function of temperature and the strain rate. According to the processing map, the coiled tubing steel is rolled by The Thermo-Mechanical-Control-Process (TMCP), and finally it is obtained that the yield strength and tensile strength of coiled tubing steel are 565MPa and 685MPa respectively, and the elongation percentage is 32.1%.

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 955-959
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.955
• Online since: December 2011
• Authors: Zhen Dong Zhang, Hai Tao Zhou, Xiang Hua Liu, Si Jun Li, Jie Dong, Xiao Zhou
• Keywords: Coiled Tubing Steel, Dynamic Recrystallization (DRX), Hot Deformation, Processing Map

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