Design of Microalloyed Steel for Wind Turbine Towers and Influence of Chemical Composition on Microstructure and Mechanical Properties

Abstract:

The contribution of this paper is to provide the effect of chemical composition on both cost and mechanical properties for steel used to wind turbine tower. Each chemical element has been chosen to contribute to the desired final properties. After establishing the chemical composition has been set up metallurgical route. To determine the influence of chemical composition and thermomechanical treatments a series of experimental tests were conducted to evaluate the structure and mechanical properties. A detail analysis involving macroscopic feature and microstructure analysis of the microalloyed steel was also performed by optical microscopy (OM).The mechanical properties were evaluated by tensile test and Charpy V-Notch test. The experimental tests and analysis results show that there are significant improved in the material properties of thick steel plates when comparing it with the Standard, EN10025/3-2004.

• Periodical: Advanced Materials Research (Volume 1143)
• Pages: 32-37
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1143.32
• Online since: February 2017
• Authors: Liviu Gurau, Carmela Gurau*, Gheorghe Gurau
• Keywords: Microalloyed Steel, Microstructure, PWHT, Steel Wind Turbine

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