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https://doi.org/10.1007/s12540-017-7079-9

has been cited by the following article:

• TITLE: Validation of Calculated Thermal Parameters with Experimental Results in SOFCs

  AUTHORS: Saeed Ghali, Azza Ahmed, Taha Mattar

  KEYWORDS: Transformation Temperature, Thermal Expansion Coefficient, SOFCs Steel, Matlab

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.6 No.2, March 20, 2018

  ABSTRACT: Eleven steel grades were designed to be used as metallic interconnects for Solid Oxide Fuel Cells (SOFC). Low carbon, high chromium steel with different additives of niobium, vanadium, aluminum, molybdenum, silicon, manganese and titanium were produced. Phase transformation temperatures; eutectoid temperature (Ac1) and temperature at which transformation of ferrite to austenite is completed during heating (Ac3) were measured by L75-76 dilatometer. The influence of the alloying elements on transformation temperatures was analyzed using MATLab. Considering the interaction between different alloying elements two equations for predicting Ac1 & Ac3 were obtained. The obtained Ac1 & Ac3 by these equations showed more compatibility than that obtained by traditional ones. In addition, the coefficients of thermal expansion of these steel grades were detected. The influences of chemical composition and temperature on the thermal expansion coefficient were analyzed; the obtained equations were verified to certain extent by using several kinds of steels. The predicted values were in good accordance with the experimental results which proof the validation of calculation model.