Date of Award
Open Access Master's Thesis
Master of Science in Materials Science and Engineering (MS)
Administrative Home Department
Department of Materials Science and Engineering
Committee Member 1
Committee Member 2
Transitioning from traditional grades of ductile iron to solution strengthened ferritic ductile iron (SSFDI) grades can be difficult because of the need to reduce the amount of pearlite promoting elements, particularly copper and manganese, which are used in traditional grades. Knowing the acceptable threshold of residual alloying elements will allow for more cost-effective tailoring of the charge stream. Data were generated from a series of casting trials with the target grade of EN-GJS-500-14 where the levels of copper and manganese were varied from 0.05% to 0.3% and 0.15% to 0.4% respectively while maintaining silicon in the 3.8%-4.3% range. The pearlite content and tensile properties were measured and analyzed. Using this data, a relationship connecting the copper, manganese, and silicon content in the iron to the pearlite content was developed and the effect of these high residuals on tensile properties was quantified.
Scruton, Julia, "EFFECTS AND LIMITATIONS OF RESIDUAL ALLOYING ELEMENTS IN SILICON SOLID SOLUTION STRENGTHENED FERRITIC DUCTILE IRON", Open Access Master's Thesis, Michigan Technological University, 2018.