Microstructural and Mechanical Assessment of Camshafts Produced by Ductile Cast Iron Low Alloyed with Vanadium

In the present study, ductile iron camshafts low alloyed with 0.2 and 0.3 wt % vanadium were produced to study microstructural mechanical evaluation of lobes camshaft. For this purpose, in one largest manufacturers camshaft México by phenolic urethane no-bake sand mold casting method. The microstructure was studied three zones located at top, middle, bottom optical microscopy, tests performed on camshafts. A homogeneous distribution spheroidal graphite high nodularity for both castings obtained from regions analyzed. cooling rate lobe surfaces enabled us obtain a nodule count smaller size instead middle region where big nodules are presented. An inverse chill behavior found there is an increase concentration carbide-forming elements, leading highest micro-hardness values region. tensile properties increased when contents increased; however, toughness ductility as-cast alloys decreased as result volume fraction carbide particles.