The mierostructure , non-metallic inclusion and fracture morphology of cast steel ZG35CrMo has been studied using optical and scanning electron microscope (SEM), X-ray diffraction and electron micdroprobe analysis technique. The test results showed that with adding moderate RE-Ca in cast steel ZG35CrMo, the Widmannstatten structure in steel was elithenated, the grains of cast steel were refined and the non-metallic inclusions maied from polygon to spheroid, of which theamount decreased and the distrib...
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