title: A radiographic evaluation of microporosity in a nickel base casting allow.
abstract: Three series of tensile test pieces were produced using a nickel base partial denture casting alloy. For the first series induction heating was employed, for the second a resistance crucible, and for the third an oxy-acetylene torch. All specimens were radiographed and a classification developed to indicate the radiographic soundness of each specimen. Radiographic soundness was subsequently related to the results obtained from mechanical testing.
mesh_terms: D003722:Dental Alloys; D003735:Dental Casting Technique; D003799:Dental Stress Analysis; D003829:Denture, Partial; D011859:Radiography
chemical_list: D003722:Dental Alloys