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Vol.26, No.3, 251 ~ 260, 1988
Title
A study on the Fracture Toughness of Spheroidal Graphite Cast Iron By AE Method
오덕수Duk Soo Oh, 강인찬In Chan Kang
Abstract
The effects of the Sn content and microstructure on the tensile properties and the fracture behaviors of spheroidal graphite cast iron were investigated. Addition of 0.05% Sn promoted pearlitic structure of the matrix, which resulted in an enhancement of the yield strength and the fracture toughness of the alloy. Acoustic emission (AE) characterstics of the alloy during mechanical testing were also studied. The voltage range and the shape of AE waves during the deformation stage and the fracture stage varied with the Sn content in the alloy.
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