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구상흑연주철의 파괴거동에 관한 AE 방법에 의한 연구 (1) : Sn 첨가량에 따른
강인찬,오덕수 대한금속재료학회(대한금속학회) 1988 대한금속·재료학회지 Vol.26 No.3
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.