球状黒鉛鋳鉄材の衝撃特性のX線フラクトグラフィ的研究(<小特集>X線材料強度小特集)

概要

論文の詳細を見る
Austempered Ductile Iron (ADI) is being used in highly stressed components, particularly in the automotive industry. It therefore becomes essential to understand the factors influencing the ductile and fatigue properties of this material. In the present paper, to obtain basic data of ADI, dynamic fracture test and static fracture toughness test were conducted. And then X-ray fractographic technique was applied on the fracture surface made by these fracture toughness tests. The plastic zone size was determined from the distribution of the half value and residual stress near the fracture surface. These data obtained in the laboratory tests were used to estimate the dynamic fracture toughness parameter K_<ID> at actual fracture of machine parts.
社団法人日本材料学会の論文
1991-07-15