生長した球状黒鉛鋳鉄黒鉛相の定量解析
スポンサーリンク
概要
- 論文の詳細を見る
A quantitative metallographic analysis was made of the graphite phase at the center of the spheroidal graphite cast iron grown up to 10% in air by using the particle analyzer developed recently with the aim of establishing the growth theory of irreversible graphite migration more firmly, which was proposed by the authors. The graphite particle of 20-30 μm dia. was greatest in number in the distribution curve of ungrown cast iron and the shape of its distribution was similar to the normal distribution though the peak was a little off to the left. The largest size of graphite was 80-90 μm in dia. The number of graphite particles and the fractional area of graphite increased approximately in proportion to the growth. Especially the number below 10 μm dia. increased remarkably and the distribution curve gradually changed to the J-type. The largest graphite nodules also increased and reached 160-170 μm dia. after 10% growth. The number of graphite particles below 2 μm, dia. increased remarkably in proportion to the growth and reached 12.8 times that of ungrown iron after 10% growth. The metallographic analysis of spheroidal graphite cast iron grown up to 10% with the particle analyzer revealed quantitatively the redistribution of graphite particles in the new matrix adjacent to graphite nodules and the grown micro-voids around graphite nodules. This signified that the growth theory of irreversible graphite migration was also verfied in terms of quantiative microscopy.
- Japan Foundry Engineering Societyの論文
Japan Foundry Engineering Society | 論文
- 球状黒鉛鋳鉄の延性破壊に及ぼす応力３軸度及び基地組織の影響
- 紡織機鋳物の鋳造法に就いて (其の一)
- 光ファイバで紫外線を導光した光造型機の開発と石こう鋳造への適用
- 薄肉球状黒鉛鋳鉄の黒鉛粒数に及ぼす元湯硫黄量，冷却速度及び希土類元素添加時期の影響
- Fe-Si合金及びFe-C-Si合金の塩浴窒化に及ぼすSiの影響とFe，Siの窒化物について