1613 粉末射出成形法によるステンレス鋼焼結体の疲労強度に及ぼす粉末特性の影響

概要

論文の詳細を見る
The fatigue properties of 304L stainless steel specimens made by metal injection molding with gas atomized powder and water atomized powder were investigated. The experiment was carried out under the tension-tension cyclic loading. The fatigue strength of gas atomized compact was higher than that of water atomized one. And, the residual strength test for water atomized compact specimen was also carried out. Then, the residual strength was increasing at the initial stage on the fatigue testing. However, it is clear that the residual strength was decreasing with increasing the number of cycles. Fatigue fracture regions and static fracture regions were clearly observed for the gas atomized compact, on the other hand, the fatigue fracture region could not be obviously appeared on the case of the water atomized compact.
2000-07-31