炭素鋼の高温疲れにおける速度効果に及ぼすふん囲気の影響

DOI DOI Web Site Web Site Web Site

書誌事項

タイトル別名
  • The Effect of Atmosphere on the Frequency Effect in High Temperature Fatigue of a Carbon Steel
  • タンソ コウ ノ コウオン ツカレ ニ オケル ソクド コウカ ニ オヨボス フンイキ ノ エイキョウ

この論文をさがす

抄録

The atmospheric effect on the frequency effect was studied in high temperature fatigue of a carbon steel by using dried town gas as an inert environment. At 550°C, the fatigue strength was higher in gas than in air for long life test under low stress levels owing to the reduction of corrosion fatigue effects by high temperature oxidation. At 400°C, the effect of gas was hardly found on fatigue strengths. Considerations were made on the frequency effect in stress τ-rupture time t curves and in plastic strain amplitude γp-cycles to rupture N curves. The relation of γpN0.44=K was carried under various cyclic frequencies and various temperatures, covering over wide range of N. The value of K was larger for lower frequency than for higher frequency, the effect of frecquency increasing at higher temperature. The deviation was found after long time in the air, due to corrosion fatigue by high temperature oxidation.

収録刊行物

詳細情報 詳細情報について

問題の指摘

ページトップへ