235 伸線強加工高強度鋼の疲労強度特性に及ぼす非拡散性水素と低温焼鈍しの影響(OS8-2 水素環境が金属強度特性に及ぼす影響,OS8 水素環境が金属強度特性に及ぼす影響)
詳細
Fatigue tests have been conducted to investigate the influence of irreversible hydrogen and low temperature annealing on the fatigue strength for a cold drawn eutectoid steel specimen. For both as-received and annealed samples, crack initiated at internal inclusion. In the case of as-received samples, irreversible hydrogen had no influence on the fatigue strength. However, for the annealed samples, irreversible hydrogen caused a decrease in fatigue strength. These results indicate that a decrease in fatigue strength by absorbing irreversible hydrogen appears remarkably by low temperature annealing.
