高強度鋼の長寿命疲労挙動に及ぼす切欠きと表面粗さの影響(<特集>疲労)

（２）疲労き裂の寸法が非破壊検査により特定される場合 ☆ 非破壊検査では，主に亀裂の形状・寸法を調査する．

The Palaeontological Society of Japan (PSJ).. NII-Electronic

The bacteria on the hexagonal plates O,1um in dtameter CC, arrows) and unicellular bacteria aiter 90 days

The Association for the Geological Collaboration in Japan (AGCJ).. NII-Electronic

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The larger the amount of Co in the three alloys is, the higher the dislocation density in the alloys peak-aged and rolled to a 25% and a 90% reduction is. The amounts of

Fig, 1.5 Comparison between result of plastic strain field by crystal plasticity FEA and fatigue test on crack initiation s ite in Ni alloy, a mapped region showing the grain

To accomplish the aim, the following investigations has been conducted; 1 explication of dominant factor determining fatigue crack initiation life in practical high strength