Microscopic Observation of Fatigue Crack Initiation Process in Low-Carbon Steel Notched Specimens

Shuji TAIRA, Keisuke TANAKA, Jae-Gil RYU
1972 Journal of the Society of Materials Science Japan  
Sharply notched specimens of 0.03%C annealed steel were fatigued under completely reversed in-plane bending. Microstructural change in the vicinity of the notch root during fatigue process preceding crack initiation was examined by means of the X-ray microbeam diffraction technique and optical microscopy. The following are the summary of the results obtained.
doi:10.2472/jsms.21.999 fatcat:rlgssf6nwzfubdyddwutxjfarm