TY  - EJOU
AU  - Nishida, S.  
AU  - Hattori, N.  

TI  - Existence of Non-propagating Micro-cracks under the Fatigue Limit
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2007
VL  - 4
IS  - 3
SN  - 1933-2815

AB  - The authors have experimentally confirmed that the non-propagating microcracks are observed in the low carbon plain specimens subjected to the stress of
fatigue limit by 1×107 cycles and not observed in those of pure copper and aluminum alloys etc.. In addition, there exists clear fatigue limit in typical austenitic
stainless steel SUS304 but not exist the non-propagating micro-cracks subjected to
the stress of fatigue limit by 1×107 cycles. On the other hand, there exist not only
clear fatigue limit but also non-propagating micro-cracks in the high manganese
austenitic steel (HMA 0.20%C steel). Then, the authors have focused to the existence of non-propagating micro-cracks under the fatigue limit and investigated the
effect of carbon content on the above existence using SUS304 and high manganese
austenitic steels (HMA steels) with changing its carbon content only and clarified
that the limit of the existence of non-propagating micro-cracks under the stress of
fatigue limit by 1×107 cycles is concluded to be between 0.10% ∼0.20% of carbon
content.
KW  - 

DO  - 10.3970/icces.2007.004.179