タフトライド処理材の疲労強度 : SUS 304B材の場合

概要

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The rotating bending fatigue tests were carried out on the tufftrided smoothed specimen (ρ= 100R), U-notched specimen (ρ=5^R), and nitrogen contained smoothed specimen made of SUS 304B stainless steel. The results obtained are summarized as follows ; (1) The ratio of the fatigue strength of the tufftrided smoothed specimen to that of the non-tuff-trided specimen was at most 1.1 even if it was tufftrided for 240 min. (2) The fatigue strength of the U-notched tufftrided specimen was higher than that of the tufftrided smoothed specimen. (3) The fatigue strength of the nitrogen contained smoothed specimen was higher than that of the tufftrided smoothed specimen. (4) The fatigue limit of the U-notched specimen (ρ=5^R) can be estimated approximately using the hardness distribution obtained from the specimen after the fatigue test.
社団法人日本材料学会の論文
1977-04-15