Fatigue strength of austenitic stainless steel in various environments: Initiation, density and distribution, and growth of small fatigue cracks.
Fatigue strength of austenitic stainless steel in various environments: Initiation, density and distribution, and growth of small fatigue cracks.
复制标题
奥氏体不锈钢在各种环境下的疲劳强度：小疲劳裂纹的萌生、密度和分布以及扩展。
DOI：
10.2472/jsms.34.816
复制
发表时间：
1985
期刊：
影响因子：
--
通讯作者：
H. Mizutani
中科院分区：
文献类型：
--
作者：
K. Tokaji;Z. Ando;H. Mizutani
Fatigue tests under rotating bending and reversed torsion were conducted in air, distilled water and 3 percent saltwater, using smooth specimens of austenitic stainless steel, SUS304. The initiation, density and distribution, and growth behaviour of small fatigue cracks were examined based on the detailed observations, and the effect of aqueous environment on fatigue strength was evaluated. Under rotating bending, the fatigue life was larger in distilled water and 3 percent saltwater than in air in the high stress region, but the fatigue strength decreased with increasing aggressiveness of test environment in the low stress region. Under reversed torsion, on the other hand, the fatigue strength was higher in an aqueous environment than in air in the whole stress region. These results were strongly related to various behaviours of small fatigue cracks such as initiation, density and growth, and were explained in terms of both cooling and corrosion effects of aqueous corrosive environment. キ ー ・ワー ド:環 境,疲 労 強 度,オ ー ス テ ナ イ ト系 ス テ ン レス鋼,疲 労 微 小 き裂,発 生 ・密 度 ・分 布 ・成 長 挙 動