The Effects of Test Stress and Microstructure for Cold Dwell Fatigue Properties of Ti-6Al-4V and Its Life Assessment.
نویسندگان
چکیده
Low cycle fatigue life of Ti and alloys decreases due to tensile stress dwell even at ambient temperature. This phenomenon is called Cold Dwell Fatigue (CDF). CDF properties are affected by time, test stress, microstructure. In our previous study, the effects time assessment linear cumulative damage rule were reported. The microstructure for discussed in this study. Test was from 0.85 0.955 σ0.2 influenced life. As strain accumulation during dwell, rupture both On other hand, elongation only stress. Considering dependence on important ductility exhaustion lead calculation creep-fatigue as DF+DC~1 (DF: damage, DC: creep damage).
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ژورنال
عنوان ژورنال: Journal of The Society of Materials Science, Japan
سال: 2021
ISSN: ['0514-5163', '1880-7488']
DOI: https://doi.org/10.2472/jsms.70.323