期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 27, 期 6, 页码 1215-1223出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(17)60142-0
关键词
Al-Cu-Mg-Ag alloy; thermomechanical processing; microstructure; fatigue life; fractography
资金
- Ministry of Education and Science of the Russian Federation [02.G25.31.0010]
- Ministry of Education and Science of the Russian Federation via Resolution of Russian Federation Government [218]
- [40/10-30976/NCh-NCh-01-13-KhG]
High cyclic fatigue (HCF) behavior of an AA2139 alloy belonging to Al-Cu-Mg-Ag system in T6 and T840 conditions was examined. The T840 treatment involving cold rolling with a 40% reduction prior to peak ageing provides an increase in tensile strength compared with the T6 condition. However, fatigue lifetime for two material conditions was nearly the same since there is weak effect of thermomechanical processing on micro-mechanisms of crack initiation and growth.
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