The durability of cryogenic structure materials
DOI:
https://doi.org/10.26906/znp.2020.54.2267Keywords:
structural alloys, deep cooling, low-cycle fatigue, cyclic creepAbstract
According to world statistics, the main share of destruction in engineering practice occurs precisely because of fatigue, therefore, the fatigue problem is one of the most pressing scientific and technical problems of our time, which solution requires additional complex experimental and theoretical studies. The paper presents the experimental studies results of the effect of deep cooling on low-cycle fatigue and cyclic creep of stainless structural steel 03X20N16AG6 under conditions of a pulsating cycle of an external load change with a frequency of 0.033 s-1 (2 cycles/min) in air and environments of liquid refrigerants (nitrogen and helium) at temperatures of 293, 77 and 4.2 K, respectively
References
. Strizhalo V.A. (1978). Cyclic Strength and Creep of Metals at Low-Cycle Loading at Low and High Temperatures. Kiyv: Naukova Dumka
. Larichkin A.Yu., Kornev V.M., Demeshkin A.G. (2016). Changes in Plasticity Zones and Damage Accumulation with Crack Growth at Low-cycle Loading of Quasi-Brittle Materials. Physical mesomechanics. 19(4), 38-48
. Troshchenko V.T., Lebedev A.A., Strizhalo V.A. and others (2000). Mechanical behaviour of materials at various types of loading. Kiev: Logos
. Kornev V.M. (2018). Embrittlement of Steel Structure Material at Low Temperatures and Catastrophic Failure. Physical mesomechanics. 21(2), 45-55
. Suzuki N. (2000). Low-Cycle Fatigue Characteristics of Precipitation-Hardened Superalloys at Cryogenic Temperatures, Journal of Testing and Evaluation, 28(4), 257-266. https://doi.org/10.1520/JTE12103J
. Nip K.H., Gardner L., Davies C.M. & Elghazouli A.Y. (2010). Extremely low cycle fatigue tests on structural carbon steel and stainless steel. Journal of Constructional Steel Research, 66, 96-110.
doi.org/10.1016/j.jcsr.2009.08.004
. Klyavin O.V. (1987). Physics of Plasticity of Crystals at Helium Temperatures. Moscow: Nauka
. Troshchenko V.T. (2005). Spread Fatigue Failure of Metals and Alloys: Inelasticity, Research Methods and Results. Problems of Strength, 4, 5-33.
. Sosnovsky L.A. & Makhutov N.A. (2005). General approach to assessing failure intensity during cyclic deformation, friction and complex loading, Factory Laboratory. Diagnostics of Materials, 71(2), 38-48
. Tatarchenko H.O., Medved I.I. & Biloshytska N.I. (2019). Cyclic creep of 03H13AG19 structural steel during deep freezing. Visnik of V.Dahl EUNU, 7, 80-82
. Weißgraeber P., Leguillon D. & Becker W. (2016). A review of finite fracture mechanics: Crack initiation at singular and non-singular stress raisers. Archive of Applied Mechanics, 86(1-2), 375-401
