caa a22 4500 477122213 CHVBK 20180405111639.0 cr unu---uuuuu 170330e19960801xx s 000 0 eng 10.1007/BF03026097 doi (NATIONALLICENCE)springer-10.1007/BF03026097 Finite element analysis on grain boundary diffusion controlled cavity growth during high temperature fatigue [Elektronische Daten] [J. Kim, S. Nam] Finite element analysis on the growth of grain boundary cavity during high temperature low cycle fatigue is carried out. A finite element code is developed to solve this special initial-boundary value diffusion problem. The growth rates of the cavity by vacancy diffusion under the conditions of various strain rates are calculated. The size of the cavity nucleus calculated by thermodynamics is taken as the initial cavity size. The analysis results show that a cavity can be grown by the diffusion of grain boundary vacancies when the strain rate is below a critical value. However, it can be seen from the analysis that the growth rate is very low. The results coincide with the fact that the main cause of intergranular fracture under the condition of low cycle fatigue is the high nucleation rate of cavities. Springer, 1996 Kim J. Department of Automotive Engineering, Halla Institute of Technology, 220-840, Wonju, Korea aut Nam S. Department of Automotive Engineering, Halla Institute of Technology, 220-840, Wonju, Korea aut Metals and Materials The Korean Institute of Metals and Materials 2/4(1996-08-01), 227-232 1598-9623 2:4<227 1996 2 12540 https://doi.org/10.1007/BF03026097 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF03026097 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim J. Department of Automotive Engineering, Halla Institute of Technology, 220-840, Wonju, Korea aut NATIONALLICENCE 700 1- Nam S. Department of Automotive Engineering, Halla Institute of Technology, 220-840, Wonju, Korea aut NATIONALLICENCE 773 0- Metals and Materials The Korean Institute of Metals and Materials 2/4(1996-08-01), 227-232 1598-9623 2:4<227 1996 2 12540 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer