The effect of the lower stress level on the cyclic creep behavior of an ods superalloy
作者： William L. Kimmerle , Vincent C. Nardone , John K. Tien
DOI: 10.1007/BF02668551
关键词: Structural material 、 Inconel 、 Superalloy 、 Materials science 、 Pinning points 、 Composite material 、 Stress relaxation 、 Creep 、 Metallurgy 、 Relaxation (physics) 、 Work (thermodynamics)
摘要: Cyclic creep and stress rupture results are reported discussed as a function of the lower applied load for INCONEL MA6000, which is mechanically alloyed oxide dispersion strengthened (ODS) γ’ precipitation nickel-base superalloy. In prior work, very large decreases in effective minimum cyclic rate, based on time at maximum load, were found to occur testing using near zero. The present show that this decrease rate depends value load. As increases, increases proportionally, but remains less than corresponding static rate. values rates shown be related magnitude anelastic strain recovery occurring during portion test. also used improve relaxation model materials with strong pinning points.
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