Effect of Aging Condition on Fatigue Properties of Ni-Base Super Alloy Inconel 718 at Room Temperature
| Autor: | Yuzo Nakamura, Masahiro Goto, Yoshihisa Ohzono, Shogo Yoshimi, Norio Kawagoishi |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Base (chemistry) Mechanical Engineering Alloy Metallurgy technology industry and agriculture Bending fatigue engineering.material equipment and supplies Fatigue limit Superalloy chemistry Mechanics of Materials engineering General Materials Science Growth rate Inconel |
| Zdroj: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 74:994-999 |
| ISSN: | 1884-8338 0387-5008 |
| DOI: | 10.1299/kikaia.74.994 |
| Popis: | Rotating bending fatigue tests were carried out using partially notched specimens of Ni-base super alloy Inconel 718 at room temperature in order to investigate the effect of aging condition on fatigue properties. Aging conditions selected were the under-aged and the over-aged conditions with the same hardness and the peak-aged condition. The conventional double-aged condition was also selected for comparison. Fatigue strength of the double-aged condition was the highest among the alloys, especially at fatigue limit. The growth rate of a crack smaller than the length of a few grains was suppressed in the double-aged alloy, though the growth rates of a longer crack were nearly the same in all of the alloys. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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