이종알루미늄합금 FSW 접합부의 피로균열진전 특성
The presence of a crack can increase the local stress or strain, which can cause inelastic deformation and significantly reduce the life of a component or structure. Therefore, in this study, the fatigue crack growth (FCG) behaviors of friction stir welded Al 2024-T3 and Al 7075-T6 specimens were ex...
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| Published in | Han-guk haeyang gonghak hoeji (Online) Vol. 27; no. 1; pp. 37 - 42 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | Korean |
| Published |
한국해양공학회
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1225-0767 2287-6715 |
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| Abstract | The presence of a crack can increase the local stress or strain, which can cause inelastic deformation and significantly reduce the life of a component or structure. Therefore, in this study, the fatigue crack growth (FCG) behaviors of friction stir welded Al 2024-T3 and Al 7075-T6 specimens were examined, with fatigue cracks growing parallel to the dynamically recrystallized zone at variable ${\Delta}K$ values and an R ratio of 0.3. In addition, the FCG values of the base metal Al 2024-T3 and Al 7075-T6 were tested under the same conditions and parameters as comparative groups. The results showed that compared with the base metal Al 2024 specimen, which had the best fatigue property, the welded specimen had only 88% of the fatigue cycles. |
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| AbstractList | The presence of a crack can increase the local stress or strain, which can cause inelastic deformation and significantly reduce the life of a component or structure. Therefore, in this study, the fatigue crack growth (FCG) behaviors of friction stir welded Al 2024‐T3 and Al 7075‐T6 specimens were examined, with fatigue cracks growing parallel to the dynamically recrystallized zone at variable ΔK values and an R ratio of 0.3. In addition, the FCG values of the base metal Al 2024‐T3 and Al 7075‐T6 were tested under the same conditions and parameters as comparative groups. The results showed that compared with the base metal Al 2024 specimen, which had the best fatigue property, the welded specimen had only 88% of the fatigue cycles. KCI Citation Count: 0 The presence of a crack can increase the local stress or strain, which can cause inelastic deformation and significantly reduce the life of a component or structure. Therefore, in this study, the fatigue crack growth (FCG) behaviors of friction stir welded Al 2024-T3 and Al 7075-T6 specimens were examined, with fatigue cracks growing parallel to the dynamically recrystallized zone at variable ${\Delta}K$ values and an R ratio of 0.3. In addition, the FCG values of the base metal Al 2024-T3 and Al 7075-T6 were tested under the same conditions and parameters as comparative groups. The results showed that compared with the base metal Al 2024 specimen, which had the best fatigue property, the welded specimen had only 88% of the fatigue cycles. |
| Author | 이원준(Won-Jun Lee) 이효재(Hyo-Jae Lee) 박원조(Won-Jo Park) 김형진(Hyung-Jin Kim) |
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| DocumentTitleAlternate | Fatigue Crack Growth Properties of Friction Stir Welded Dissimilar Aluminum Alloys |
| DocumentTitle_FL | Fatigue Crack Growth Properties of Friction Stir Welded Dissimilar Aluminum Alloys |
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| Keywords | Alumium alloy 알루미늄 합금 Fracture surface 파면 Fatigue crack growth 피로균열진전 Friction stir welding 마찰교반용접 |
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| Title | 이종알루미늄합금 FSW 접합부의 피로균열진전 특성 |
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