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 Posted: Sun 23:39, 09 Jan 2011 Post subject: ugg stivali 25 ℃ and 800 ℃ TiAl based al |
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25 ℃ and 800 ℃ TiAl based alloy wear a piece of fatigue crack growth
Management and micro-structure. Greatly reduced rate of growth. Films of these alloys by the orientation of the crack axis n is approximately equal to, or a growth phase and the direction of the impact of different number of smaller,[link widoczny dla zalogowanych], easy to wear pieces crack growth. Amount of p phase. In this paper, the heat treatment into a 7. When the crack is loaded to the shaft with a 45. The film microstructure + d sheet (film thickness 0.5 ~ 2m, piece about the direction of older, often caused by the secondary cracking. In the film with 1.2ram), the nominal composition of Ti-47A1 -0.9Cr,[link widoczny dla zalogowanych], or pieces of a 0.8ti near the interface between the formation of a crack, and ultimately dominant, and a 2.6Nb (busy child percentage) Total base at 25 ℃ and 800 ℃ are connected to the main crack. Microstructure shows a very rough fracture surface. The fatigue crack growth behavior. This process may be delayed under high △ K found in some of the crack: the rapid growth along the slice direction. 1.80O ℃ in vacuum fatigue crack growth rate to 8. If the crack growth direction perpendicular to the film, the crack in the air at 25 ℃ for about 1O times of slow crack growth threshold is higher than the width of the incremental pieces connected with the system. Rarely occurs secondary to open higher. Crack. 2. Fatigue crack growth is a gap in nature. And in the aluminum table 9. Results from this study on the mantis, film width (from the gold, and other as seen in titanium Taijin. Treatment decisions) on the fatigue crack growth behavior that has too 3. Mode I crack tip opening is blunt or sharp impact. Rui? Depends on the role of growth cycle. Such as other alloys that l0. The on-chip determination of fragmentation required is 0.08 left-like strain, passivation crack tip shows the greatest strain. Split the right, and 25 ℃, the crack tip to withstand up to 0.3 strain. The opening tip mode I pattern level at 25 ℃ △ Kth with other units in the case, the crack tip strain is about 0.03. Show very small compared to gold, and 800 ℃, is similar to other co-80o ℃ large strain when the crack tip measured 0.5 suspected of gold as at room temperature. 11.25 ℃, the crack tip act of discovery by environmental 4.254 strain distribution around the crack than the other test (air or vacuum) and the Environmental ring load rate (0.3 ~ 10 material is more similar to the mathematical model I loaded crack The total Hz) of. Counted. Grew up with the film perpendicular to the strain distribution around the crack is not 12. Fatigue crack closure Taijin show the same platform and the other sheet by a high degree of anisotropy significantly affect the structure, but relationships. △ Kth used to estimate a model for the orientation film that is not close to the crack orientation, the anisotropy of the right to display,[link widoczny dla zalogowanych], because the microstructure morphology of the other, such as \and so on. 5. △ K in the low, the crack growth direction and 13 by the film industry. As the Taijin long cracks and other titanium loaded Axis Orientation,[link widoczny dla zalogowanych], and large crack growth behavior of a similar nature park. Therefore, previously used for other materials. The presence of film industry group delay. The so-called \The crack tip geometric model also apply to this material. Such is the orientation of the same by the arrangement of the composition of film az \* Arrange orientation is different. Whether in the film industry and the chip are the Miss Edie Quoted {(MetallurgicalTnaflSaC now crack growth. A tions)) 1993. NL. 7. P. 1555 A】 2
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