The influence of grain size on the high cycle fatigue crack initiation of a metastable beta Ti alloy

Chait, Richard; DeSisto, Thomas S.

doi:10.1007/bf02661593

Cited by 31 publications

(13 citation statements)

References 6 publications

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“…HCF behavior of a given material is often displayed on a stress-life (S-N) curve [25]. The smooth bar HCF S-N curves of Ti-55531 alloy with LM and BM are shown in Fig.…”

Section: High Cycle Fatigue Propertiesmentioning

confidence: 99%

Effect of microstructure on high cycle fatigue behavior of Ti–5Al–5Mo–5V–3Cr–1Zr titanium alloy

Huang

Zhang

Xin

et al. 2017

International Journal of Fatigue

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“…HCF behavior of a given material is often displayed on a stress-life (S-N) curve [25]. The smooth bar HCF S-N curves of Ti-55531 alloy with LM and BM are shown in Fig.…”

Section: High Cycle Fatigue Propertiesmentioning

confidence: 99%

Effect of microstructure on high cycle fatigue behavior of Ti–5Al–5Mo–5V–3Cr–1Zr titanium alloy

Huang

Zhang

Xin

et al. 2017

International Journal of Fatigue

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“…Previous reports have identified sources such as fine a phase in a-type titanium alloy [16], a phase in a þ b type titanium alloy [17,18], and grain boundaries in b-type titanium alloy [19]. Although the internal fatigue crack initiation sites were not identified in this study, the location where stress concentration occurs is generally due to the a grain boundary in a-type titanium alloy.…”

Section: Internal Fatigue Crack Initiation Sitementioning

confidence: 59%

Effects of surface roughness and notch on fatigue properties for Ti–5Al–2.5Sn ELI alloy at cryogenic temperatures

Yuri¹,

Ono

Ogata

2003

Science and Technology of Advanced Materials

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To evaluate material risk caused by human-error, the effects of surface roughness and notch on the fatigue properties of Ti-5Al -2.5Sn ELI alloy have been investigated at cryogenic temperatures. Specimens with surface roughness changed by emery papers (Grade #600, #100) and notched specimens were prepared (K t ¼ 1:5; 3). The S-N curves shifted to higher stress level with a decrease of the test temperature. Regarding the effect of surface roughness, the fatigue strength of the #100-roughness specimens was a little lower than those of the #600-roughness specimens. Fatigue crack initiation sites of each surface roughness specimen at 4 K were found in the specimen interior (internal type fracture). On the other hand, the fatigue strength of the notched specimens was substantially lower than those of the surface roughness specimens. Although fatigue crack initiation sites of the K t ¼ 3 notched specimen were at the notch root (surface type fracture), those of the K t ¼ 1:5 notched specimen were in the specimen interior. The location of the fatigue crack initiation sites changed from the internal type fracture for K t ¼ 1:5 notched specimens to the surface type fracture for K t ¼ 3 notched specimens. Therefore, the K t values of the internal fatigue crack initiation sites correspond between 1.5 and 3. The root area analysis, which is the size of the crack propagation plane as a shape parameter, the fatigue strength depends on the ffiffiffiffiffi ffi area p size (internal fatigue crack initiation site size). Fatigue properties of surface roughness and notched specimens at cryogenic temperatures were expected to be more improved when the grain size of the materials was minimized, i.e. fatigue crack initiation sites were minimized. q

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“…For example, it has been reported [18][19][20] that even for the microstructures with equal yield strength of a given material, their S-N curves can be obviously different. This can be attributed to the difference in the crack initiation behavior between different microstructures [21][22][23].…”

Section: Introductionmentioning

confidence: 97%

The crack initiation behavior and the fatigue limit of Ti–5Al–5Mo–5V–1Cr–1Fe titanium alloy with basket-weave microstructure

Shi

Zeng

Xue

et al. 2015

Journal of Alloys and Compounds

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The influence of grain size on the high cycle fatigue crack initiation of a metastable beta Ti alloy

Cited by 31 publications

References 6 publications

Effect of microstructure on high cycle fatigue behavior of Ti–5Al–5Mo–5V–3Cr–1Zr titanium alloy

Effect of microstructure on high cycle fatigue behavior of Ti–5Al–5Mo–5V–3Cr–1Zr titanium alloy

Effects of surface roughness and notch on fatigue properties for Ti–5Al–2.5Sn ELI alloy at cryogenic temperatures

The crack initiation behavior and the fatigue limit of Ti–5Al–5Mo–5V–1Cr–1Fe titanium alloy with basket-weave microstructure

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