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Local deformation patterns in Ti-6Al-4V under tensile, fatigue and dwell fatigue loading

Abstract:

We have used EBSD orientation mapping and digital image correlation-based strain mapping to investigate inhomogeneous deformation of Ti-6Al-4V in tension, fatigue and cold-dwell fatigue. Strong strain inhomogeneities were found in all loading modes and in each case the pattern of high and low strain is established relatively early in the tests. Comparing the orientation and strain maps shows that grain-grain interactions are the primary cause of strain concentration. Surface grains with the c...

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Journal:
International Journal of Fatigue More from this journal
Volume:
43
Pages:
111-119
Publication date:
2012-10-01
DOI:
ISSN:
0142-1123
Language:
English
Keywords:
Pubs id:
pubs:335350
UUID:
uuid:6c62273a-3d63-4439-adf5-5175f5bb65c9
Local pid:
pubs:335350
Source identifiers:
335350
Deposit date:
2013-11-17

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