Abstract：
:In this study, the relationship between deformation mechanism and rolling reductions was investigated, and the effects of deformation reductions on the microstructure and mechanical properties of the alloys both cold rolled and aged were revealed. It was found that the equiaxed β grains of the Ti-30Nb-5Ta-6Zr alloy have elongated gradually with increasing the deformation reduction. The deformation mechanism of dislocation slipping, deformed twins and SIM α″ phase appeared in the alloy deformed by 23% and 66%. The type of twins of the alloy deformed by 23% and 66% are {112}〈111〉 and {332}〈113〉 respectively. When the reduction was up to 85%, dislocation slipping was the main mode of deformation accompanying with SIM α″ phase occurred. With increasing deformation reduction, the average size of lenticular precipitation α phase decreased gradually. The strength of cold rolled and aged samples increased with increasing deformation reduction, while elastic modulus decreased. Due to the precipitation α phase, the elastic modulus of aged samples was higher than cold rolled.
journal_name
J Mech Behav Biomed Materauthors
Wang Y,Zhao J,Dai S,Chen F,Yu X,Zhang Ydoi
10.1016/j.jmbbm.2013.06.006subject
Has Abstractpub_date
2013-11-01 00:00:00pages
33-42eissn
1751-6161issn
1878-0180pii
S1751-6161(13)00213-0journal_volume
27pub_type
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