Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9796240 | Materials Science and Engineering: A | 2005 | 11 Pages |
Abstract
The evolution of microstructure and texture during cold rolling of commercial-purity titanium (CP-Ti) was studied with particular reference to deformation twinning and dislocation slip. For low to intermediate deformation up to 40% in thickness reduction, the external strain was accommodated by slip and deformation twinning. In this stage, both compressive ({112¯2}ã112¯3¯ã) and tensile ({101¯2}ã101¯1¯ã) twins, as well as, secondary twins and tertiary twins were activated in the grains of favorable orientation, and this resulted in a heterogeneous microstructure in which grains were refined in local areas. For heavy deformation, between 60 and 90%, slip overrode twinning and shear bands developed. The crystal texture of deformed specimens was weakened by twinning but was strengthened by slip, resulting in a split-basal texture in heavily deformed specimens.
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Authors
Y.B. Chun, S.H. Yu, S.L. Semiatin, S.K. Hwang,