کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1579287 | 1514827 | 2010 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of deformation inhomogeneity on the microstructure and mechanical properties of large-scale rib–web component of titanium alloy under local loading forming Effect of deformation inhomogeneity on the microstructure and mechanical properties of large-scale rib–web component of titanium alloy under local loading forming](/preview/png/1579287.png)
In the present paper, the effect of deformation inhomogeneity on the microstructure and mechanical properties of large-scale rib–web component of TA15 titanium alloy under near-β local loading forming was investigated. It is found that four different microstructures can be produced under near-β local loading forming with the variation of deformation degree and thermal processing path: (primary α phases + clustered lamellar α phases + transformed β matrix) produced by small deformation; (primary α phases + disordered lamellar α phases + aggregated transformed β matrix) produced by large deformation in the first-loading step; (primary α phases + partly globularized second α phases + transformed β matrix) produced by moderate deformation in the second-loading step; (primary α phases + fully globularized second α phases + aggregated transformed β matrix) produced by large deformation in the second-loading step. With the increase of strain, the volume fraction of primary α phases increases, while the grain size increases first and then decreases. The comprehensive mechanical properties under local loading are close to that under integral loading.
Journal: Materials Science and Engineering: A - Volume 527, Issues 21–22, 20 August 2010, Pages 5391–5399