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X-Ray tomography study on porosity and particle size distribution in In Situ Al-4.5Cu-5TiB2 Semisolid rolled composites
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Morankar, Swapnil, Mandal, Monalisa, Kourra, Nadia, Williams, M. A., Mitra, Rahul and Srirangam, Prakash (2019) X-Ray tomography study on porosity and particle size distribution in In Situ Al-4.5Cu-5TiB2 Semisolid rolled composites. JOM . doi:10.1007/s11837-019-03385-z ISSN 1047-4838.
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WRAP-x-ray-tomography-porosity-particle-semisolid-composites-Srirangam-2019.pdf - Publisher's Proof Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (3628Kb) | Preview |
Official URL: https://doi.org/10.1007/s11837-019-03385-z
Abstract
X-ray computed tomography (XCT) was used for three-dimensional (3D) visualization of the internal microstructure and quantification of the porosity and second-phase particles in Al-4.5Cu-5TiB2 composites prepared by an in situ liquid metallurgy casting route. The as-cast composites were subjected to hot rolling and mushy-state rolling for deagglomeration and to achieve a uniform distribution of CuAl2-TiB2 particle clusters. Qualitative results obtained by scanning electron microscopy (SEM) and quantitative results obtained by XCT both showed that mushy-state rolling as well as hot rolling resulted in fragmentation and a homogeneous distribution of the CuAl2-TiB2 particle clusters, with the mushy-state-rolled composite exhibiting the highest number of smaller-size particles. The porosity was increased in both rolling conditions through debonding of particles due to the compressive force during solid-state deformation along with the quick solidification of the solute-rich liquid during mushy-state rolling. These results show that application of secondary processes such as hot-rolling and mushy-state rolling can help to achieve a relatively more uniform particle distribution in Al-4.5Cu-5TiB2 in situ composites
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Library of Congress Subject Headings (LCSH): | Composite materials, Metallic composites, Tomography | ||||
| Journal or Publication Title: | JOM | ||||
| Publisher: | Springer New York LLC | ||||
| ISSN: | 1047-4838 | ||||
| Official Date: | 8 February 2019 | ||||
| Dates: |
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| DOI: | 10.1007/s11837-019-03385-z | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||
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