Nanostructure formation during accumulative roll bonding of commercial purity titanium
- Department of Materials Science and Engineering, Shahrood University of Technology, Shahrood 3619995161 (Iran, Islamic Republic of)
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of)
- Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 30-059 25 Reymonta St., Krakow (Poland)
In this investigation, commercial purity titanium (CP–Ti) was subjected to accumulative roll bonding (ARB) process up to 8 cycles (equivalent strain of 6.4) at the ambient temperature. Transmission electron microscopy (TEM) and X–ray diffraction line profile analysis (XRDLPA) were utilized to investigate the microstructure and grain size evolution. Both characterization techniques could clarify the non–uniform microstructure in the early stages and the uniform microstructure in the final stages of the process. The effectiveness of ARB for the fabrication of the nano–grained structure in CP–Ti was revealed. It was found that the SFE is not the only factor affecting grain refinement, as compared with other studies on ARB of FCC materials. Influence of other factors such as the melting temperature and the crystalline structure of the material was determined on the grain refinement. - Highlights: •Nano–grained commercial purity titanium was produced by accumulative roll bonding. •TEM and XRDLPA were used for the characterization of the microstructure. •Important factors affecting the grain size of ARBed materials were discussed.
- OSTI ID:
- 22689671
- Journal Information:
- Materials Characterization, Journal Name: Materials Characterization Vol. 122; ISSN 1044-5803; ISSN MACHEX
- Country of Publication:
- United States
- Language:
- English
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