Abstract
A new Al–3Ti–1B–0.2C master alloy with uniform microstructure was prepared using a melt reaction method in this study. In the master alloy, TiB2 particles exhibit hierarchical dendritic morphology, while TiC particles doped with a trace amount of B show a polyhedral morphology. The grain refining performance of the master alloy on A356 alloy has also been investigated. It is found that the addition of 0.2wt.% Al–3Ti–1B–0.2C master alloy can induce very effective grain refinement of the A356 alloy. The average grain size of α-Al is reduced to 167±8μm from about 1570μm and the grain refining efficiency does not fade obviously within 60min. Therefore, the mechanical properties of the A356 alloy have been improved obviously by the addition of the Al–3Ti–1B–0.2C master alloy, including the ultimate tensile strength, yield strength and elongation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
