Abstract
An Al-10 wt-%Sr alloy was cast using the melt spinning process to provide ribbons approximately 25 μm in thickness which could be used to investigate the effect of rapid solidification on microstructures. Nanoscale eutectic microstructures were found in the melt spun alloy. The microstructures consisted of two completely eutectic alternate bright and dark zones being in and out of contrast in the TEM. The eutectic Al4Sr phases appeared stripelike and irregularly blocky in the dark zones, while regularly stripe-like in the bright zones. The typical size of the Al4Sr phases was about 10 nm in thickness and 200 nm in length. The very fine eutectic microstructures resulted in the broadening of the XRD peaks of the melt spun Al- 10Sr alloy in contrast to the non-rapidly solidified alloy. Furthermore, the eutectic composition shifted from 2.4 wt-% in equilibrium to about 10 wt-% under rapid solidification processing conditions and eutectic temperature decreased from 654 to 647.1°C.
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.
