Aluminum as strong as titanium. Owing to the superfast solidification in the melt-spinning process, the crystalline structure within the material is very small (± 2 micron). The various intermetallic compounds as well as the components with a low solubility are distributed finely and homogeneously over the metal matrix, thereby forming a very homogeneous microstructure. To a great extent, these factors contribute to the higher strength of RSP alloys.
The two pictures below show the difference in microstructure between an RSP alloy and a conventionally cast aluminum alloy, although they are identical in chemical composition.
left: RSP microstructure, right: conventional microstructure
