Interfacial Reactions in Ti-6Al-4V With Laser-Embedded Sic Particles and The Origin of Intergranular Corrosion Susceptibiliyt of An Al-Mg Alloy

摘要

In the first part of the paper the microstructure of Ti-6Al-4V with laser embedded SiC particles is explained. The interfacial reaction between Ti and SiC is responsible for the largely improved wear resistance of the Ti alloy. In the second part the phase responsible for the intergranular corrosion susceptibility of an Al-Mg alloy when annealed above 65 deg is identified and possible mechanisms to solve this interfacial problem are aproposed. Two examples are presented in which the enhineering of interfaces/grain boundaries has a distinct influence on the properties of the materials as a whole.