Introduction This Introduction is talking about the aluminium alloys by dispersion strengthening and precipitation hardening. Firstly, is the dispersion strengthening to introduce. The dispersion strengthening is the some of metal alloys of hardness may be raise by some very small and even dispersed particles in the origin phase matrix. Whether inside the powder compaction contain of some insoluble particles ,this call dispersion strengthening. The other phases of the particle are normally the most
Precipitation hardening is a process that using very high temperature to strengthen an object such as , metal alloy and aluminium , precipitation hardening process also referred to age hardening . There are three main process that involve in Precipitation Hardening , the first process is Solution Treatment , second process is Quenching , and thirdly is Aging . On the other hand , Dispersion strengthening only have two process which is aluminium alloys made by powder metallurgy are used in the