Abstract
Cu-8mass%Ti-4mass%B alloy powder was prepared by the mecanical alloying (MA) using high energy ball mill. Vacuum hot pressing (VHP) of the MA powder was carried out under various conditions. : the treating temperature range was 673 to 873K, the applied pressure was 425 to 1420MPa and the treating time was up to 18. Oks.
Relation between mechanical properties of the compact and their VHP condi-tions were investigated. Volume fraction of pore in the VHP compact was decreased with increasing the applied pressure and the treating temperature. Rupture strength in VHP compact was increased with increasing the treating temperature and treating time. It was found out that the copper-rich phase forms at the contact region between particles by the VHP particles at 873K, resulting in the high rupture strength. Compact of MA powder in the VHP become denser than the sample sintered after the cold pressing.
