Dimensional Changes in Some Iron-Based Powder Metallurgy Alloys

Abstract

The purpose of this paper is to present the dimensional changes in some ironbased (P/M) alloys. The specimens produced from atomized iron powder and alloyed powder with different sizes (150 μm) were subjected to compaction at 400 and 600 MPa. After compaction, the specimens were sintered at 1150 ºC for 1 h. The density of green and sintered iron and ironbased alloys, the mechanical properties (hardness) and dimensional changes were evaluated.

Keywords

• powder metallurgy
• sintering
• density
• dimensional changes