Sintering Of Powder Premixes
Abstract
Advances in the understanding of the sintering of powder premixes have contributed significantly to the growth of the ferrous powder metallurgy industry. This includes sintering both in the solid state and in the presence of a liquid phase. In this article, the sintering of iron powder premixes containing: 1) graphite; 2) nickel and graphite; 3) copper and graphite; 4) Phosphorus as ferrophosphorus; and, 5) boron as ferroboron are discussed. The evolution of microstructure and mechanical properties are discussed as well.
INTRODUCTION
The growth of ferrous powder metallurgy (P/M) over the past five decades has been outstanding as this technology is proving itself as an alternative lower cost process to machining, casting, stamping, forging, and other similar metal working technologies. The growth has been spurred by continuing technological advancements in powder making and processing, alloy development, and parts production methods. ..