Sintered Iron Based Materials

Generally there is a huge application of powder metallurgy produced parts, especially in the automotive industry.
The complexity of these parts however can mean that through the presence of pores crack propagation can be a very real problem which needs to be addressed through various alloying and process techniques. Continue reading

Iron Spark Plasma Sintering (SPS): Part One

Spark Plasma Sintering (SPS) is a sintering technique which is well matched to mechanically milled materials such as tool steels due to its low temperature and short cycle time.
Tool steels have been specifically manufactured to exhibit exceptionally high strain hardening, a characteristic which can be undone by high temperature sintering processes such as hot isostatic pressing. Continue reading

Sinter Rotary Forging: Part One

Sinter rotary forging is one of the prominent sinter forming processes and uses pressed and sintered metal powder preforms as starting material. The sinter forming technique combines the advantages associated with two well-known techniques, namely powder metallurgy and conventional forming. Continue reading

Spark Plasma Sintering

The SPS process is expected to find increased use in the fabrication of functionally graded materials (FGMs), intermetallic compounds, fiber reinforced ceramics (FRC), metal matrix composites (MMC) and nano crystalline materials, which are difficult to sinter by conventional sintering methods.
The major interest in this process, when the sintering parameters have been mastered, is linked to the extreme rapidity of the thermal treatment.

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