Microstructure and Properties of Gravity Sintered 316L Stainless Steel Powder with Nickel boride Addition
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The present work demonstrates a procedure for synthesis of stainless steel powder by gravity sintering method. As an additive to the basic powder, NiB powder was added in the amount of 0.2 - 1.0 wt.%. Gravity sintering was done in vacuum, at the temperatures of 1100 degrees C - 1250 degrees C, in the course of 3 - 60 min, using ceramic mould. Structural characterization was conducted by XRD, and microstructural analysis by optical and scanning electron microscope (SEM). Mechanical properties were investigated by tensile tests with steel rings. Density and permeability were determined by standard techniques for porous samples. Gravity sintered stainless steel with NiB addition had more superior mechanical and physico-chemical properties compared to stainless steel obtained by standard powder metallurgy procedures - pressing and sintering.
Кључне речи:Stainless steel filters / Gravity sintering / NiB additive / Microstructure / Mechanical and physical properties
Извор:Science of Sintering, 2016, 48, 3, 293-302
- Утицај нано и микроструктурних конституената на синтезу и карактеристике савремених композитних материјала са металном основом (RS-172005)
ISSN: 0350-820X (print)