Microstructure and properties of gravity sintered 316l stainless steel powder with nickel boride addition

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?C-1250?C, in the course of 3 - 60...

Full description

Saved in:
Bibliographic Details
Published in:Science of sintering 2016-09, Vol.48 (3), p.293-302
Main Authors: Bozic, Dusan, Vilotijevic, Miroljub, Ruzic, Jovana, Jovanovic, Uros, Stasic, Jelena
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Borides
Gravitation
gravity sintering
Heat resistant steels
mechanical and physical properties
microstructure
NiB additive
Powder metallurgy
Scanning electron microscopy
Sintering (powder metallurgy)
stainless steel filters
Stainless steels
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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?C-1250?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.
ISSN:0350-820X
1820-7413
DOI:10.2298/SOS1603293B