Improving the Dimensional Stability and Mechanical Properties of AISI 316L + B Sinters by Si3N4 Addition.

ABSTRACT: The following paper describes a new and effective method to obtain high-density sinters with simultaneously decreased distortions, produced by one press and sinter operation. This effect was achieved through the induced disappearance of the eutectic liquid phase. The study was carried out on AISI 316L stainless steel powder that was mixed with elemental boron and silicon nitride. Boron was used as a sintering process activator. The scientific novelty of this publication consists of the use of a silicon nitride as a solid-state nitrogen carrier that was intended to change the borides' morphology by binding boron. Based on the thermodynamic calculations, 20 blends of various compositions were tested for physical properties, porosity, microstructure, and mechanical properties. Moreover, phase

SUBMITTER: Skalon M 

PROVIDER: S-EPMC6600792 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature