Solvent debinding kinetics and sintered properties of injection moulded 316L stainless steel powder
Authors: Eroglu, S.; Bakan, H. I.
Source: Powder Metallurgy, Volume 48, Number 4, December 2005 , pp. 329-332(4)
Publisher: Maney Publishing
Abstract:A stainless steel (316L) powder having a median particle size of ∼25 m was injection moulded using binders composed of polyethylene glycols (PEG) and polymethylmethacrylate (PMMA). The PEG content was leached in water and debinding kinetics studied as a function temperature. At 40°C, the removal of PEG was controlled by dissolution of the polymer in water and by diffusion of water and PEG for leaching time <60 min and >60 min, respectively. Water soluble PEG was completely removed within 180 min and the diffusion mechanism controlled the de-binding process at 60 and 80°C. Sintered properties improved with increased sintering temperature and time. The improvement in mechanical properties was less pronounced for a longer soaking time owing to more grain coarsening.
Document Type: Research Article
Publication date: 2005-12-01
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