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Investigation of Mechanical Alloying Process Parameters on Fe-Mn-Si Based

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: A. Umut Söyler, Burak Özkal, Leandru G. Bujoreanu

Editorial: Wiley, TMS (The Minerals, Metals & Materials Society), February 27–March 3, in San Diego, California, U.S.A. , Supplemental Proceedings: Volume 1: Materials Processing and Energy Materials, p.577-583, 2011.

Rezumat:

In this work, Fe-Mn-Si based powder mixture having shape memory alloy composition prepared
by mechanical alloying and systematically studied under different milling conditions. Effect of
ball to powder ratio (BPR), type and amount of binder addition were investigated as process
parameters. All mechanical alloying studies were performed under argon atmosphere and
stainless steel balls and vials were used as milling media. X-Ray diffraction (XRD), laser particle
size analysis (LPS), scanning electron microscopy (SEM) and optical microscopy (OM) technics
were used to characterize the powders. Results were discussed for the evaluation of powder
metallurgy which can be an alternative technique to obtain Fe-Mn-Si based shape memory alloys
with the required composition and microstructural homogeneity in contrast to disadvantages of
classical metallurgy.

Cuvinte cheie: Fe-Mn-Si System, Mechanical Alloying, SMA