Browsing by Keywords "Grain growth"

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Effects of milling and annealing on formation and structural characterization of nanocrystalline intermetallic compounds from Ni-Ti elemental powders

Ghadimi, M.; Shokuhfar, A.; Rostami H.R.; Ghaffari, M. (2012)

Nickel and Titanium elemental powders with a nominal composition Ni-50 at.%Ti were mechanical alloyed in a planetary high-energy ball mill in different milling conditions (5, 10, 20, 40 and 60 h). The investigation revealed ...
Liquid-phase sintering of medical-grade P558 stainless steel using a new biocompatible eutectic additive

Salahinejad, E.; Hadianfard, M. J.; Ghaffari, M.; Mashhadi, S. B.; Okyay, Ali Kemal (Elsevier, 2012-02-02)

One of the effective approaches to reduce residual pores in powder metallurgy parts is activated liquid-phase sintering process using proper additives. In this work, for the first time, a new biocompatible additive (Mn-11.5 ...
Microstructural characterization of medical-grade stainless steel powders prepared by mechanical alloying and subsequent annealing

Salahinejad, E.; Hadianfard, M. J.; Ghaffari, M.; Amini, R.; Mashhadi, S. B.; Okyay, Ali Kemal (Elsevier, 2013)

The harmful effect of nickel ions released from conventional stainless steel implants has provided a high level of motivation for the further development of nickel-free stainless steels. In this paper, the microstructure ...