Poster nano particle

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Information about Poster nano particle
Education

Published on December 21, 2013

Author: aminezazi5

Source: slideshare.net

Description

Poster nano particle

Bulk material designed with nano-size particles Yu-ichi KOMIZO Smart Processing Research Center ,JWRI Osaka University Ultra-fine grain microstructure : How to obtain the ultra-fine microstructure? Acicular ferrite in weld metal ・Dispersion of particles : What is the effective catalyst for the formation of fine grain microstructure? ・Rapid cooling Liquid 液相 Solid 固相 Rapid 急冷 凝固 cooling 10μm 10μm Al, Mg, O ② Al-Mg Spinel ③TiN 1500 molten iron ① 1600 Al-Mg-Ti-oxides(liq.) ・Mechanism of spinel dispersion in molten iron is considered that first Al-Mg-Ti oxides droplets with low interfacial energy nucleate spontaneously and grow into spinel. ④δ-Fe Solid Temperature, T / ℃ CaO-SiO2-Al2O3-MgO-CaF2 slag Microstructure control by dispersion of nano-size particles Concluding remarks ・Microstructure control by the fine dispersion of nano-size particles can be a useful technique. ・Ti-particles can act as effective inoculants for the formation of fine grain microstructure during solidification.

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