The results showed that the milling time 2,4,6 小時 of
304 stainless steel powder, with the increase of plastic strain, so that by the austenitic microstructure to martensite. Milling time 8,10 小時 of
304 stainless steel powder, with increasing temperature, to bring the organization back into austenite.
Found that the milling time 6,10 hours of
304 +10 wt% TiC composite alloy sintered at 1335℃ temperature and holding temperature 2 hours under vacuum sintering relative density of 98% to high density. Shows that, after the ball milling process of the strengthening phase TiC effective dispersion strengthening phase in
304 stainless steel base, effectively hinder dislocation slip, significantly improve their mechanical properties.
Keyword:TiC;mechanical alloying;stainless steel;metal matrix composite;vacuum sintering
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