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Liquid-phase enhanced sintering of powder metallurgy(P/M)316L stainless steel by addition of sintering aids was studied.2%-8% of pre-alloyed Fe-Mo-B powder with two different particle sizes was added as sintering aids,and the specimens were sintered in vacuum at 1 200-1 350 ℃.The results show that the fine Fe-Mo-B powder(5-10 μm)has stronger activated effect.The sintered density increases with the increase in sintering aid content or sintering temperature.Warm compaction has a better effect on the control of dimensional precision of compacts.The prealloyed Fe-Mo-B powder deviated from Mo2FeB2 component can also be sintering aid of P/M 316L stainless steel.
Liquid-phase enhanced sintering of powder metallurgy (P / M) 316L stainless steel by addition of sintering aids was studied.2% -8% of pre-alloyed Fe-Mo-B powder with two different particle sizes was added as sintering aids, and the specimens were sintered in vacuum at 1 200-1 350 ° C .; The results show that the fine Fe-Mo-B powder (5-10 μm) has stronger activated effect. the sintered density increases with the increase in sintering aid content or sintering temperature. Arm compaction has a better effect on the control of dimensional precision of compacts. The prealloyed Fe-Mo-B powder deviated from Mo2FeB2 component can also be sintering aid of P / M 316L stainless steel.