Zhang Xin, Liu Jing, Li Guangqiang. Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(2): 17-20,47.
Citation:
Zhang Xin, Liu Jing, Li Guangqiang. Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(2): 17-20,47.
Zhang Xin, Liu Jing, Li Guangqiang. Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(2): 17-20,47.
Citation:
Zhang Xin, Liu Jing, Li Guangqiang. Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering[J]. IRON STEEL VANADIUM TITANIUM, 2006, 27(2): 17-20,47.
The SPS(spark plasma sintering) process was used to sinter 304 austenitic stainless steel powder made by milling.The sintering temperature is 900 ℃,and the sintering stress are 30 MPa and 50 MPa respectively.The phase composition and crystallite size of sintered sample were analyzed by XRD,SEM and TEM.The results show that the sintered sample matrix is austenite,and the crystallite size is 100~200 nm approximately.The density of the sample closes to steel,this show the sintering samples attain to high densification.The rigidity of the samples is higher than that of common austenitic stainless steel.The electrochemistry erosion and metallographic testing show that the more compact the better corrosion resistance of samples is.
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