Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering

Zhang Xin; Liu Jing; Li Guangqiang

Volume 27 Issue 2

Apr. 2023

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2006 > 27(2): 17-20,47

Diao Risheng, Wang Jing, Li Hongfang. DESULPHURIZATION AND REDUCTION PROCESS BETWEEN TiO2-CONTAINING SLAG AND MOLTEN PIG IRON[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(1): 10-15.

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.

Diao Risheng, Wang Jing, Li Hongfang. DESULPHURIZATION AND REDUCTION PROCESS BETWEEN TiO2-CONTAINING SLAG AND MOLTEN PIG IRON[J]. IRON STEEL VANADIUM TITANIUM, 1994, 15(1): 10-15.

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.

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Preparation of Ultrafine Grain Austenitic High-nitrogen Stainless Steel by Spark Plasma Sintering

School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China

Received Date: 2006-01-20
Available Online: 2023-12-06

Abstract

Abstract

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.
- spark plasma sintering,
- densification,
- electrochemistry erosion,
- stainless steel,
- austenite,
- powder

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