TiN纳米颗粒增强SAF 2205的磨损和腐蚀性能与放电等离子烧结保温时间的关系

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2018-04-17 DOI:10.1109/ICMIMT.2018.8340425

S. R. Oke, O. Falodun, B. Obadele, M. R. Mphahlele, P. Olubambi, O. Ige

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引用次数: 5

摘要

采用火花等离子烧结(SPS)法制备了含5 vol% TiN纳米颗粒的双相不锈钢。考察了烧结保温时间、显微组织、密度、显微硬度、腐蚀磨损等因素的影响。结果表明:铁素体和奥氏体为主要相;烧结保温时间延长至5 min以上，析出的氮化铬(Cr2N)的体积分数随保温时间的延长而增加。复合材料的显微硬度和密度随保温时间的延长而增加。随着保温时间的延长，复合材料的耐蚀性逐渐下降，而保温时间为10 min时，复合材料的耐磨性最佳。

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Dependence of wear and corrosion properties on holding time of spark plasma sintered SAF 2205 reinforced with TiN nanoparticles

The In this study, duplex stainless steel containing 5 vol% TiN nanoparticles was fabricated by means of spark plasma sintering (SPS). The effect of sintering holding time, microstructure, density, microhardness, corrosion and wear was investigated. The results showed that ferrite and austenite were the dominant phase. New phase of chromium nitride precipitated (Cr2N) was formed when sintering holding time was increased above 5 min. The volume fraction of the precipitated nitrides increased with the increase in the holding time. The microhardness and density of the composites was increased with the increase in holding time. The corrosion resistance of the composites degraded with the increase in the holding time while, the best wear performance was attained with 10 min holding time.

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来源期刊

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)

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