材料科学
微观结构
碳化硼
复合材料
腐蚀
碳纳米管
纳米复合材料
合金
金属间化合物
硼
冶金
有机化学
化学
作者
Esra Zengin,Hayrettin Ahlatci,Hüseyin Zengin
标识
DOI:10.1177/00219983221149794
摘要
In this study, microstructure, mechanical, tribological and corrosion properties of boron carbide (B 4 C) and carbon nanotubes (CNT) reinforced hybrid AISI 316L stainless steel matrix nanocomposites were investigated. The AISI 316L stainless steel alloy and 316L-1B 4 C-1CNT (vol%), 316L-2B 4 C-2CNT (vol%), 316L-4B 4 C-4CNT (vol%) composites were fabricated by hot pressing under vacuum conditions. The fabricated samples showed minor porosities regardless of the concentration of B 4 C and CNT. Microstructure investigations revealed that a slight grain refinement was achieved with increasing incorporation of B 4 C and CNT. Furthermore, Fe 3 C and Cr 23 C 6 intermetallics progressively formed along the grain boundaries in the hybrid composites. The hardness, compressive yield strength and wear resistance of 316L stainless steel exhibited continuous improvement with increasing additions of B 4 C and CNT. However, the hybrid composites exhibited higher susceptibility to pitting corrosion.
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