Cholewa Mirosław, Wróbel Tomasz, Baron Czesław, Morys Marcin
Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, 44-100 Gliwice, Poland.
Materials (Basel). 2021 Nov 10;14(22):6762. doi: 10.3390/ma14226762.
The paper discusses a potential composite produced using the casting method, where the matrix is gray cast iron with flake graphite. The reinforcement is provided by granular carborundum (β-SiC). The article presents model studies aimed at identifying the phenomena at the contact boundary resulting from the interaction of the liquid matrix with solid reinforcement particles. The scope of the research included, primarily, the metallographic analysis of the microstructure of the resulting composite, carried out by using light (LOM) and scanning electron (SEM) microscopy with energy dispersive X-ray spectroscopy (EDS) analysis. The occurrence of metallic phases in the boundary zone was indicated, the contents and morphology of which can be optimized in order to achieve favorable functional properties, mainly the tribological properties of the composite. In addition, the results obtained confirm the possibility of producing similar composites based on selected iron alloys.
本文讨论了一种采用铸造法生产的潜在复合材料，其基体为具有片状石墨的灰口铸铁。增强材料由粒状金刚砂（β-SiC）提供。本文介绍了模型研究，旨在识别液态基体与固态增强颗粒相互作用在接触边界处产生的现象。研究范围主要包括对所得复合材料微观结构的金相分析，采用光学显微镜（LOM）和扫描电子显微镜（SEM）以及能量色散X射线光谱（EDS）分析进行。指出了边界区域中金属相的存在，其含量和形态可以优化，以实现良好的功能特性，主要是复合材料的摩擦学特性。此外，所得结果证实了基于选定铁合金生产类似复合材料的可能性。
