Effect of interfacial reactions on solid erosion of Al18B4O33whisker-reinforced AC4C Al alloy matrix composites
来源期刊：中国有色金属学报(英文版)2000年第3期
论文作者：涂江平 朱丽萍 孟亮 刘茂森 M. Matsumura
文章页码：332 - 336
Key words：interfacial reactions; solid erosion; metal matrix composites
Abstract: Solid erosion of as-cast and treated 19.5%(volume fraction) Al18B4O33whisker/AC4C Al composites was investigated at room temperature under steady-state conditions. The results indicated that the interfacial reaction between the whisker and matrix alloy have an effect on the erosion characteristics of the composites. The erosion resistance of the composites with a strongly bonded whisker-matrix interface and the higher whisker strength resulted from suitable reaction treatment can be improved at high impact angles and is the same as the as-cast composites at low angle. For the composites after excessive reaction treatment, the weak and brittle interface fractures easily at small strains, and the whiskers with relative low strength and low hardness at the specimen surface can not effectively resist the microcutting or microploughing action, thus the composites exhibit reduced erosion resistance.
