Abstract A novel method (reaction at narrow holes method, RANH method) to fabricate an intermetallic compound fiber / metal matrix composite is proposed. Narrow holes are drilled in the metal matrix A, and then metal fibers B are inserted into these holes. The assembly is heated to elevated temperatures to obtain molten metal B in the holes. Then the reaction between A and B should cause within the narrow holes. During the reaction, intermetallic compound of AmBn replaces the metal B keeping its fiber shape embedded in the metal matrix A. In this study, a Ni-aluminides fiber / Ni composite is fabricated by the novel method. Microstructure and mechanical property of these specimens were investigated. To evaluate the reaction during the RANH method, in-situ observation by laser scanning microscope and differential thermal analysis (DTA) were also carried out. From obtained results, effects of swaging treatment and heating condition on these microstructure and mechanical property were discussed.

中文翻译：

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窄孔反应法制备镍铝长纤维增强镍基复合材料

摘要 提出了一种制备金属间化合物纤维/金属基复合材料的新方法（窄孔反应法，RANH法）。在金属基体A上钻出窄孔，然后将金属纤维B插入这些孔中。将组件加热到高温以获得孔中的熔融金属 B。那么 A 和 B 之间的反应应该在窄孔内引起。在反应过程中，AmBn 的金属间化合物取代了金属 B，保持其嵌入金属基体 A 的纤维形状。在本研究中，Ni-铝化物纤维/Ni 复合材料是通过新方法制备的。研究了这些试样的显微组织和力学性能。为了评估 RANH 方法期间的反应，还进行了激光扫描显微镜和差热分析（​​DTA）的原位观察。根据所得结果，讨论了模锻处理和加热条件对这些组织和力学性能的影响。