一、前言随着航天和航空工业的高速发展,对铝合金提出了新的、更高的要求。宇航飞行器、导弹、火箭、喷气机发动机、运输机械、工业机械等,急需具有特殊物理性能(高比强度、高比弹性模量及比重小)的耐热材料,现有铝合金都满足不了这种要求,而纤维增强铝基复合材料却具有这种性能。碳纤维抗拉强度为150—600公斤/毫米~2,并富有弹性,把这种纤维加入金属中形成的纤维增强金属强度极高。如果基体使用 I. INTRODUCTION With the rapid development of aerospace and aviation industry, new and higher requirements for aluminum alloy are put forward. Aerospace vehicles, missiles, rockets, jet engines, transport machinery, industrial machinery, etc., the urgent need for a special physical properties (high specific strength, high elastic modulus and small proportion) of the heat-resistant materials, the existing aluminum can not meet this However, fiber reinforced aluminum matrix composites have such properties. Tensile strength of carbon fiber 150-600 kg / mm ~ 2, and flexible, the fiber added to the metal fibers formed by the enhanced metal strength. If the substrate is used