Characterization of fiber-reinforced metal matrix composites fabricated by low-pressure infiltration process
Characterization of fiber-reinforced metal matrix composites fabricated by low-pressure infiltration process
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DOI：
10.1016/j.msea.2005.07.065
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发表时间：
2005-12
期刊：
影响因子：
6.4
通讯作者：
M. Mizumoto;T. Ohgai;A. Kagawa
中科院分区：
文献类型：
--
作者：
M. Mizumoto;T. Ohgai;A. Kagawa
研究了采用 LPI 工艺制造的随机取向纤维增强金属基复合材料（FRMMC）的物理和机械性能。以SiC颗粒和SiC纤维为增强体，以Al-4mass%Cu合金、Al-7Simass%合金和AZ91合金为基体。制备由铝颗粒、SiC颗粒和SiC纤维组成的混合物作为预制件，以控制FRMMC中SiC纤维的分布。通过用低压 Ar 气体挤压熔体表面，将熔融基体合金渗透到预成型件中，制造随机取向的 FRMMC 样品。 FRMMC 试样在热循环测试中表现出高性能以及优异的耐磨性。 FRMMC 样品的维氏硬度在不同截面上几乎恒定，并且物理和机械性能是各向同性的。
The physical and mechanical properties of randomly oriented fiber-reinforced metal matrix composites (FRMMCs) fabricated by LPI process were examined. SiC particles and SiC fibers were used as reinforcement, while Al–4mass% Cu alloy, Al–7 Simass% alloy and AZ91 alloy were used as matrix. A mixture consisting of aluminum particles, SiC particles and SiC fibers was prepared as a preform to control the distribution of SiC fibers in FRMMC. Randomly oriented FRMMC specimens were fabricated by infiltrating the molten matrix alloy into the preform by pressing the melt surface with a low pressure of Ar gas. FRMMC specimens showed a high performance in thermal cycling test as well as an excellent wear resistance. The Vickers hardness of FRMMC specimens was almost constant on the different sections and the physical and mechanical properties were found to be isotropic.