摘要
利用真空管式高温炉制得AlCrMnFeNiCux(x=0,0.5,1.0,1.5,2.0)多主元合金试样。结果表明,Al-CrMnFeNiCu1.0的显微组织最简单,组成相数远低于平衡相率所预期的相数。在AlCrMnFeNiCu0.5和AlCrMn-FeNiCu1.0的晶内分布着大量微小颗粒,有的颗粒尺寸甚至达到纳米级。Cu在合金组织中起着粘结剂的作用。AlCr-MnFeNiCu1.0合金的硬度最高,增加Cu含量不利于提高合金硬度。等物质量比的多主元合金的耐蚀性优于非等物质量比的多主元合金,AlCrMnFeNiCu的耐蚀性优于AlCrMnFeNi。在非等物质量比的合金中,x越大,合金的耐蚀性越差。
Multi-principal elements alloy AlCrMnFeNiCux（x=0,0.5,1.0,1.5, 2.0） is prepared by high-tern- perature vacuum tube furnace. The results show that AlCrMnFeNiCu1.0 has the simplest microstructure whose phases are far less than that in equilibrium. In AlCrMnFeNiCu0.5 and AlCrMnFeNiCu1.0, a lot of particles exist in the dendrites, some are even as fine as nanometer scale. Copper plays the role of adhesive. AlCrMnFeNiCu1.0 has the highest hardness. Increasing the content of copper doesn＇t increase the hardness of alloys. The equi-molar alloys are more corrosion resistant than the non-equi-molar ones. AlCrMnFeNiCu is more corrosion resistant than AlCrMnFeNi. Among the non-equi-molar alloys, the corrosion resistance decreases with x increasing.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2009年第20期45-47,共3页
Materials Reports
基金
南京工程学院科研基金项目(KXJ08052)
关键词
多主元合金
硬度
耐蚀性
multi-principal elements alloys, hardness, corrosion resistance
