6066/SiC喷射共沉复合材料的半固态加工

来源期刊：中国有色金属学报1998年第4期

论文作者：康智涛 张豪 陈振华

文章页码：595 - 599

关键词：喷射共沉； 半固态加工； 复合材料； 搅溶性

Key words：spray co-deposition; semi-solid process; composites; thixotropy

摘    要：研究了多层喷射共沉6066铝合金/SiC复合材料的半固态加工。半固态水淬后的金相组织表明，部分重熔后的喷射沉积组织具有适于半固态加工的搅溶性。不同温度的半固态模锻表明，材料能在较低压力下一步成形； SiC颗粒在加工后仍分布均匀， 与基体结合良好； 材料仍保持了较好的力学性能， T6态性能可达σ_b=385 MPa，σ_0.2=342 MPa，δ=4.3%。

Abstract: Semi-solid processing of multi-layer spray co-deposited 6066Al/SiC_p composites was studied. By analyzing the water quenched microstructure, it was shown that the partly remelted spray-formed structure got thixotropy suitable for semi-solid processing. Semi-solid die-forging at different temperatures was conducted, the results showed that the material could be shaped under low pressure, SiC particles still uniformly distributed after processing and combined well with matrix alloy; the material maintained reasonable good mechanical properties.