超声振动对ZL101铝合金熔体凝固组织的影响
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摘要
利用超声振动方法对ZL101铝合金熔体进行处理,探讨了超声振动对ZL101铝合金熔体凝固组织的影响。研究结果表明:施加超声振动后的ZL101铝合金熔体780℃浇铸可以达到更好的除气效果,凝固组织形貌中的针孔分布情况明显好于未施加超声振动的。施加超声振动作用后,生成细小等轴晶的凝固组织。在同一温度下施加超声振动时,得到的晶粒平均尺寸显著降低。在施加超声振动后形成的合金凝固组织中存在众多弥散态Al_3Ti颗粒,此时的凝固组织相对于未超声振动出现了显著的细化。
The ZL101 aluminum alloy melt was treated by ultrasonic vibration method, the effect of ultrasonic vibration on the solidification structure of ZL101 aluminum alloy was investigated. The results show that better degassing result of ZL101 aluminum alloy melt pouring at 780 ℃ can be achieved after applying ultrasonic vibration. The distribution of pinhole in solidification morphology after applying ultrasonic vibration is much better than that without ultrasonic vibration. After the application of ultrasonic vibration, fine equiaxial crystals are formed. When the ultrasonic vibration is applied at the same temperature, the average grain size is significantly reduced. There are many dispersive Al_3Ti particles in the solidification structure of the alloy after ultrasonic vibration, and the solidification structure after ultrasonic vibration is finer than that without ultrasonic vibration.
The ZL101 aluminum alloy melt was treated by ultrasonic vibration method, the effect of ultrasonic vibration on the solidification structure of ZL101 aluminum alloy was investigated. The results show that better degassing result of ZL101 aluminum alloy melt pouring at 780 ℃ can be achieved after applying ultrasonic vibration. The distribution of pinhole in solidification morphology after applying ultrasonic vibration is much better than that without ultrasonic vibration. After the application of ultrasonic vibration, fine equiaxial crystals are formed. When the ultrasonic vibration is applied at the same temperature, the average grain size is significantly reduced. There are many dispersive Al_3Ti particles in the solidification structure of the alloy after ultrasonic vibration, and the solidification structure after ultrasonic vibration is finer than that without ultrasonic vibration.
引文
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[11]李新涛,赵建强,宁绍斌,等.功率超声振动对水平连铸Al-1%Si合金凝固的影响[J].稀有金属材料与工程,2006,35(S2):284-287.
[2]舒群,陈玉勇,徐丽娟.砂型铸造ZL101合金组织与力学性能的研究[J].特种铸造及有色合金,2005,25(2):75-78.
[3]王松涛,赵忠兴,田庆海,等.ZL101合金热处理工艺研究[J].热加工工艺,2005,34(5):39-40.
[4]贾泮江,陈邦峰.ZL101高强铸造铝合金的性能及应用[J].轻合金加工技术,2009,37(11):10-12.
[5]贾泮江,陈邦峰.ZL101合金高强优质熔体在大飞机上的应用[J].材料工程,2009(1):77-80.
[6]张海珍.ZL101高强度铝铜合金铸造性能及工艺技术研究[D].太原:中北大学,2010:1-6.
[7]贤福超,郭凡,肖文丰.ZL101合金元素偏析行为[J].铸造,2014,63(10):995-998.
[8]王哲.B元素对Ce变质ZL101合金组织和力学性能的影响研究[J].热加工工艺,2016,45(19):133-134.
[9]巫瑞智,孙宝德,疏达,等.铝除氢[J].材料科学与工艺,2006,14(2):218-221.
[10]陈玉莲,陈海军.超声波振动对ZL101组织和性能的影响[J].特种铸造及有色合金,2016,36(9):1006-1008.
[11]李新涛,赵建强,宁绍斌,等.功率超声振动对水平连铸Al-1%Si合金凝固的影响[J].稀有金属材料与工程,2006,35(S2):284-287.