Effect of ultrasonic vibration on microstructure and tensile properties of aluminum bronze alloy produced by wire arc additive manufacturing

被引：0
|
作者：
Chen W. [1 ]
Chen Y.-H. [1 ]
Wen T.-T. [1 ]
Min W.-F. [1 ]
Zhang T.-M. [1 ]
Feng X.-S. [2 ]
机构：
[1] Jiangxi Key Laboratory of Forming and Joining Technology for Aerospace Components, Nanchang Hangkong University, Nanchang
[2] Shanghai Aerospace Equipments Manufacturer Co., Ltd., Shanghai
来源：
Chen, Yu-Hua (ch.yu.hu@163.com) | 1600年 / Central South University of Technology卷 / 30期
关键词：
Aluminum bronze alloy; Interpass temperature; Microstructure; Tensile properties; Ultrasonic vibration; Wire arc additive manufacturing;
D O I：
10.11817/j.ysxb.1004.0609.2020-37672
中图分类号：
学科分类号：
摘要：
The effects of ultrasonic vibration on the microstructure and tensile properties of Cu-8Al-2Ni-2Mn-2Fe alloy produced by WAAM were studied under different interpass temperature. The results show that the control of different interpass temperature during WAAM process cannot inhibit the formation of epitaxial columnar dendrites. After the ultrasonic vibration is assisted, the cellular structure is obtained in the sample under an interpass temperature of 100℃. The κII (based on Fe3Al) and κIII (based on NiAl) phases are precipitated in the interdendritic regions whereas κIV (based on rich Fe) is uniformly nucleated in the α-Cu matrix. The tensile properties are anisotropic in the samples containing columnar dendrites. In samples under condition of ultrasonic vibration+interpass temperature of 100℃, the anisotropy is eliminated and the best tensile properties are obtained. The results indicate that WAAM fabricated the nickel aluminum bronze alloys can obtain high-performance assisted ultrasonic vibration under the right interpass temperature. © 2020, Science Press. All right reserved.
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页码：2280 / 2294
页数：14
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