Lindström Viktor, Liashenko Oleksii, Zweiacker Kai, Derevianko Serhii, Morozovych Vladyslav, Lyashenko Yurij, Leinenbach Christian
Empa-Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
Department of Physics, Cherkasy National University, 18000 Cherkasy, Ukraine.
Materials (Basel). 2020 Aug 7;13(16):3493. doi: 10.3390/ma13163493.
Laser powder bed fusion (L-PBF) of copper alloys with high copper content is difficult due to the high infrared reflectivity and thermal conductivity of these alloys. In this study a simple and scalable method for coating copper powder with tin and nickel is presented, and suggested as an alloying strategy for such alloys. The coated powders were processed in a commercial L-PBF-machine at various scanning speeds. The samples made from coated powders show a lower amount of porosity compared to samples made from in-situ alloyed powders of similar composition.
由于高铜含量铜合金具有高红外反射率和热导率，因此对其进行激光粉末床熔融（L-PBF）加工具有难度。在本研究中，提出了一种简单且可扩展的用锡和镍包覆铜粉的方法，并建议将其作为此类合金的一种合金化策略。将包覆后的粉末在商用L-PBF机器中以不同扫描速度进行加工。与由成分相似的原位合金化粉末制成的样品相比，由包覆粉末制成的样品孔隙率更低。
