Laser-based additive manufacturing of a binary Ni-5 wt.%Nb alloy
Laser-based additive manufacturing of a binary Ni-5 wt.%Nb alloy
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DOI：
10.1016/j.jmapro.2020.12.059
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发表时间：
2021-02
影响因子：
6.2
通讯作者：
K. Atli;H. M. Boon;R. Seede;Bing Zhang;A. Elwany;R. Arróyave;I. Karaman
中科院分区：
文献类型：
--
作者：
K. Atli;H. M. Boon;R. Seede;Bing Zhang;A. Elwany;R. Arróyave;I. Karaman
在本研究中，Ni95Nb5(wt。采用选择性激光熔化（SLM）代替镍基高温合金增材制造合金样品。利用一个简单的分析模型来预测熔池尺寸，指导工艺参数的选择，并确定工艺参数空间中的无缺陷印刷性图，制备了接近无孔隙率的样品。ni95nb5力学测试样品在一系列工艺参数中显示出一致的屈服强度（~ 600mpa）和极限拉伸强度（~ 750mpa）。结果表明，通过合理选择工艺参数，可以在较宽的工艺参数空间内，在简单的合金化体系中生产出力学性能一致的零件。
In the present study, Ni95Nb5(wt. %) alloy samples are additively manufactured using selective laser melting (SLM) as a surrogate for Ni-based superalloys. Near porosity-free samples are fabricated utilizing a simple analytical model to predict melt pool dimensions, guide process parameter selection, and determine the defect-free printability map in the process parameter space. Ni95Nb5mechanical testing specimens displayed consistent yield strengths (∼600 MPa) and ultimate tensile strengths (∼750 MPa) across a range of process parameters. These results show that with the proper selection of process parameters, SLM can produce parts with consistent mechanical properties in a wide process parameter space in simple alloying systems.