Powder contamination during laser powder bed fusion: Inconel 718 in Ti6Al4V

被引：0
作者：
Groden, Cory [1 ]
Traxel, Kellen D. [1 ]
Bandyopadhyay, Amit [1 ]
机构：
[1] Washington State Univ, Sch Mech & Mat Engn, WM Keck Biomed Mat Res Lab, Pullman, WA 99164 USA
来源：
MATERIALS LETTERS | 2024年 / 365卷
基金：
美国国家科学基金会;
关键词：
Laser powder bed fusion; Additive manufacturing; Inconel; 718; Ti6Al4V; Defects; Mechanical properties;
D O I：
10.1016/j.matlet.2024.136465
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Powder contamination during laser powder bed fusion is a critical concern for the quality assurance of parts. Herein, we studied the effect of Inconel 718 contamination on the properties of printed Ti6Al4V, two commonly printed alloys. Contaminated parts exhibited visual and microstructural defects, and a mere 0.5 wt% IN718 contamination resulted in a 43 % reduction in plastic strain without noticing surface -level cracking. Further contamination of 2.5 wt% IN718 promotes surface cracking that renders the material unable to deform plastically, highlighting the importance of proper powder handling and the detrimental effects that even small amounts of contaminants can have on AM -produced components.
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页数：5
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