Bibliographic Details
| Title: |
Effect of process parameters on mechanical properties of Inconel718 superalloy fabricated by directional energy deposition. |
| Authors: |
Jia, Tianhao1,2,3 (AUTHOR), Zou, Bin1,2,3 (AUTHOR) zb78@sdu.edu.cn, Liu, Wenbo1,2,3 (AUTHOR), Lei, Ting1,2,3 (AUTHOR), Ding, Hongjian1,2,3 (AUTHOR) |
| Superior Title: |
International Journal of Advanced Manufacturing Technology. Oct2023, Vol. 128 Issue 7/8, p2863-2883. 21p. 2 Color Photographs, 13 Black and White Photographs, 7 Diagrams, 3 Charts, 14 Graphs. |
| Subject Terms: |
*LASER deposition, *HEAT resistant alloys, *IMPACT strength, *TENSILE strength, *TEST methods, *HIGH temperatures |
| Abstract: |
Inconel718 maintains excellent mechanical properties at high temperatures of 700 ℃ and has a wide range of applications in aerospace, high-performance turbines, and other fields. However, the use of improper laser process parameters makes the Inconel718 obtained by the directional energy deposition method have poor performance and defects, and there are currently fewer studies on the regulation of the mechanical properties of the preparation of Inconel718 by directed energy deposition. In this paper, the influencing regulation of laser process parameters of laser power, scanning speed, hatch spacing, layer thickness, and forming direction on the microstructure and mechanical properties of Inconel718 prepared by directional energy deposition is investigated by single-factor test method. The mechanical properties of Inconel718 obtained by directional energy deposition and forge are compared. The results show that, among the five laser process parameters, the laser power and forming direction have significant effect on the mechanical properties of Inconel718 obtained by directional energy deposition, while the scanning speed, scanning spacing, and layer thickness have less influence on its mechanical properties. Compared with Inconel718 prepared by ordinary forge, the tensile strength of Inconel718 obtained by directed energy deposition is reduced by 7.64%, the hardness is increased by 23.55%, the impact strength is reduced by 17.6%, and the plasticity is reduced obviously. Good mechanical properties can be reached from the Inconel718 obtained by the directional energy deposition method. [ABSTRACT FROM AUTHOR] |
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