The Effects of Laser Power on the Performance and Microstructure of Inconel 718 Formed by Selective Laser Melting

被引：0
作者：
Wang, Yalong [1 ,2 ,3 ]
Gao, Lei [3 ]
Yang, Liyuan [3 ]
Liu, Tao [1 ]
Miao, Jianyin [1 ,2 ]
Zang, Yong [3 ,4 ]
Zhang, Sheng [3 ]
机构：
[1] Beijing Inst Spacecraft Syst Engn, Beijing 100094, Peoples R China
[2] Natl Key Lab Spacecraft Thermal Control, Beijing 100094, Peoples R China
[3] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
[4] Univ Sci & Technol Beijing, Shunde Innovat Sch, Foshan 528300, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 21期
关键词：
selective laser melting (SLM); Inconel; 718; process parameters; microstructure; mechanical properties; MECHANICAL-PROPERTIES; TENSILE PROPERTY; EVOLUTION; TEXTURE; DENSITY; BEHAVIOR; STEEL; PARTS; POOL; SLM;
D O I：
10.3390/app14219686
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the effects of laser power on the microstructure and mechanical properties of Inconel 718 formed by SLM were systematically studied. The results show that with the increase in laser power from 285 W to 360 W, the increase in working temperature in the molten pool promoted the evaporation of gas and the vaporization of the low-melting-point alloy components, and the relative density gradually increased from 99.31% to 99.79%. In addition, with the increase in laser energy density, the microstructure gradually coarsened from columnar dendrites to cellular crystals. The nano-hardness of the material decreased with the increase in laser power. The nano-hardness of four groups of samples from 285 W to 360 W decreased form 3.43 GPa to 2.09 GPa, and the elastic modulus decreased form 205.72 GPa to 199.91 GPa.
引用
收藏
页数：14
相关论文
共 34 条
[1]   Texture control of 316L parts by modulation of the melt pool morphology in selective laser melting [J].
Andreau, Olivier ;
Koutiri, Imade ;
Peyre, Patrice ;
Penot, Jean-Daniel ;
Saintier, Nicolas ;
Pessard, Etienne ;
De Terris, Thibaut ;
Dupuy, Corinne ;
Baudin, Thierry .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2019, 264 :21-31
[2]  
Benoit MJ, 2021, INT J ADV MANUF TECH, DOI [10.1007/500170-021-06957-z, 10.1007/s00170-021-06957-z]
[3]   Selective laser melting of Inconel 718 under high laser power [J].
Borisov, E. V. ;
Popovich, V. A. ;
Popovich, A. A. ;
Sufiiarov, V. Sh. ;
Zhu, Jia-Ning ;
Starikov, K. A. .
MATERIALS TODAY-PROCEEDINGS, 2020, 30 :784-788
[4]   A novel approach to direct preparation of complete lath martensite microstructure in tool steel by selective laser melting [J].
Chen, Hongyu ;
Gu, Dongdong ;
Dai, Donghua ;
Xia, Mujian ;
Ma, Chenglong .
MATERIALS LETTERS, 2018, 227 :128-131
[5]   Microstructure, texture and tensile property as a function of scanning speed of Ti-47Al-2Cr-2Nb alloy fabricated by selective electron beam melting [J].
Chen, Yuyong ;
Yue, Hangyu ;
Wang, Xiaopeng .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 713 :195-205
[6]   Future research directions in the machining of Inconel 718 [J].
De Bartolomeis, Andrea ;
Newman, Stephen T. ;
Jawahir, I. S. ;
Biermann, Dirk ;
Shokrani, Alborz .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2021, 297
[7]   Additive manufacturing of metallic components - Process, structure and properties [J].
DebRoy, T. ;
Wei, H. L. ;
Zuback, J. S. ;
Mukherjee, T. ;
Elmer, J. W. ;
Milewski, J. O. ;
Beese, A. M. ;
Wilson-Heid, A. ;
De, A. ;
Zhang, W. .
PROGRESS IN MATERIALS SCIENCE, 2018, 92 :112-224
[8]   Effect of processing parameters on surface roughness, porosity and cracking of as-built IN738LC parts fabricated by laser powder bed fusion [J].
Guo, Chuan ;
Li, Sheng ;
Shi, Shi ;
Li, Xinggang ;
Hu, Xiaogang ;
Zhu, Qiang ;
Ward, R. Mark .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2020, 285
[9]   Selective laser melting additive manufacturing of pure tungsten: Role of volumetric energy density on densification, microstructure and mechanical properties [J].
Guo, Meng ;
Gu, Dongdong ;
Xi, Lixia ;
Zhang, Hongmei ;
Zhang, Jiayao ;
Yang, Jiankai ;
Wang, Rui .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2019, 84
[10]   A review of mechanical properties of additively manufactured Inconel 718 [J].
Hosseini, E. ;
Popovich, V. A. .
ADDITIVE MANUFACTURING, 2019, 30
1234