Otwarty dostęp

Microstructure and mechanical properties of selective laser melted 18Ni300 steel

Yan Liang

Yan Liang

  • Dept. of Material Science and Engineering, School of Materials Science and Engineering, Jiang Su University of Science and Technologyzhenjiang, China
  • Dept. of Material Science and Engineering, School of Intelligent Manufacturing and Control Engineering, Shanghai Polytechnic UniversityShanghai, China
Wyszukaj tego autora
Sciendo|Google Scholar
Liang, Yan
, 
Luo Qing

Luo Qing

Dept. of General Dentistry, Shsnghai Xuhui District Dental CenterShanghai, China
Wyszukaj tego autora
Sciendo|Google Scholar
Qing, Luo
, 
He Yu

He Yu

Cancer Center, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
Wyszukaj tego autora
Sciendo|Google Scholar
Yu, He
, 
Zhao Huili

Zhao Huili

Nursing Department, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai, China
Wyszukaj tego autora
Sciendo|Google Scholar
Huili, Zhao
 oraz 
Wang Yuxin

Wang Yuxin

Dept. of Material Science and Engineering, School of Materials Science and Engineering, Jiang Su University of Science and Technologyzhenjiang, China
Wyszukaj tego autora
Sciendo|Google Scholar
Yuxin, Wang
  
31 gru 2022
Microstructure and mechanical properties of selective laser melted 18Ni300 steel's Cover Image
O artykule
Poprzedni artykuł
Następny artykuł
Zacytuj
Pobierz okładkę
Data publikacji: 31 gru 2022
Zakres stron: 64 - 71
Otrzymano: 20 wrz 2022
Przyjęty: 25 lis 2022
DOI: https://doi.org/10.2478/msp-2022-0031
Słowa kluczowe
© 2022 Yan Liang et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

SEM (A) and particle size distribution (B) of 18Ni300 powder
SEM (A) and particle size distribution (B) of 18Ni300 powder

Fig. 2

Illustration of the laser scanning strategy
Illustration of the laser scanning strategy

Fig. 3

Microstructure of the longitudinal section under different laser powers: (A): 270 W, (B) 300 W, (C) 320 W, and (D) 360 W
Microstructure of the longitudinal section under different laser powers: (A): 270 W, (B) 300 W, (C) 320 W, and (D) 360 W

Fig. 4

Effect of laser power on surface hardness
Effect of laser power on surface hardness

Fig. 5

Standard stretch piece
Standard stretch piece

Fig. 6

Stress–strain curves under different laser powers
Stress–strain curves under different laser powers

Fig. 7

Tensile fracture morphology of printed samples under different laser powers: (A) 270 W, (B) 300 W, (C) 320 W, and (D) 360 W
Tensile fracture morphology of printed samples under different laser powers: (A) 270 W, (B) 300 W, (C) 320 W, and (D) 360 W

Fig. 8

Density variation under different laser powers
Density variation under different laser powers

Fig. 9

SEM image (A) and local magnification (B) of the upper surface of the sample
SEM image (A) and local magnification (B) of the upper surface of the sample

Fig. 10

Microstructure analysis of EBSD on the upper surface of the sample: (A) IPF maps of 300 W, (A1) GB maps of 300 W; and (B) IPF maps of 360 W, (B1) GB maps of 360 W. IPF, inverse pole diagram
Microstructure analysis of EBSD on the upper surface of the sample: (A) IPF maps of 300 W, (A1) GB maps of 300 W; and (B) IPF maps of 360 W, (B1) GB maps of 360 W. IPF, inverse pole diagram

Performance comparison under different laser powers

Laser power (W) Rm (MPa) Rp0.2 (MPa) ɛPa 2
270 1,104 1,158 15.1
300 1,106 1,060 17.6
330 990 883 16.2
360 959 866 14.7

Comparison of the chemical composition of declared, powder, and as-fabricated 18Ni300

Element, wt.% Ni Mo Co Ti Cr C Si Mn
Powder 17.8 4.5 8.6 1 0.11 <0.01 <0.032 0.002

Formation process parameters of the 18Ni300 powder

Laser power (W) Scanning speed (mm/s) Path spacing (mm) Layer thickness (μm)
270 1,000 0.11 50
300 1,000 0.11 50
330 1,000 0.11 50
360 1,000 0.11 50
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Nauka o materiałach, Nauka o materiałach, inne, Nanomateriały, Funkcjonalne i inteligentne materiały, Charakterystyka i właściwości materiałów
Kanał RSS czasopisma