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Effect of scanning speed on microstructure and properties of 30Cr3Ni2 alloy steel prepared by direct laser deposition
Author(s): Xueting Chen; Suiyuan Chen; Yining Zhu; Tong Cui; Jing Liang; Changsheng Liu; Mei Wang
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Paper Abstract

The 30Cr3Ni2 alloy steel samples were prepared by direct laser deposition (DLD) technology with different scanning speeds. The microstructure and mechanical properties of the samples were studied by metallographic microscope, scanning electron microscopy, energy dispersive spectroscopy, microhardness tester and electronic universal material tester. The results show that when the laser power was 2500W and the scanning speed was 10mm/s, the fabricated sample mainly consisted of granular bainite(GB) with (Fe,Cr)7C3 carbide. The average hardness value was 341HV, the tensile strength was 875Mpa, the yield strength was 867Mpa, and the elongation was 3.9%. This study provides the basis for the further development of alloy steel produced by DLD.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11333, AOPC 2019: Advanced Laser Materials and Laser Technology, 113331F (18 December 2019); doi: 10.1117/12.2548056
Show Author Affiliations
Xueting Chen, Northeastern Univ. (China)
Suiyuan Chen, Northeastern Univ. (China)
Yining Zhu, Northeastern Univ. (China)
Tong Cui, Northeastern Univ. (China)
Jing Liang, Northeastern Univ. (China)
Changsheng Liu, Northeastern Univ. (China)
Mei Wang, Shenyang Dalu Laser Technology Co., Ltd. (China)


Published in SPIE Proceedings Vol. 11333:
AOPC 2019: Advanced Laser Materials and Laser Technology
Pu Zhou; Jian Zhang; Wenxue Li; Shibin Jiang; Takunori Taira, Editor(s)

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