Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel

Nan Li; Qiang Wang; Wenjuan Niu; Liucheng Zhou; Peng Han; Yu Han; Jiaxu Li; Pu Song; Ning Hu; Nan Guo; Shenao Li; Xinlei Pan

doi:10.1016/j.jmrt.2023.04.270

Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel

Nan Li
, Qiang Wang
, Wenjuan Niu
, Liucheng Zhou
, Peng Han
, Yu Han
, Jiaxu Li
, Pu Song
, Ning Hu
, Nan Guo
, Shenao Li
, Xinlei Pan

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

As an advanced surface-strengthening technology, laser shock peening (LSP) is suitable for strengthening high-energy beam additive manufacturing components by improving the uneven temperature distribution and mechanical anisotropy problems. The present study investigated the influence of multiple LSP impacts on the microstructure evolution and wear performance of wire-based laser directed energy deposition (LDED) 17-4 PH stainless steel. Results showed that with the increase of LSP impacts, the average grain size of the wire-based LDED layer decreases and the dislocation density increases. Meanwhile, the residual stress was completely converted from tensile state to compressive state, and reaches the maximum value of 424 ± 15 MPa. In addition, the significant improvement of microhardness and wear resistance after 3 LSP impacts is attributed to the combined effects of grain refinement and dislocation strengthening.

Original language	English
Pages (from-to)	3222-3227
Number of pages	6
Journal	Journal of Materials Research and Technology
Volume	25
DOIs	https://doi.org/10.1016/j.jmrt.2023.04.270
State	Published - 1 Jul 2023
Externally published	Yes

Keywords

Laser directed energy deposition
Laser shock peening
Microhardness
Residual stress
Wear

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10.1016/j.jmrt.2023.04.270

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Li, N., Wang, Q., Niu, W., Zhou, L., Han, P., Han, Y., Li, J., Song, P., Hu, N., Guo, N., Li, S., & Pan, X. (2023). Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel. Journal of Materials Research and Technology, 25, 3222-3227. https://doi.org/10.1016/j.jmrt.2023.04.270

@article{85fc9ce7f9434d77ad8e83ca94ee1383,

title = "Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel",

abstract = "As an advanced surface-strengthening technology, laser shock peening (LSP) is suitable for strengthening high-energy beam additive manufacturing components by improving the uneven temperature distribution and mechanical anisotropy problems. The present study investigated the influence of multiple LSP impacts on the microstructure evolution and wear performance of wire-based laser directed energy deposition (LDED) 17-4 PH stainless steel. Results showed that with the increase of LSP impacts, the average grain size of the wire-based LDED layer decreases and the dislocation density increases. Meanwhile, the residual stress was completely converted from tensile state to compressive state, and reaches the maximum value of 424 ± 15 MPa. In addition, the significant improvement of microhardness and wear resistance after 3 LSP impacts is attributed to the combined effects of grain refinement and dislocation strengthening.",

keywords = "Laser directed energy deposition, Laser shock peening, Microhardness, Residual stress, Wear",

author = "Nan Li and Qiang Wang and Wenjuan Niu and Liucheng Zhou and Peng Han and Yu Han and Jiaxu Li and Pu Song and Ning Hu and Nan Guo and Shenao Li and Xinlei Pan",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors",

year = "2023",

month = jul,

day = "1",

doi = "10.1016/j.jmrt.2023.04.270",

language = "英语",

volume = "25",

pages = "3222--3227",

journal = "Journal of Materials Research and Technology",

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Li, N, Wang, Q, Niu, W, Zhou, L, Han, P, Han, Y, Li, J, Song, P, Hu, N, Guo, N, Li, S & Pan, X 2023, 'Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel', Journal of Materials Research and Technology, vol. 25, pp. 3222-3227. https://doi.org/10.1016/j.jmrt.2023.04.270

TY - JOUR

T1 - Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel

AU - Li, Nan

AU - Wang, Qiang

AU - Niu, Wenjuan

AU - Zhou, Liucheng

AU - Han, Peng

AU - Han, Yu

AU - Li, Jiaxu

AU - Song, Pu

AU - Hu, Ning

AU - Guo, Nan

AU - Li, Shenao

AU - Pan, Xinlei

PY - 2023/7/1

Y1 - 2023/7/1

N2 - As an advanced surface-strengthening technology, laser shock peening (LSP) is suitable for strengthening high-energy beam additive manufacturing components by improving the uneven temperature distribution and mechanical anisotropy problems. The present study investigated the influence of multiple LSP impacts on the microstructure evolution and wear performance of wire-based laser directed energy deposition (LDED) 17-4 PH stainless steel. Results showed that with the increase of LSP impacts, the average grain size of the wire-based LDED layer decreases and the dislocation density increases. Meanwhile, the residual stress was completely converted from tensile state to compressive state, and reaches the maximum value of 424 ± 15 MPa. In addition, the significant improvement of microhardness and wear resistance after 3 LSP impacts is attributed to the combined effects of grain refinement and dislocation strengthening.

AB - As an advanced surface-strengthening technology, laser shock peening (LSP) is suitable for strengthening high-energy beam additive manufacturing components by improving the uneven temperature distribution and mechanical anisotropy problems. The present study investigated the influence of multiple LSP impacts on the microstructure evolution and wear performance of wire-based laser directed energy deposition (LDED) 17-4 PH stainless steel. Results showed that with the increase of LSP impacts, the average grain size of the wire-based LDED layer decreases and the dislocation density increases. Meanwhile, the residual stress was completely converted from tensile state to compressive state, and reaches the maximum value of 424 ± 15 MPa. In addition, the significant improvement of microhardness and wear resistance after 3 LSP impacts is attributed to the combined effects of grain refinement and dislocation strengthening.

KW - Laser directed energy deposition

KW - Laser shock peening

KW - Microhardness

KW - Residual stress

KW - Wear

UR - https://www.scopus.com/pages/publications/85163514628

U2 - 10.1016/j.jmrt.2023.04.270

DO - 10.1016/j.jmrt.2023.04.270

M3 - 文章

AN - SCOPUS:85163514628

SN - 2238-7854

VL - 25

SP - 3222

EP - 3227

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

ER -

Effects of multiple laser shock peening impacts on microstructure and wear performance of wire-based laser directed energy deposition 17-4PH stainless steel

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Keywords

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