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Pulsed laser irradiation of the surface of AISI 1045 steel and the effects thereof: Residual stress, surface hardness and surface morphology

Pulsed laser irradiation of the surface of AISI 1045 steel and the effects thereof: Residual stress, surface hardness and surface morphology
Pulsed laser irradiation of the surface of AISI 1045 steel and the effects thereof: Residual stress, surface hardness and surface morphology

The effects produced by the Nd:YAG pulsed laser irradiation on the surface of the AISI 1045 steel were studied and the forming mechanism of the three-dimensional (3-D) surface morphology was proposed and discussed. Meanwhile, the detecting and controlling methods for the thermal damage were proposed. The results show that the transformation of the residual stress state and the surface hardness state can be attributed to the phase-transformation-induced microstructure change. The noticeable sink mark is produced at the Nd:YAG pulsed laser induced thermal damage area owing to the combined effect between the high energy pulsed laser and the surface tensile residual stress field. The findings confirm that the thermal damage can be detected by acquiring the surface residual stress, the surface hardness and the surface 3-D morphology; furthermore, the closed-loop control method and the open-loop control method can be applied to control the thermal damage.

Control, Detection, Laser, Residual stress, Surface hardness, Surface morphology, Thermal damage
0898-1507
1-18
Gu, B. P.
f2efeaa2-bdbb-4d5a-82e8-870ab6e8a2e9
Jin, Z. D.
78b3fb22-d725-4bb5-b044-750097cb1374
Hu, X.
781c1475-af98-4e57-96b4-ac9bc2c41792
Zhou, H.
66ce13ff-9d79-43d5-b35d-d4b809b0ebf1
Lai, J. T.
5ca8953e-73ec-45e2-ad5a-42e6aa6c46e3
Yang, Z. S.
bc7a8029-0440-4d83-8f87-e628099a176e
Wang, W.
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Pan, L.
5f1cd87a-2880-4ee2-ae55-8c9795a2bef7
Gu, B. P.
f2efeaa2-bdbb-4d5a-82e8-870ab6e8a2e9
Jin, Z. D.
78b3fb22-d725-4bb5-b044-750097cb1374
Hu, X.
781c1475-af98-4e57-96b4-ac9bc2c41792
Zhou, H.
66ce13ff-9d79-43d5-b35d-d4b809b0ebf1
Lai, J. T.
5ca8953e-73ec-45e2-ad5a-42e6aa6c46e3
Yang, Z. S.
bc7a8029-0440-4d83-8f87-e628099a176e
Wang, W.
6c00a03a-f46e-47a6-b777-050cc3e0d922
Pan, L.
5f1cd87a-2880-4ee2-ae55-8c9795a2bef7

Gu, B. P., Jin, Z. D., Hu, X., Zhou, H., Lai, J. T., Yang, Z. S., Wang, W. and Pan, L. (2018) Pulsed laser irradiation of the surface of AISI 1045 steel and the effects thereof: Residual stress, surface hardness and surface morphology. Lasers in Engineering, 40 (1-3), 1-18.

Record type: Article

Abstract

The effects produced by the Nd:YAG pulsed laser irradiation on the surface of the AISI 1045 steel were studied and the forming mechanism of the three-dimensional (3-D) surface morphology was proposed and discussed. Meanwhile, the detecting and controlling methods for the thermal damage were proposed. The results show that the transformation of the residual stress state and the surface hardness state can be attributed to the phase-transformation-induced microstructure change. The noticeable sink mark is produced at the Nd:YAG pulsed laser induced thermal damage area owing to the combined effect between the high energy pulsed laser and the surface tensile residual stress field. The findings confirm that the thermal damage can be detected by acquiring the surface residual stress, the surface hardness and the surface 3-D morphology; furthermore, the closed-loop control method and the open-loop control method can be applied to control the thermal damage.

Full text not available from this repository.

More information

Published date: 10 July 2018
Keywords: Control, Detection, Laser, Residual stress, Surface hardness, Surface morphology, Thermal damage

Identifiers

Local EPrints ID: 425333
URI: http://eprints.soton.ac.uk/id/eprint/425333
ISSN: 0898-1507
PURE UUID: 8aa39357-234a-4d48-a813-a3a72c55ccd0

Catalogue record

Date deposited: 12 Oct 2018 16:30
Last modified: 07 Oct 2020 00:42

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