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Application of high-energy oscillating electric current pulse to relieve pulsed-laser surface irradiation induced residual stress in AISI 1045 steel

Application of high-energy oscillating electric current pulse to relieve pulsed-laser surface irradiation induced residual stress in AISI 1045 steel
Application of high-energy oscillating electric current pulse to relieve pulsed-laser surface irradiation induced residual stress in AISI 1045 steel
The high-energy oscillating electric current pulse (ECP) technology was introduced to relieve the residual stresses in the small AISI 1045 steel specimens treated by the pulsed-laser surface irradiation. The high-energy oscillating ECP stress relief experiments were conducted to study the effectiveness of the high-energy oscillating ECP technology. In addition, the electroplasticity framework was developed based on the thermal activation theory to reveal the mechanism of the high-energy oscillating ECP stress relief. The results show that the high-energy oscillating ECP stress relief has good effects on eliminating the residual stress. Furthermore, the residual stress relieving mechanism of the high-energy oscillating ECP stress relief can be attributed to the electric softening effect and the dynamic stress effect. The findings confirm that the significant effects of high-energy oscillating ECP on metal plasticity and provide a basis to understand the underlying mechanism of the high-energy oscillating ECP stress relief.
oscillating electric current pulse, electroplasticity, pulsed-laser, residual stress, electric softening effect, dynamic stress effect
473-481
Gu, Bang-ping
f2efeaa2-bdbb-4d5a-82e8-870ab6e8a2e9
Lai, Jin-tao
5ca8953e-73ec-45e2-ad5a-42e6aa6c46e3
Hu, Xiong
18624048-b039-4b6d-97b9-d37cce8c8a6a
Jin, Zi-di
e9613d09-1992-4bde-adee-b8f4f7349141
Zhou, Hui
66ce13ff-9d79-43d5-b35d-d4b809b0ebf1
Yang, Zhen-sheng
cad25a40-6748-498d-b027-b9b89cfb5d77
Pan, Long
3543e477-0703-4442-891d-b82133e60165
Gu, Bang-ping
f2efeaa2-bdbb-4d5a-82e8-870ab6e8a2e9
Lai, Jin-tao
5ca8953e-73ec-45e2-ad5a-42e6aa6c46e3
Hu, Xiong
18624048-b039-4b6d-97b9-d37cce8c8a6a
Jin, Zi-di
e9613d09-1992-4bde-adee-b8f4f7349141
Zhou, Hui
66ce13ff-9d79-43d5-b35d-d4b809b0ebf1
Yang, Zhen-sheng
cad25a40-6748-498d-b027-b9b89cfb5d77
Pan, Long
3543e477-0703-4442-891d-b82133e60165

Gu, Bang-ping, Lai, Jin-tao, Hu, Xiong, Jin, Zi-di, Zhou, Hui, Yang, Zhen-sheng and Pan, Long (2016) Application of high-energy oscillating electric current pulse to relieve pulsed-laser surface irradiation induced residual stress in AISI 1045 steel. Journal of Materials Research, 32 (2), 473-481. (doi:10.1557/jmr.2016.402).

Record type: Article

Abstract

The high-energy oscillating electric current pulse (ECP) technology was introduced to relieve the residual stresses in the small AISI 1045 steel specimens treated by the pulsed-laser surface irradiation. The high-energy oscillating ECP stress relief experiments were conducted to study the effectiveness of the high-energy oscillating ECP technology. In addition, the electroplasticity framework was developed based on the thermal activation theory to reveal the mechanism of the high-energy oscillating ECP stress relief. The results show that the high-energy oscillating ECP stress relief has good effects on eliminating the residual stress. Furthermore, the residual stress relieving mechanism of the high-energy oscillating ECP stress relief can be attributed to the electric softening effect and the dynamic stress effect. The findings confirm that the significant effects of high-energy oscillating ECP on metal plasticity and provide a basis to understand the underlying mechanism of the high-energy oscillating ECP stress relief.

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Application of high-energy oscillating electric current pulse to relieve pulsed-laser surface irradiation residual stress in AISI 1045 steel - Accepted Manuscript
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Accepted/In Press date: 4 October 2016
e-pub ahead of print date: 3 November 2016
Keywords: oscillating electric current pulse, electroplasticity, pulsed-laser, residual stress, electric softening effect, dynamic stress effect
Organisations: Education Hub

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Local EPrints ID: 408240
URI: http://eprints.soton.ac.uk/id/eprint/408240
PURE UUID: a17d5e7c-4f20-4168-9026-f88bb81c5079

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Date deposited: 18 May 2017 04:01
Last modified: 06 Oct 2020 17:22

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Contributors

Author: Bang-ping Gu
Author: Jin-tao Lai
Author: Xiong Hu
Author: Zi-di Jin
Author: Hui Zhou
Author: Zhen-sheng Yang
Author: Long Pan

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