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
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DOI：
10.1557/jmr.2016.402
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发表时间：
2017-01
影响因子：
2.7
通讯作者：
Bang-ping Gu;Jin-tao Lai;Xiong Hu;Zi-di Jin;Hui Zhou;Zhen-sheng Yang;L. Pan
中科院分区：
文献类型：
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作者：
Bang-ping Gu;Jin-tao Lai;Xiong Hu;Zi-di Jin;Hui Zhou;Zhen-sheng Yang;L. Pan
引入高能振荡电流脉冲（ECP）技术来消除脉冲激光表面辐照处理的小型 AISI 1045 钢试样的残余应力。为了研究高能振荡ECP技术的有效性，进行了高能振荡ECP应力消除实验。此外，基于热活化理论开发了电塑性框架，揭示了高能振荡ECP应力消除的机制。结果表明，高能振荡ECP应力消除对于消除残余应力具有良好的效果。此外，高能振荡ECP应力消除的残余应力消除机制可归因于电软化效应和动应力效应。研究结果证实了高能振荡ECP对金属塑性的显着影响，并为理解高能振荡ECP应力消除的潜在机制提供了基础。
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.