| Controlling the Residual Stress in Metallic Solids by Pulsed Electric Current | |
| Zhang Xinfang1; Xiang Siqi1; Yi Kun1; Guo Jingdong2 | |
| Corresponding Author | Zhang Xinfang(xfzhang@ustb.edu.cn) ; Guo Jingdong(jdguo@imr.ac.cn) |
| 2022-05-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 58Issue:5Pages:581-598 |
| Abstract | The generation of residual stress is unavoidable during the preparation and processing of metallic materials. This residual stress reduces the stability of material preparation and processing, particularly the surface tensile stress, which will reduce the fatigue and corrosion resistances of the material. Therefore, the effective regulation of the residual stress is generally required. However, traditional residual stress control methods, such as heat treatment, exhibits low efficiency because they are limited by material size and type. It is crucial to develop a new method for regulating residual stress that is green, low energy consumption, stable, effective, and applicable to various metallic materials. Pulsed electric current processing is a new material processing technology. It has been widely used in the elimination and control of residual stress in materials in the recent years. Herein, the generation, disadvantages, and traditional control methods of residual stress are briefly reviewed; the characteristics of residual stress under various pulsed electric current treatment modes are reviewed in detail; and the mechanism of residual stress under pulsed electric current is briefly discussed. Based on the obtained results, under the action of high energy pulsed electric current, the residual stress inside and on the surface of the metallic materials can be effectively eliminated in a very short period (approximately 1 s) and the maximum elimination rate can reach 100%. The higher the current density, the higher is the rate of residual stress elimination. Furthermore, the greater the initial residual stress in the material, it is simpler to eliminate residual stress. The experimental results of low energy continuous pulsed electric current treatment show that there are numerous types of response modes, such as increasing, decreasing, and unchanged residual stress, which are associated with the type of material and the pulse parameters. To control the residual stress in the material, the treatment method for coupling pulsed electric current and external stress is effective. Coupling low energy continuous pulsed electric current during material processing can effectively introduce residual compressive stress on the surface of the material and improve the fatigue and corrosion resistances of the material. The electrodynamic treatment technology, which produces hammering when the material is subjected to pulsed electric current, can transform the tensile stress on the material surface into compressive stress to improve the performance of the material. This effectively breaks through the high energy requirement of eliminating residual stress and allowing the workpiece directly in the setting regional area. Residual stress in pulsed electric current processing is removed via the following mechanism: Joule heating and pulsed electric current effects caused by pulsed electric current promote dislocation movement and reduce the flow stress of the material; therefore, the material can undergo plastic deformation at a low stress level, for which the pulsed electric current effect is crucial. The combined action of stress changes caused by pulsed electric current (thermal stress, pinch effect, magnetostrictive effect, and instantaneous thermal expansion stress), external stress (deformation and impact), and residual stress constitute the driving force to promote plastic deformation. |
| Keyword | high energy pulsed electric current low energy continuous pulsed electric current residual stress electroplasticity multi-field coupling |
| Funding Organization | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities |
| DOI | 10.11900/0412.1961.2021.00367 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[U21B2082] ; National Natural Science Foundation of China[51874023] ; National Natural Science Foundation of China[U1860206] ; National Key Research and Development Program of China[2019YFC1908403] ; Fundamental Research Funds for the Central Universities[FRF-TP-20-04B] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000787207700001 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/172606 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang Xinfang; Guo Jingdong |
| Affiliation | 1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang Xinfang,Xiang Siqi,Yi Kun,et al. Controlling the Residual Stress in Metallic Solids by Pulsed Electric Current[J]. ACTA METALLURGICA SINICA,2022,58(5):581-598. |
| APA | Zhang Xinfang,Xiang Siqi,Yi Kun,&Guo Jingdong.(2022).Controlling the Residual Stress in Metallic Solids by Pulsed Electric Current.ACTA METALLURGICA SINICA,58(5),581-598. |
| MLA | Zhang Xinfang,et al."Controlling the Residual Stress in Metallic Solids by Pulsed Electric Current".ACTA METALLURGICA SINICA 58.5(2022):581-598. |
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