Evolution of surface and subsurface properties of Zr-4 alloy under the combined effects of laser heat treatment and laser gas nitriding: Microscopic morphology, chemical composition, and mechanical behavior
文献类型：期刊论文
| 作者 | Xu, Puhong; Qian, Yongfeng; An, Hong; Guo, Haolin; Zhang ZY(张治愚); Jiang MQ(蒋敏强); Huang, Hu; Yan, Jiwang |
| 刊名 | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 339页码:22 |
| 关键词 | Zr-4 alloy Laser heat treatment Laser gas nitriding Hard phase Porosity Grain refinement Mechanical behavior |
| ISSN号 | 0924-0136 |
| DOI | 10.1016/j.jmatprotec.2025.118833 |
| 通讯作者 | Qian, Yongfeng(qianyf@jlu.edu.cn) ; Huang, Hu(huanghu@jlu.edu.cn) |
| 英文摘要 | Zr-4 alloy, extensively employed as cladding in nuclear reactor fuel rods, stands as the foremost line of defense for reactor safety. Given its susceptibility to defects such as micro-pores during casting and its long-term exposure to extreme conditions during practical service processes, enhancing the surface and subsurface properties of Zr-4 alloy is essential. Herein, a nanosecond pulsed laser is used to irradiate the Zr-4 alloy in a nitrogen environment to investigate the evolution of its surface and subsurface properties under the combined effects of laser heat treatment and laser gas nitriding. The experimental results reveal a remarkable augmentation in surface hardness and scratch resistance of the Zr-4 alloy after laser irradiation. Notably, the hardness of the laserirradiated surface obtained with a laser power of 23.0 W and a scanning speed of 150 mm/s reaches 19.10 GPa, which is more than 7 times higher than that of the untreated surface (2.37 GPa). These improvements are attributed to the synergistic effects of the introduction of hard ZrN phase, the reduction of subsurface porosity, and grain refinement. This study demonstrates a promising approach for significantly improving the mechanical properties of Zr-4 alloy, holding considerable practical significance for its applications in the nuclear energy industry and other relevant fields. |
| 分类号 | 二类/Q1 |
| WOS关键词 | WEAR-RESISTANCE ; MICROSTRUCTURE |
| 资助项目 | National Natural Science Foundation of China[52405480] ; National Key Research and Devel-opment Plan Project[2022YFB4600204] ; Postdoctoral Fellowship Program of CPSF[GZB20230256] ; China Postdoctoral Science Foundation[2024M751085] ; Sci-entific Research Projects of the Education Department of Jilin Province[JJKH20241256KJ] ; Fundamental Research Funds for the Central Universities[2023-JCXK-02] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001460920300001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Devel-opment Plan Project ; Postdoctoral Fellowship Program of CPSF ; China Postdoctoral Science Foundation ; Sci-entific Research Projects of the Education Department of Jilin Province ; Fundamental Research Funds for the Central Universities |
| 其他责任者 | Qian, Yongfeng ; Huang, Hu |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/100822]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Puhong,Qian, Yongfeng,An, Hong,et al. Evolution of surface and subsurface properties of Zr-4 alloy under the combined effects of laser heat treatment and laser gas nitriding: Microscopic morphology, chemical composition, and mechanical behavior[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2025,339:22. |
| APA | Xu, Puhong.,Qian, Yongfeng.,An, Hong.,Guo, Haolin.,张治愚.,...&Yan, Jiwang.(2025).Evolution of surface and subsurface properties of Zr-4 alloy under the combined effects of laser heat treatment and laser gas nitriding: Microscopic morphology, chemical composition, and mechanical behavior.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,339,22. |
| MLA | Xu, Puhong,et al."Evolution of surface and subsurface properties of Zr-4 alloy under the combined effects of laser heat treatment and laser gas nitriding: Microscopic morphology, chemical composition, and mechanical behavior".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 339(2025):22. |
入库方式： OAI收割
来源：力学研究所
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