| 317L/FH40复合钢板堆焊接头性能和组织研究 |
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| 引用本文： | 翟伟国, 任江毅, 邓光平. 317L/FH40复合钢板堆焊接头性能和组织研究[J]. 材料开发与应用, 2022, 37(3): 75-81,92. |
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| 作者姓名： | 翟伟国 任江毅 邓光平 |
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| 作者单位： | 中国船舶集团有限公司第七二五研究所, 河南 洛阳 471023 |
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| 摘 要： | 采用优选工艺参数对8 mm+48 mm厚的317L/FH40复合钢板进行了复层堆焊(补焊)焊接,然后进行焊后热处理,并对接头进行力学性能测试和微观组织分析。结果表明,317L/FH40复合板堆焊接头各项力学性能测试结果均达到相关标准要求,能够满足实际工程需要;金相组织分析结果显示,复层317L热影响区出现晶粒长大的现象,基层FH40钢热影响区组织产生变化;显微硬度测试结果显示接头各区域内硬度波动不大,不同区域间硬度呈现差异,局部出现升高和降低现象;晶间腐蚀试验结果显示复层堆焊焊缝无晶间腐蚀倾向。
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| 关 键 词： | 317L/FH40复合板 堆焊 力学性能 微观组织 |
| 收稿时间： | 2021-06-15 |
Study on Properties and Microstructure of Surfacing Welding Joint of 317L/FH40 Clad Steel Plate |
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| ZHAI Weiguo, REN Jiangyi, DENG Guangping. Study on Properties and Microstructure of Surfacing Welding Joint of 317L/FH40 Clad Steel Plate[J]. Development and Application of Materials, 2022, 37(3): 75-81,92. |
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| Authors: | ZHAI Weiguo REN Jiangyi DENG Guangping |
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| Affiliation: | Luoyang Ship Material Research Institute, Luoyang 471023, China |
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| Abstract: | The 317L/FH40 composite steel plate with thickness of 8 mm+48 mm is welded by cladding welding (repair welding) using the optimized process parameters, and then the post-welding heat treatment is carried out. The mechanical properties and microstructure of the joint are tested. The results show that the test results of mechanical properties of 317L/FH40 composite plate surfacing joints can meet the requirements of relevant standards and the needs of practical engineering. The microstructure analysis results show that the grain size grows in the heat affected zone of 317L cladding steel, and the microstructure changes in the heat affected zone of FH40 base steel. The results of microhardness test show that the hardness of the joint in each region has little fluctuation, but the hardness of different regions is different, increasing or decreasing in local regions. The results of intergranular corrosion test show that there is no intergranular corrosion tendency in the cladding welding seam. |
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| Keywords: | 317L FH40 clad steel plate surfacing welding mechanical properties microstructure |
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