樊巧芳,林浩,张波.201不锈钢与2A11铝合金搅拌摩擦焊焊接接头特性研究[J].精密成形工程,2025,17(5):152-157.
FAN Qiaofang,LIN Hao,ZHANG Bo.Characteristics of Friction Stir Welded Joints of 201 Stainless Steel and 2A11 Aluminum Alloy[J].Journal of Netshape Forming Engineering,2025,17(5):152-157. |
| 201不锈钢与2A11铝合金搅拌摩擦焊焊接接头特性研究 |
| Characteristics of Friction Stir Welded Joints of 201 Stainless Steel and 2A11 Aluminum Alloy |
| 投稿时间：2024-07-17 |
| DOI：10.3969/j.issn.1674-6457.2025.05.017 |
| 中文关键词: 搅拌摩擦焊 异种合金 界面层 组织 拉伸性能 |
| 英文关键词: friction stir welding dissimilar alloys interface layer structure tensile properties |
| 基金项目:国家自然科学基金(51975277) |
|
| 摘要点击次数: 63 |
| 全文下载次数: 13 |
| 中文摘要: |
| 目的 研究钢-铝异种合金搅拌摩擦焊焊接接头的力学性能，探讨钢-铝异种合金接头组织特点。方法 在搅拌头偏移0.2 mm的前提下，对201不锈钢和2A11铝合金进行了对接焊，采用光学显微镜、XRD及EDS等手段对接头微观组织进行观察和分析，同时对焊接接头取样，测试其抗拉强度。结果 钢-铝焊接接头成形质量较好，接头处不存在气孔、裂纹等缺陷，金属相互渗透层深度约为2.5 mm。EDS和XRD分析结果显示，Fe及Al原子通过扩散在接头界面层主要形成FeAl和Fe3Al韧性相。拉伸试验结果表明，接头的平均抗拉强度为381 MPa，超过母材2A11铝合金的强度。结论 通过设置搅拌头偏移，可实现钢-铝异种合金的FSW焊接，且获得的接头力学性能较为优异。 |
| 英文摘要: |
| The work aims to study the mechanical properties of steel-aluminum dissimilar alloy joints by friction stir welding, and discuss the microstructure characteristics of steel-aluminum dissimilar alloy joints. 201 stainless steel and 2A11 aluminum alloy were butt-welded with the mixing head offset of 0.2 mm. The microstructure of the joint was observed and analyzed by optical microscope, XRD and EDS analysis. The tensile strength of the welded joint was measured by sampling. The results showed that the forming quality of steel-aluminum welded joint was good, there was no porosity, crack and other defects in the cladding layer, and the depth of metal mutual penetration layer was about 2.5 mm. EDS and XRD analysis showed that Fe and Al atoms were diffused, and the interface layer of the joint was mainly FeAl and Fe3Al ductile phases. The tensile test showed that the average tensile strength of the joint was 381 MPa, which exceeded the strength of the base material 2A11 aluminum alloy. In conclusion, the FSW welding of steel-aluminum dissimilar alloys can be realized by setting the offset of the mixing head, and the mechanical properties of the joint obtained are excellent. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
渝公网安备 50010702501719号