摘要
为了提高焊丝焊后接头力学性能,研究了Mg质量分数对ER5356焊丝焊后接头组织性能的影响,优化了焊丝成分。焊接母材选用7A52铝合金板材,采用钨极惰性气体保护焊进行板材对接焊,观察焊接接头的显微组织,进行力学性能实验。研究表明,焊缝区是上述焊接接头最为薄弱的环节。随着焊丝中Mg质量分数的增加,焊接接头的强度不断增强,延伸率随之下降。
The effects of Mg content on microstructures and properties of welding joints welded with ER5356 aluminum welding wires were studied. The composition of welding wires were optimized to improve the microstructure and properties of the welded joints. The 7A52 aluminum alloy sheets used as base metal were welded by tungsten inert gas welding. The microstructures of welded joints were observed and the mechanical properties were tested. The result shows that the weld zone is the weakest of welded joints. With the increase of Mg content,the strength of the welded joints increase and the elongation decreases.
出处
《辽宁科技大学学报》
CAS
2017年第2期112-115,137,共5页
Journal of University of Science and Technology Liaoning
基金
中央高校基本科研业务费项目(N130709001)
作者简介
徐振（1987-）,男,辽宁鞍山人,讲师.
