Details

Autor(en) / Beteiligte

• Sahu, Prakash Kumar
• Das, Jayashree
• Shi, Qingyu

Titel

Effect of Alloying Foil on the Friction Stir Weld Quality of Mg Alloy Joints

Ist Teil von

• Metallography, microstructure, and analysis, 2023-08, Vol.12 (4), p.672-682

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Magnesium is referred as "new age material" among various types of metallic materials. Its applications is more; however, there are a variety of obstacles that need to be overcome before the potential of engineering applications of Mg alloy. The most common method for welding magnesium alloys is fusion welding; however, friction stir welding (FSW) process for joining magnesium has the potential to alter fusion welding. The goal of this research work is to improve the quality of the welds in the joints made of magnesium alloys by using the FSW process and incorporating the right alloying elements. The results from the present study will undoubtedly bring advantages to practitioners and industrial users to weld Mg with a high success rate. The elements aluminium and zinc are used at weld line to get its advantage. After the experiments, the entire output is analysed and compared with alloying and non-alloying samples. Defect-free joint with good mechanical properties can be produced using the appropriate alloying element with the parameters that have been optimized. The ultimate tensile strength of without interlayer processed Mg was 58% of base metal and increased to 77 and 90% by an Al and Zn interlayer, respectively. Phase analysis is used to determine how an alloying element affects the metallurgical properties of a material. An increase in Al content in the solid solution, which specifically forms Al 12 Mg 17 and AlMg intermetallic compounds in AM20 Mg substrate, leads to less stress concentration and spread of cracks and maximum tensile strength.