Effect of welding speed on microstructures,mechanical properties and corrosion behavior of GTA-welded AISI 201 stainless steel sheets |
| |
Affiliation: | 1. Mechanical Engineering Department, SRM University, Chennai 603203, Tamil Nadu, India;2. Metallurgical and Material Engineering Department, Jadavpur University, Kolkata 700032, India |
| |
Abstract: | Three welding speeds designated as low (1.5 mm/s), medium (2.5 mm/s) and high (3.5 mm/s) were operated during the gas tungsten arc welding (GTAW) process and joints made were subjected to analysis of the microstructures, mechanical and corrosion properties of the joints. It was found that the joints made using the high welding speed exhibited smaller weld bead size, higher tensile strength and elongation, higher hardness and higher pitting corrosion potentials than those welded with medium and low welding speeds. The dendrite length and inter-dendritic spacing in the weld zone reduced when increasing the welding speed which was the main reason for the observable changes in the tensile, hardness and corrosion properties of the weld joints. |
| |
Keywords: | Welding speed AISI 201 stainless steel Corrosion behavior Mechanical properties Microstructure Gas tungsten arc welding |
本文献已被 ScienceDirect 等数据库收录! |
|