Volume 8, Issue 2 (Journal OF Welding Science and Technology 2023)
JWSTI 2023, 8(2): 97-112 |
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1- Department of Mechanical Engineering, Shiraz Branch - Islamic Azad University - Shiraz, Iran
2- Department of Mechanical Engineering, Shiraz Bahonar Engineering College, Technical and Vocational University (TVU), Shiraz, Iran
3- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran , heidari.shahin1@gmail.com
2- Department of Mechanical Engineering, Shiraz Bahonar Engineering College, Technical and Vocational University (TVU), Shiraz, Iran
3- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran , heidari.shahin1@gmail.com
Abstract: (1064 Views)
In this study, the mechanical and tribological properties of 4 different types of welding filler metals were examined on a 1.6959 steel (DIN35NiCrMoV12-5) by the Gas Tungsten Arc Welding process. The fillers used in this study include ER70S-6, ER80S-G, ER80S-Ni1, ER80S-B2. The main reasons for choosing these fillers in this study are their availability and close chemical composition to the base metal. To evaluate the weld and quality of weld joints, tensile, impact, hardness and abrasion tests performed on the samples and related microstructures was investigated by optical microscope. The results indicated that the presence of molybdenum and chromium alloying elements in ER80S-B2 filler and related microstructure at HAZ has led to an increase in weld strength up to 38 percent. The best and worst wear resistance obtained from the filler ER 80S-Ni1 and ER 70S-6 respectively. The best weld quality and mechanical properties were acquired in welding using ER 80S-B2 welding filler metal.
Keywords: Steel Weldability, Mechanical Properties, Tribology, Filler Metal, Gas Tungsten Arc Welding
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