Welding metallurgy is the study of how welding affects the physical, mechanical, and chemical properties of metals. The melting and resolidifying of alloys during welding can change the mechanical and corrosion properties of the metal. Some common welding defects are: Porosity: This defect occurs when gases become trapped in the weld metal, creating cavities. The trapped gases can create a bubble-filled weld that can eventually collapse. External welding defects: These defects are also known as surface or visual defects because they appear on the surface of the weld. External welding... Show more Welding metallurgy is the study of how welding affects the physical, mechanical, and chemical properties of metals. The melting and resolidifying of alloys during welding can change the mechanical and corrosion properties of the metal. Some common welding defects are: Porosity: This defect occurs when gases become trapped in the weld metal, creating cavities. The trapped gases can create a bubble-filled weld that can eventually collapse. External welding defects: These defects are also known as surface or visual defects because they appear on the surface of the weld. External welding defects can include cracks, overlaps, undercuts, porosity, and spatter. They can be detected by visual inspection or other methods like Magnetic Particle Inspection (MPI) or Dye Liquid Penetrants (DPI). Other welding defects include: Distortion Cracks Slag inclusion Lack of fusion Lack of penetration Under-cutting Under filling Show less
Welding metallurgy is the study of how welding affects the physical, mechanical, and chemical properties of metals. The melting and resolidifying of alloys during welding can change the mechanical and corrosion properties of the metal.
Some common welding defects are:
Porosity: This defect occurs when gases become trapped in the weld metal, creating cavities. The trapped gases can create a bubble-filled weld that can eventually collapse.
External welding defects: These defects are also known as surface or visual defects because they appear on the surface of the weld. External welding defects can include cracks, overlaps, undercuts, porosity, and spatter. They can be detected by visual inspection or other methods like Magnetic Particle Inspection (MPI) or Dye Liquid Penetrants (DPI).
Other welding defects include: Distortion Cracks Slag inclusion Lack of fusion Lack of penetration Under-cutting Under filling
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