What is Weld Metal (Weld Metal Zone Definition) 👨‍🏭

Definition of Weld Metal (WM)

It is the metal in a fusion weld consisting of:
  • Base metal melted during welding.
  • Filler metal.

Weld Metal Zone

Weld Metal Zone (WMZ) is the portion of the weld area consisting of weld metal.

It undergoes fusion during welding.

There are also complementary terms:

  1. Fusion Zone: Region of the base metal that undergoes fusion during welding. It's a term with little use.
  2. Fusion Boundary: Region of the welded joint that surrounds the zone that undergoes fusion during welding. Generally used in some impact tests to define the location of removal of specimens.
  3. Fusion: Passage from solid to liquid state. This transformation takes place with increased heat or thermal energy. During melting, the metal goes through a heating process.
  4. Solidification: Passage from liquid to solid state. This transformation takes place with the loss of heat. During solidification, the metal undergoes a cooling process.
Please note that the HAZ is not part of the weld metal zone.

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Materials: What is Weld Metal (Weld Metal Zone Definition) 👨‍🏭
What is Weld Metal (Weld Metal Zone Definition) 👨‍🏭
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