What is true about tungsten contamination in the GTAW process?

Tungsten contamination in the GTAW process can significantly compromise the integrity of the weld. When tungsten particles mix with the weld pool, they can lead to a weak bond and reduced mechanical properties of the finished weld. For instance, the presence of tungsten in the weld can cause brittle areas or defects that may compromise the overall strength and performance of the joint.

It is essential to maintain a clean environment and avoid tungsten contamination to ensure that the weld maintains its intended strength and durability. This means that if contamination does occur, it must be cleaned or removed before proceeding with the welding process to prevent these adverse effects. Thus, ensuring that the tungsten is free from contamination is vital for achieving optimal weld quality.

The other options suggest benefits or neutrality related to tungsten contamination that do not reflect the actual negative impact it has on weld integrity.