Titanium Hydride Formation

Titanium hydrides form when titanium reacts with hydrogen in the weld, causing distortion and destruction. At high temperature (above 600 °C), a hydridic titanium structure forms that sharply reduces mechanical strength.

Titanium absorbs hydrogen quickly at high temperatures. If the hydrogen content gets too high, titanium hydrides form. They are hard and brittle, and the material just breaks away. This mainly happens when you work with damp filler materials or contaminated shielding gas. So you have to make sure everything is nice and dry and clean. The shielding gas must be set correctly and cover the weld zone well until the part has cooled down. If you follow this, you won't have any problems with titanium hydrides.

MetallurgieSchweißtechnik