Hydrogen embrittlement in titanium

Titanium easily absorbs hydrogen at high temperatures. When hydrogen is in the lattice, it forms brittle hydrides. The component then becomes hard and cracky and can suddenly break under load without deforming beforehand. So make sure the weld and shielding gas are clean and dry. Any moisture is a risk. If the material gets too hot, it will really suck up hydrogen. So keep heat input as low as possible and let the part cool slowly. After welding, you should check the weld for cracks.