| Summary: | . In a few decades, titanium has gone from being used almost exclusively in top-secret
aerospace projects to being used in the construction of custom car parts. Thanks to its incredibly
high strength-to-weight ratio and excellent corrosion resistance, titanium will be used even more
extensively in the future. There are various ways of joining titanium, one of the most used being
welding. Titanium generally has good weldability, but welding it poses problems in terms of the
danger of atmospheric contamination of the joint, as titanium, along with zirconium, beryllium,
hafnium, and several other metals, has a high affinity for atmospheric gases. In this paper, the
characteristics of titanium and its alloys will be presented, as well as the main processes for
joining them by welding and a brief review of some examples.
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