http://www.popularmechanics.com/technology/news/a13919/new-steel-alloy-titanium/?1443670416676=1

Scientists Invent a New Steel as Strong as Titanium
South Korean researchers have solved a longstanding problem that stopped them from creating ultra-strong, lightweight aluminum-steel alloys......

The new product has many applications but the "news reports" of it make me laugh. Titanium is not stronger than steel, it is just much lighter. One article about the new alloy mentions that steel can't be used in aircraft because it is so heavy. Many, many aircraft have steel structures and all aircraft have some steel to make the parts that receive high stress like engine mounts.

The big advantages to using titanium in high performance military jets is the ability to withstand heat and resist fatigue. Aluminum has a very low melting point and the new allow probably won't take much heat either.

The process of spreading the crystals around to stop cracks is what made steel different from cast iron in the first place. The new material is probably using calendaring (rolling under pressure) to stretch the material and spread the crystals. This technique was used a thousand years ago to make steel much more flexible without losing strength in swords and was called "Damascus Steel".

The new alloy could make car bodies lighter as pure aluminum is too expensive for general production.

Apparently, creating the new material in large-enough quantities outside of a laboratory isn't yet achievable.

Wasn't this on Star Trek IV?

well,let's see what comes of it!