New shape-shifting Alloy discovered

Crystals seen on the fine scale: River-like patterns form and change as the metal morphs

Scientists have found a new alloy that can change its shape inumerous times without any fatigue or strain development. This new material called a "martensite" has two different arrangements of crystal structure and the alloy can seamlessly shift between the two. This shift is caused by variation of temperature and as the shifts between one structure to another with temperature and return to original structure if temperature is returned to its initial value, it is also know an shape memory alloys.
The current shape shifting materials are made of Nickel and Titanium. These have been employed in various fields including the solar panels of Hubble telescope, but the problem with these are that  after repeated cycle of temperature variations it starts creating strain internally and degrades. This leads to its eventual failure, but the new alloy composed of zinc, copper and gold can go thousands of cycles with virtually no stress and can go on for a very long time.
Thus, this has open new scopes for these active materials.

Read More at :-http://www.bbc.co.uk/news/science-environment-24400101
Read the Article in Journal Nature:- http://www.nature.com/nature/journal/v502/n7469/full/nature12532.html