
1) Cobalt alloy
Found on
https://www.crosswordclues.com/clue/vitallium

Vitallium is a trademark for an alloy of 60% cobalt, 20% chromium, 5% molybdenum, and other substances. The alloy is used in dentistry and artificial joints, because of its resistance to corrosion. It is also used for components of turbochargers because of its thermal resistance. Vitallium was developed by Albert W. Merrick for the Austenal Labora...
Found on
http://en.wikipedia.org/wiki/Vitallium

<chemical> An alloy of 60% cobalt, 20% chromium, 5% molybdenum, and traces of other substances. It is used in dentures, certain surgical appliances, prostheses, implants, and instruments. ... Chemical name: Cobalt alloy, base, Co 56-68,Cr 25.00-29.00,Mo 5.00-6.00,Ni 1.75-3.75,Fe 0-3.00,Mn 0-1.00,Si 0-1.00,C 0.20-0.30,B 0-0.007 (UNS R30021) .....
Found on
http://www.encyclo.co.uk/local/20973

(vi-tal´e-әm) trademark for a cobalt-chromium alloy used for dentures and surgical appliances.
Found on
http://www.encyclo.co.uk/local/21001
No exact match found.