Context:

• The Defence Research and Development Organisation (DRDO) has developed a high strength titanium alloy on industrial scale for applications in aerospace structural forgings.

Beta titanium alloys

• The high strength beta titanium alloys are unique due to their higher strength, ductility, fatigue, and fracture toughness – making them increasingly attractive for aircraft structural applications.
• Their relatively lower lifetime cost, owing to superior corrosion resistance in comparison to steels, was an effective trade-off to justify the use of this expensive material in India too.
• The high strength metastable beta titanium alloy, Ti-10V-2Fe-3Al, containing Vanadium, Iron and Aluminium, was developed by the Defence Metallurgical Research Laboratory (DMRL).
• These alloys are beneficial substitute for the relatively heavier traditional structural steels to achieve weight savings.
• The excellent forgeability of Ti-10V-2Fe-3Al alloy facilitated the manufacture of intricately configured components for aerospace applications with potential for significant weight savings, the statement added.

https://www.thehindu.com/news/national/drdo-develops-high-strength-titanium-alloy-for-aerospace-forgings/article35421043.ece?homepage=true

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