The interstitial elements like oxygen, nitrogen, carbon, and hydrogen are likely to be picked during titanium manufacturing operations and have large effects on its properties.

Above impurities can increase the strength and hardness as their level increases in Titanium and Titanium alloys. While the elongation and toughness decrease. 

For medical applications, embrittlement, reduced ductility, low fracture toughness & fatigue strength are some non-desired results due to presence of these impurities at the interstitial sites. 

Strict processing controls can greatly reduce the occurrence of interstitial defects.

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