Understanding the "blue spot": Sodium chloride hot salt stress-corrosion cracking in titanium-6246 during fatigue testing at low pressure

During hot component fatigue tests there have been two cases of low life crack initiation of gas turbine rotating parts manufactured from the Titanium alloy Ti-6246. Both exhibited a small (~0.1mm) elliptical 'blue spot' at the origin. Through validated striation count work and fracture me...

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Veröffentlicht in:	Engineering failure analysis 2016-03, Vol.61, p.2-20
Hauptverfasser:	Saunders, E A, Chapman, T P, Walker, ARM, Lindley, T C, Chater, R J, Vorontsov, V A, Rugg, D, Dye, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Crack initiation Fatigue failure Fracture mechanics Laboratories Sodium chloride Spots Stress corrosion cracking Titanium base alloys
Online-Zugang:	Volltext
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