Understanding the “blue spot‿ Sodium chloride hot salt stress-corrosion cracking in titanium-6246 during fatigue testing at low pressure
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- 作者：E.A. Saundersa ; ; T.P. Chapmanb ; A.R.M. Walkerc ; T.C. Lindleyb ; R.J. Chaterb ; V.A. Vorontsovb ; D. Ruggc ; D. Dyeb
- 关键词：Hot salt stress-corrosion cracking ; Titanium-6246 ; Fractography ; Pressure implication ; Novel technology application in failure analysis
- 刊名：Engineering Failure Analysis
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：61
- 期：Complete
- 页码：2-20
- 全文大小：5065 K
文摘
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Low life crack initiation from small optically blue spots at fatigue origins, Ti-6246
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Near-nil initiation life from validated striation counting and fracture mechanics
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Blue spots established as subtle examples of NaCl hot salt stress-corrosion cracking.
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Advocated by focussed EDX, FIB-SIMS and STEM-EDX on fracture surface FIB lifted foils.
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Lack of in-service implication under the high pressures of gas turbine environments