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Effect of initial hydrogen content of a titanium alloy on susceptibility to hot-salt stress-corrosionThe Ti-8Al-1Mo-1V alloy was tested in four conditions: mill annealed (70 ppM H), duplex annealed (70 ppM H), vacuum annealed to an intermediate (36 ppM) and a low (9 ppM H) hydrogen level. Material annealed at 650 C (duplex condition) exhibited resistance to hot-salt stress corrosion superior to that exhibited by material in the mill-annealed condition. Reduction of the alloy hydrogen content from 70 to as low as 9 ppM did not influence resistance to hot-salt stress corrosion embrittlement or cracking.
Document ID
19720004808
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Gray, H. R. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
November 1, 1971
Subject Category
Materials, Metallic
Report/Patent Number
E-6502
NASA-TM-X-2404
Accession Number
72N12457
Funding Number(s)
PROJECT: RTOP 134-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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