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The role of hydrogen in hot-salt stress corrosion cracking of titanium-aluminum alloys
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ondrejcin, R. S. |
| Copyright Year | 1971 |
| Description | Additional support is presented for the previously proposed role of hydrogen as an embrittling agent in hot-salt stress corrosion cracking of titanium-aluminum alloys. The main source of hydrogen formed during the reactions of titanium alloys with hot salt was identified as water associated with the salt. Hydrogen is produced by the reaction of an intermediate (hydrogen halide) with the alloy rather than from metal-water reactions. The fracture mode of precracked tensile specimens was ductile when the specimens were tested in air, and brittle when tests were made in high-pressure hydrogen. Stressed titanium-aluminum alloys also were cracked by bombardment with hydrogen ions produced in a proton accelerator. The approximate concentrations of the hydrogen ions in the alloys were calculated. |
| File Size | 821846 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720003781 |
| Archival Resource Key | ark:/13960/t8vb2wr12 |
| Language | English |
| Publisher Date | 1971-11-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic Metal Fatigue Titanium Alloys Stress Corrosion Hydrogen Embrittlement Aluminum Alloys Cracking Fracturing Salt Baths Fretting Corrosion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
