| Autor: |
Ахонін, С. В., Білоус, В. Ю., Селін, Р. В., Петриченко, І. К., Радченко, Л. М., Руханський, С. Б. |
| Předmět: |
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| Zdroj: |
Automatic Welding / Avtomatitcheskaia Svarka; 2022, Issue 5, p33-39, 7p |
| Abstrakt: |
Welding of titanium alloys, doped by silicon, requires application of additional technological operations, such as local heat treatment and preheating. In view of the fact that tungsten electrode argon-arc welding became widely applied in industry, the possibility of application of preheating for argon-arc welding of high-temperature pseudo-~ titanium alloy of Ti–5.6Al– 2.2Sn–3.5Zr–0.4Mo–1.0V–0.6Si system was studied. Joint preheating up to temperatures of 200 and 400 °C was used in the work. Temperature of preheating before welding in the range of 200…400 °С does not influence the final microstructure of the produced welded joints. AAW joints of high-temperature pseudo-~ Ti–5.6Al–2.2Sn–3.5Zr–0.4Mo–1.0V–0.6Si alloy, made with preheating up to 400 °С, have the highest ultimate tensile strength on the level of σt = 1160.1 MPa, impact toughness values of samples with a sharp notch are on the level of 8.3 J/cm2. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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