ISSN:
1573-9325
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Under high-temperature stress conditions in vacua of 5·10−4 and 5·10−5 mm Hg, the equicohesive temperature of the alloy VM-1A is approximately 1250 °C. 2. The reduction in the quantity of residual oxygen resulting from preliminary triple flushing out of the chamber with argon leads to a rise in the equicohesive temperature of the alloy to approximately 1450 °C. 3. As a result of protecting the surface of the specimens with a coating of molybdenum disilicide, the equicohesive temperature of the alloy in a vacuum of 5·10−4 mm Hg increases to more than 1500 °C. 4. The character of the failure of the alloy VM-1A is determined by the rate of growth of the microcracks formed at the surface grain boundaries, which are saturated with residual oxygen during high-temperature testing in vacuo.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01129402
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