ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. With static loading a gas-saturated layer 0.1 mm thick on titanium alloy VT68 in the heat treatd condition lowers the strength some what and sharply lowers the ductility, particularly local ductility. 2. Removal of the gas-saturated layer by etching to a depth of 0.1 mm (alloy VT6S) and to a depth of 0.05 mm (VT14) increases the durability three to four times in repeated static loading. 3. The kinetics of failure of alloy VT6S in repeated static loading indicates that the gas-saturated layer affects mainly the number of cycles before a fatigue crack occurs. A crack occurs in the first cycles in samples with an unetched gas-saturated layer. 4. In biaxial tension the presence of a gas-saturated layer on alloy VT14 has little effect on the strength but induces brittle fracture. In repeated static biaxial tension the durability of alloy VT14 with a gas-saturated layer is two orders lower than that of samples without a gas-saturated layer.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00660329
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