Abstract

The influence of the isothermal annealing conditions in air (at 560 and 625°C for 1000 h) on the deformation behavior of a high-temperature VT18U titanium alloy under tension is studied. The plasticity of the alloy at room temperature decreases from 14 to ≈5% after annealing at the investigated temperatures. The thickness of the gas-saturated layer is 17 and 42 μm after annealing at 560 and 625°C, respectively. The main factor determining the plasticity of the alloy in the oxidized state is the oxygen content gradient in the gas-saturated layer.

中文翻译：

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VT18U钛合金在氧化态下的变形行为

摘要

研究了空气中的等温退火条件（在560和625°C下持续1000 h）对高温VT18U钛合金在张力下的变形行为的影响。在研究温度下退火后，室温下合金的可塑性从14降低到≈5％。在560和625℃下退火之后，气体饱和层的厚度分别为17和42μm。决定合金在氧化态下可塑性的主要因素是气体饱和层中的氧含量梯度。