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Effect of low-temperature ion nitriding on microhardness, roughness and residual stresses in the surface layer of Ti-6Al-4V

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Published under licence by IOP Publishing Ltd
, , Citation R D Agzamov et al 2019 J. Phys.: Conf. Ser. 1393 012066 DOI 10.1088/1742-6596/1393/1/012066

1742-6596/1393/1/012066

Abstract

The paper presents the results of two experimental series with low-temperature nitriding of VT6 titanium alloy in a non-self-maintained high-current arc discharge and in a glow discharge in different regimes. It is shown that microhardness and depth of a surface layer are significantly impacted by the temperature of treatment. The value of surface roughness of the samples is also affected, with a temperature rise from 450 to 600°C resulting in a surface roughness increase by 2–2.5 times. The temperature of nitriding affects the sign and magnitude of residual stresses in a surface layer.

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10.1088/1742-6596/1393/1/012066