Abstract
The effect of the pre-aging heattreatment on microstructures, the hardness, tensile strength and creep properties of Inconel 740H ha been investigated. The carbides precipitated along the grain boundaries, and γ′-Ni3(Al,Ti) was suppressed during the pre-aging at 850°C-1010°C. As the pre-aging temperature increased, the hardness and tensile strength decreased. The material with 11% strain and normal heattreatment showed shorter creep life than the non-strained one, the pre-aging heattreatment before the cold working and final aging restored the creep properties.
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Rongcan, Z., Liying, T., Bohan, W., Shufang, H., Yan, G. (2014). Effect of Heattreatment on the Microstructure and Properties of Cold-worked Inconel 740H Boiler Tubes. In: Energy Materials 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48765-6_31
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DOI: https://doi.org/10.1007/978-3-319-48765-6_31
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48598-0
Online ISBN: 978-3-319-48765-6
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