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The effects of heat treatment and cooling rate on the microstructure and properties of T92 welded joints were studied. Under the same tempering holding time, the diffusion ability in the deposited metal increased as the tempering temperature increased. The phase-change temperature was lower than the A<italic>C</italic>1 points. In the 5-20s range of t8/5, the deposited metal toughness decreased as the cooling rate increased. When the t8/5 was equal to 70s, the toughness increased and the hardness decreased. The higher heat input induced coarse grain tendency. The lower welding heat input should be used in conjunction with the reasonable post-weld heat treatment.
</abstract>

The effects of heat treatment and cooling rate on the microstructure and properties of T92 welded joints were studied. Under the same tempering holding time, the diffusion ability in the deposited metal increased as the tempering temperature increased. The phase-change temperature was lower than the AC1 points. In the 5-20s range of t8/5, the deposited metal toughness decreased as the cooling rate increased. When the t8/5 was equal to 70s, the toughness increased and the hardness decreased. The higher heat input induced coarse grain tendency. The lower welding heat input should be used in conjunction with the reasonable post-weld heat treatment.

Effect of heat treatment and cooling rate on microstructure and properties of T92 welded joint

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The effects of heat treatment and cooling rate on the microstructure and properties of T92 welded joints were studied. Under the same tempering holding time,...

Effect of heat treatment and cooling rate on microstructure and properties of T92 welded joint

Publié en ligne: 04 août 2023

Pages: 124 - 139

Reçu: 11 août 2021

Accepté: 28 oct. 2022

DOI: https://doi.org/10.2478/msp-2023-0005

Mots clés
T92 welded joint, microstructure, heat treatment, cooling rate

© 2023 Chengyong Ma et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Effect of heat treatment and cooling rate on microstructure and properties of T92 welded joint

Publié en ligne: 04 août 2023

Pages: 124 - 139

Reçu: 11 août 2021

Accepté: 28 oct. 2022

DOI: https://doi.org/10.2478/msp-2023-0005

Mots clésT92 welded joint, microstructure, heat treatment, cooling rate

© 2023 Chengyong Ma et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
T92 welded joint, microstructure, heat treatment, cooling rate