Investigation on creep rupture behavior of SA387Gr91 steel welded joint

Facai Ren; Jinsha Xu; Jun Si; Xiaoying Tang

doi:10.1117/12.2592708

26 January 2021 Investigation on creep rupture behavior of SA387Gr91 steel welded joint

Facai Ren, Jinsha Xu, Jun Si, Xiaoying Tang

Proceedings Volume 11767, 2020 International Conference on Optoelectronic Materials and Devices; 117671V (2021) https://doi.org/10.1117/12.2592708
Event: 2020 International Conference on Optoelectronic Materials and Devices, 2020, Guangzhou, China

Abstract

The high temperature creep rupture behavior of SA387Gr91 martensitic heat-resistant steel welded joint was studied in this paper. Accelerated creep tests were carried out at 545°C and 565°C and stresses ranging from 175 to 225Mpa. The creep test curves of SA387Gr91 martensitic heat-resistant steel welded joint were obtained. Microstructures of SA387Gr91 martensitic heat-resistant steel welded joint after creep and fractographs were analyzed by scanning electron microscope and optical microscope. From the macroscopic fracture morphology of the specimen after creep test, it can be seen that the fracture position is in the heat affected zone. The values of reduction in area range from 82.12% to 87.57%.

Citation Download Citation

Facai Ren, Jinsha Xu, Jun Si, and Xiaoying Tang "Investigation on creep rupture behavior of SA387Gr91 steel welded joint", Proc. SPIE 11767, 2020 International Conference on Optoelectronic Materials and Devices, 117671V (26 January 2021); https://doi.org/10.1117/12.2592708

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