@inproceedings{171fd80aa6c741e5b8fb9d3490ce35fa,
title = "EFFECT OF TEMPERATURE ON FRACTURE TOUGHNESS OF INCONEL 617B SUPERALLOY WELDED JOINT",
abstract = "In the present study, the Inconel 617B superalloy welded trial rotor was fabricated by narrow gap tungsten inert gas (NG-TIG) welding and the effects of temperature on fracture toughness of its welded joint were investigated at 650 ℃ and 730 ℃. Fracture toughness (J0.2) of the base metal was much higher than that of the weld metal at the same temperature, which was attributed to its excellent macroscopical plasticity and the interactions of strain localization, misorientation, and coincidence site lattice (CSL) boundaries. For the base metal, the value of J0.2 was higher at 730 ℃ than at 650 ℃, resulting from the appreciable increase in ductility and decrease in strain localization as the temperature increased. For the weld metal, higher temperature (730 ℃) reduced strength but hardly improved plasticity, and the regions of high strain localization uniformly distributed in the weld metal, resulting in completely tearing the whole interface apart and lower fracture toughness of the weld metal.",
keywords = "Fracture toughness, Microstructure, Nickel-based alloy, Temperature, Welded joint",
author = "Xiaogang Li and Kejian Li and Shanlin Li and Jiluan Pan and Zhipeng Cai",
note = "Publisher Copyright: {\textcopyright} 2019 ASM International{\textregistered} All rights reserved.; Joint 9th International Conference on Advances in Materials Technology for Fossil Power Plants, EPRI 2019 and the 2nd International 123HiMAT Conference on High-Temperature Materials ; Conference date: 21-10-2019 Through 24-10-2019",
year = "2019",
doi = "10.31339/asm.cp.am-epri-2019p0405",
language = "英语",
series = "Joint EPRI-123HiMAT International Conference on Advances in High-Temperature Materials - Proceedings from EPRI's 9th International Conference on Advances in Materials Technology for Fossil Power Plants and the 2nd International 123HiMAT Conference on High-Temperature Materials",
publisher = "ASM International",
pages = "405--415",
editor = "John Shingledecker and Masao Takeyama",
booktitle = "Joint EPRI-123HiMAT International Conference on Advances in High-Temperature Materials - Proceedings from EPRI's 9th International Conference on Advances in Materials Technology for Fossil Power Plants and the 2nd International 123HiMAT Conference on High-Temperature Materials",
address = "美国",
}