Creep Properties of High Cr Resisting Weld Metal Alloyed with Co

Abstract:

A 9-12% Cr ferritic steel weld metal containing 1% Co partially substituted for nickel was prepared by submerged arc welding processing(SAW). The microstructures and creep properties of the weld metal have been investigated. The microstructure exhibited a fully tempered martensitic structure free of δ-ferrite. The creep properties of the obtained weld metal are inferior to that of the P92 base metal at 600 and 650 . The values of A and n for weld metal in Norton power law constitution at 650 are 1.12×10-21 and 8.14, respectively.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 1562-1566
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.1562
• Online since: October 2010
• Authors: Xue Wang, Qian Gang Pan, Liang Fei Zhan, Zi Jun Liu, Hong Liu, Yong Shun Tao
• Keywords: 9-12Cr Steel, Creep Behaviour, Microstructure, P92, Weld Metal

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