Autogenous laser-welded dissimilar joint of ferritic/martensitic P92 steel and Inconel 617 alloy: mechanism, microstructure, and mechanical properties

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Amit Kumar ◽  
Chandan Pandey
Keyword(s):  
Mechanical Properties ◽  
Dissimilar Joint ◽  
P92 Steel ◽  
Microstructure And Mechanical Properties ◽  
Inconel 617

Microstructure and High Temperature Mechanical Properties of Inconel 617

2007 ◽  
Vol 544-545 ◽  
pp. 411-414 ◽  
Author(s):  
Tae Sun Jo ◽  
Gil Su Kim ◽  
Young Ik Seo ◽  
Woo Seog Ryu ◽  
Young Do Kim
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Oxide Layer ◽  
Tube Material ◽  
Internal Oxide ◽  
High Temperature Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Inconel 617 ◽  
Second Phases ◽  
High Temperature Gas

Inconel 617 is a candidate tube material for high temperature gas-cooled reactors (HTGR). The microstructure and mechanical properties of Inconel 617 were studied after exposure at high temperature of 1050oC. The dominant oxide layer was Cr-oxide. The internal oxide and Crdepleted region were observed below the Cr-oxide layer. The major second phases are M23C6 and M6C types of carbides. The composition of M23C6 and M6C were determined to be Cr21Mo2C6 and Mo3Cr2(Ni,Co)1C, respectively, by EDS. These carbides are coarsened during exposure. M6C carbide is more stable than M23C6 at high temperature. There was not much change in mechanical properties after exposure at 1050oC for 1000 h.

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