Research Article

Ageing Effects on Microstructure, Mechanical Properties, and Fracture Behaviour of 9Cr-1.5Mo-1Co-VNbBN Martensitic Steel Welded Joint for High Temperature Application

Figure 12

Light-optical microstructures beneath “type III failure” of CB2 weldment crept at 625°C/80 MPa for 14145 h showing the following: microstructural gradient between WM and FZ (a) and microstructure of FZ in detail (b).
(a)
(b)