Abstract
T91 steel pipes were joined by the transient liquid-phase (TLP) bonding process using BNi 2, Fe 78Si 9B 13 and FeNiCrSiB amorphous filler in argon atmosphere. The microstructures and properties, as well as the element distribution of TLP joints of T91 martensitic steel with different filler metals have been examined. The testing results showed that the tensile strength and bend strength at room temperature of the joint with Fe–Ni–Cr–Si–B amorphous filler were equal to greater than that of the substrate. In contrast, however, boride is found in the joint region bonded with Fe 78Si 9B 13 interlayer. TLP bonding using the nickel-base foil BNi 2, resulted in a bond region stabilized by the high nickel concentration. It is considered that fracture of the joints is caused by these brittle intermetallics at the interface and the discontinuity of the bond line microstructure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
