Abstract
Abstract Joining of NiTi and Ti6Al4V has substantial potential for applications in multicomponent energy harvesting, aviation, electronics, and biomedical industries. However, previous studies indicate that an effective joining technique has not been developed which avoid the formation of the brittle intermetallic NiTi/Ti6Al4V. This paper focuses on experimentally investigating the dissimilar joining process of NiTi/Ti6Al4V using a fiber-laser. Thin Cu was applied at the joint as a welding interlayer to minimize the in-situ brittle phase formation during laser processing. Characterization has been done using radiographic analysis, scanning electron microscope, surface roughness test, X-ray diffraction, micro-hardness, and tensile test. The development of complex intermediate phases (such as Cu4Ti3 and CuNi2Ti) observed at the joining interface ceases the development of unwanted brittle phases (such as NiTi2, Ni3Ti4). The joining strength of 353 MPa was obtained by using laser power of 800 W and a scan speed of 17 mm/s. Weldment microstructure shows the presence of a negligible percentage of pores (
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.