Study on Microstructure and Properties of Titanium/Steel Hybrid Bonding Interface
Aiming at the difficulty of titanium/steel dissimilar metal connection,the titanium and steel are jointed through met-allurgical and mechanical connection by surface structure design and powder metallurgy technology with the titanium alloy pow-ders and marine steel.It is found out that the interface of titanium/steel hybrid joint is 100％bonded.The inter-diffusion of Fe and Ti elements helps to form the metallurgical bonding,and combining with the mechanical bonding,the tensile strength of the hy-brid joint reaches 449 MPa,the shear strength reaches 299 MPa,and the impact energy reaches 31 J.The research results can meet the needs of titanium/steel welding such as realizing the joint of high-strength titanium alloy and steel,improving the impact tough-ness of the connection interface,and facilitating the application of titanium/steel joint in the curved surface structures.
dissimilar metal connectiontitanium/steelhybrid bondingmicrostructureproperties
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