Inhomogeneous interface structure and mechanical properties of rotary friction welded TC4 titanium alloy/316L stainless steel joints

A Sound Dissimilar AA5052/S45C Joint Formed by Uniform and Simultaneous Deformation of Both Materials Using Pressure-controlled Joule Heat Forge Welding

“…In order to prevent the deterioration of the dissimilar joint quality, it is necessary not only to decrease the IMC layer thickness to a few micrometers or less, but also to reduce the heat input to suppress the formation of the softened heat affected zone (HAZ). Accordingly, various solid-state welding methods, such as friction stir welding, [13][14][15][16][17][18] friction stir spot welding [19][20][21] and friction welding, [22][23][24][25][26][27] have been used for dissimilar joining of Al and Fe combinations. Fukumoto et al 13) reported that the material flow of both sides in the friction stir butt welding between Al alloy and steel is the most influential factor on the joint's microstructure and mechanical properties.…”

“…Friction welding, in which the rotational friction heat generated at the interface between the two materials and the interface deformation under the applied pressure in the axial direction are utilized to achieve the joining, is one of the representative solid-state pressure welding methods, especially for joining the bars or rods. Li et al 23) performed the friction welding of Ti alloy and stainless steel and reported that the interfacial microstructure was inhomogeneous because the heat generations between the weld interface center and periphery were quite different. Liu et al 24,25) studied the microstructural evolution during the friction welding of a Ti alloy and stainless steel and the relationship between the welding parameters, interfacial microstructure and mechanical properties of the joints was investigated.…”

Microstructure and Interfacial Reactions of Resistance Brazed Lap Joints between TC4 Titanium Alloy and 304 Stainless Steel Using Metal Powder Interlayers

“…The group weldment of the titanium alloy and stainless steel can make full use of the advantages of these two materials and have good economic benefits simultaneously, so its high-quality joints have extensive application prospects in nuclear, petrochemical, transportation and aerospace industries [ 1 , 2 , 3 ]. However, significant differences in the physical properties of these two dissimilar materials, such as their linear thermal expansion coefficient and melting point, can introduce considerable residual stress.…”

Vacuum brazing of titanium alloy to stainless steel enhance by fiber laser surface texturing

“…With outstanding mechanical properties, corrosion resistance, high temperature resistance and weight reduction, dissimilar join of titanium alloy/stainless steel components attracted thriving interest in particular industries, such as aerospace repulsion system, oil pipeline and also in energy industries focusing for nuclear reactor [1,2]. Past experiments shown that some of cycles have been effectively applied to join titanium composite and treated steel, solid-state welding [3,4] and fusion welding [5,6]. Because of outstanding advantages i.e economical and efficiency, brazing also more flexible in term of joint design and favourable to joint dissimilar material [1,7,8].…”