Its features are:

 (1) The joint strength is high. It is especially suitable for welding of materials that are prone to cracks by fusion welding. Since the properties of the base metal are not changed, the chemical composition and microstructure of the joint are the same or close to those of the base metal, and the joint strength is high.

 (2) There are many types of weldable materials. Diffusion welding can weld many similar metals and alloys, as well as many dissimilar materials. If vacuum diffusion welding with a transition alloy layer is used, it is also possible to weld dissimilar or the same materials that have very different physical and chemical properties and are prone to form brittle compounds at high temperatures.

 (3) It can be used for the manufacture of parts that require large-area bonding, laminated components, hollow components, porous or components with complex internal channels, closed internal joints, and other parts with poor accessibility by welding methods.

 (4) Diffusion welding is integral heating, with small deformation of components and high dimensional accuracy